--- title: "Automated Tensile Testing Machines for Polymer & Rubber Labs | LabsCubed" description: "Automated, ISO- and ASTM-compliant tensile testing for polymer and rubber labs — repeatable results that free your team from repetitive testing." url: https://labscubed.com/ --- # Automated tensile testing for polymer and rubber labs. ISO- and ASTM-compliant automation that delivers repeatable results and frees your team from repetitive testing. ![CubeTen automated tensile testing machine](https://labscubed.com/assets/img/media/hero-cubeten-crop-760.webp) ![ASTM D638](https://labscubed.com/assets/img/standards/astm-logo.webp) Type I ASTM D638 Automated Plastic Tensile Testing ![ASTM D638](https://labscubed.com/assets/img/standards/astm-logo.webp) Type II ASTM D638 Automated Plastic Tensile Testing ![ISO 527-2](https://labscubed.com/assets/img/standards/iso-logo.webp) Type 1A ISO 527-2 Automated Plastic Tensile Testing ![ASTM D624](https://labscubed.com/assets/img/standards/astm-logo.webp) Die C ASTM D624 Automated Rubber Tear Testing ![ISO 37](https://labscubed.com/assets/img/standards/iso-logo.webp) Type 2 ISO 37 Automated Rubber Tensile Testing Explore the full specimen library ![ASTM D638](https://labscubed.com/assets/img/standards/astm-logo.webp) Type I ASTM D638 Automated Plastic Tensile Testing ![ASTM D638](https://labscubed.com/assets/img/standards/astm-logo.webp) Type II ASTM D638 Automated Plastic Tensile Testing ![ISO 527-2](https://labscubed.com/assets/img/standards/iso-logo.webp) Type 1A ISO 527-2 Automated Plastic Tensile Testing ![ASTM D624](https://labscubed.com/assets/img/standards/astm-logo.webp) Die C ASTM D624 Automated Rubber Tear Testing ![ISO 37](https://labscubed.com/assets/img/standards/iso-logo.webp) Type 2 ISO 37 Automated Rubber Tensile Testing See all samples ## Powering the automated workflows of the industry's most advanced polymer and elastomer labs. ![Parker Hannifin](https://labscubed.com/assets/img/partners/parker-hannifin.webp)![Chevron Phillips Chemical](https://labscubed.com/assets/img/partners/chevron-phillips.webp)![Caterpillar](https://labscubed.com/assets/img/partners/caterpillar.svg)![Wacker](https://labscubed.com/assets/img/partners/wacker.svg)![HEXPOL](https://labscubed.com/assets/img/partners/hexpol.webp)![ACE Laboratories](https://labscubed.com/assets/img/partners/ace.webp)![Momentive](https://labscubed.com/assets/img/partners/momentive.webp)![Soucy](https://labscubed.com/assets/img/partners/soucy.webp) ### Industrial power. Compact footprint. Rubber Testing| ![Autonomous plastic tray loaded with test specimens](https://labscubed.com/uploads/tray-labscubed-plastic.webp) 15 Specimens Per Run Loaded, tested and measured unattended on the CubeTen carousel. 95% Recover Lab Time Save up to 95% of your team's time for higher-value tasks. 18–24 Months to Full ROI Maximize ROI while accelerating results and technician time. 40% Ensure Data Consistency Up to 40% more consistent results, proven by extensive studies. Specimen Library ### Every standard specimen our machines test. From ASTM D638 plastics to ISO 37 elastomers — select a geometry to see its dimensions and matching standard. ASTM D638 Type I Tensile Standard rigid-plastic tensile bar — the most common geometry. Overall 165 mm Gauge 50 mm Narrow W 13 mm Thickness 3.2 mm ![ASTM D638](https://labscubed.com/assets/img/standards/astm-logo-ink.webp) ASTM D638 Type I Automated plastic tensile testing to ASTM D638 — loaded, gripped and measured unattended, end to end. How our testing machines work ## The 3-step setup. 01 ### Load up to 15 Samples at a time Place ASTM or ISO standard specimens onto the autonomous dual-gripper carousel. 02 ### Set Parameters, press start and walk away Input test specifications via the intuitive native touchscreen or remote interface. 03 ### Let it run while your team moves on The system automatically grips, pulls, and calculates everything without human intervention — freeing your team’s time for the work only they can do. Configure ## Find out which of our automated testing machines fits your lab, with a simple test. Plastic CubeTen / CubeFlex Rubber CubeOne Other Not listed above Your match CubeTen 20–50 samples/day Matched to 1 standard. [Explore CubeTen](https://labscubed.com/plastic-testing) ## CubeTen [Explore CubeTen](https://labscubed.com/plastic-testing) ![CubeGo portable tensile testing machine](https://labscubed.com/assets/img/media/machine-cubego-v3.webp)![CubeTen automated tensile testing machine](https://labscubed.com/assets/img/media/machine-cubeten.webp)![CubeOne automated tensile testing machine](https://labscubed.com/assets/img/media/machine-cubeone.webp) No massive infrastructural changes required. Designed to fit through standard lab doors and plug into conventional outlets while delivering uncompromising strength. Standard ASTM D638 / ISO 527 Force (Omega Load Cell) Up to 10kN Elongation Up to 1000% Weight 250 lbs (115 kg) Height 1.8m Footprint 0.8 × 1.2m Power Supply 220V Single-Phase Connectivity Ethernet, Wi-Fi 6 ## Access Your Data Instantly. Anywhere. Every test streams straight into the **LabsCubed Portal** — your cloud workspace to review, compare and export results from anywhere. Need the data elsewhere? Our software team pipes it directly into the systems your lab already runs. The LabsCubed Portal ![LabsCubed data review dashboard — stress-strain analysis](https://labscubed.com/assets/img/media/dashboard.webp)![LabsCubed data review dashboard — stress-strain analysis](https://labscubed.com/assets/img/media/dashboard_01.webp) Live dashboards, streamed from every test into the LabsCubed Portal. Or integrate with the systems you already run ![Alpha Workbench logo](https://labscubed.com/assets/img/media/integ-alpha.webp) Alpha Workbench Push tensile results straight into Alpha’s rheology and materials-testing workflows — no manual re-entry. ![Uncountable logo](https://labscubed.com/assets/img/media/integ-uncountable.webp) Uncountable Feed every data point into Uncountable’s R&D and experiment-management platform to close the loop on formulation. ![SAP logo](https://labscubed.com/assets/img/media/integ-sap.webp) SAP Sync results into SAP so quality records and ERP stay in lockstep across the business. …and these are just a few. Don’t see your tool? [We’ll build the integration you need →](https://labscubed.com/get-a-quote) ## Built for the most demanding industries. LabsCubed systems are deployed worldwide in facilities where failure is not an option. ![Automotive & Transportation](https://labscubed.com/assets/img/industries/automotive.webp) Automotive & Transportation Validate rubbers and plastics for extreme on-road stress and durability. ![Medical Devices & Healthcare](https://labscubed.com/assets/img/industries/health.webp) Medical Devices & Healthcare Ensure precision and integrity in critical fluid-delivery components. ![Additive Manufacturing & Advanced Compounding](https://labscubed.com/assets/img/industries/additive.webp) Additive Manufacturing & Advanced Compounding Characterize printed and compounded materials with repeatable accuracy. ## Anatomy of precision. Every component is over-engineered. We stripped away the unnecessary to focus entirely on uncompromising stability and data integrity. Measurement ## How CubeTen and CubeOne measure strain accurately Our machines pair a built-in encoder with calibrated contact and non-contact extensometers, so every test is measured by the right method for the material. ![Crosshead Displacement](https://labscubed.com/assets/img/media/crosshead.webp) Built-in · No setup Crosshead Displacement Strain is derived from crosshead travel, read by the servo motor's high-resolution encoder. Always on, with nothing to attach or calibrate per sample. Best for High-throughput runs, elastomers and large elongations that exceed an extensometer’s travel. ![Physical Extensometer](https://labscubed.com/assets/img/media/physical-extensometer.webp) Contact Physical Extensometer A calibrated clip-on gauge grips the specimen and measures elongation directly at the gauge length — the reference method for modulus and yield. Best for ASTM & ISO modulus and yield results that demand the tightest accuracy. ![Video Extensometer](https://labscubed.com/assets/img/media/video-extensometer.webp) Optical · Non-contact Video Extensometer High-speed cameras track contrast marks on the specimen, measuring strain without ever touching it — so nothing slips or loads the sample. Best for Thin films, soft or delicate materials, and strain-to-break measurement. From our channel ## See CubeTen and CubeOne in action. [Watch on YouTube](https://www.youtube.com/watch?v=8IuGJsjw2AE) [![Automated Tensile Testing: How LabsCubed is Building the Lab of the Future](https://labscubed.com/assets/img/yt/8IuGJsjw2AE.webp)](https://www.youtube.com/watch?v=8IuGJsjw2AE) Automated Tensile Testing: How LabsCubed is Building the Lab of the Future [Watch on YouTube](https://www.youtube.com/watch?v=khQHHxJd2hM) [![How to Eliminate Manual Error: Automated Testing for Rubber & Plastics](https://labscubed.com/assets/img/yt/khQHHxJd2hM.webp)](https://www.youtube.com/watch?v=khQHHxJd2hM) How to Eliminate Manual Error: Automated Testing for Rubber & Plastics [Watch on YouTube](https://www.youtube.com/watch?v=eWPbdBoOrJ4) [![AI in Tensile & Flexure Testing: The Path to the Autonomous Material Lab](https://labscubed.com/assets/img/yt/eWPbdBoOrJ4.webp)](https://www.youtube.com/watch?v=eWPbdBoOrJ4) AI in Tensile & Flexure Testing: The Path to the Autonomous Material Lab [Watch on YouTube](https://www.youtube.com/watch?v=Y0qXEgPcf5U) [![Why Manual Tensile Testing is Costing Your Lab 95% More Time](https://labscubed.com/assets/img/yt/Y0qXEgPcf5U.webp)](https://www.youtube.com/watch?v=Y0qXEgPcf5U) Why Manual Tensile Testing is Costing Your Lab 95% More Time [Watch on YouTube](https://www.youtube.com/watch?v=RILG7TXhc-w) [![LabsCubed Robotic Arm](https://labscubed.com/assets/img/yt/RILG7TXhc-w.webp)](https://www.youtube.com/watch?v=RILG7TXhc-w) LabsCubed Robotic Arm ![LabsCubed automation white paper](https://labscubed.com/assets/img/media/white-paper-mockup.webp) White Paper ## Beyond the bottleneck: a data-backed case for testing automation. Download your business case for automation — the definitive data on cost reduction and eliminating human error. ![LabsCubed automation white paper](https://labscubed.com/assets/img/media/white-paper-mockup.webp) Support ## Frequently asked questions What does the onboarding and support process look like? We offer a 'white-glove' setup. A LabsCubed specialist performs on-site installation, calibration to ASTM standards, and team training. Post-installation, we provide prompt remote support and annual on-site calibration services to ensure your equipment remains at peak performance. What is the typical ROI for a LabsCubed system? Most customers achieve a full return on investment in 18–24 months. This is achieved through labor efficiency — recovering 3–4 hours of technician time daily; 2-in-1 savings — replacing the need for separate tensile and flexure machines with one automated platform; and accuracy — reducing costly scrap and rework by eliminating operator-induced variability. How do I access and visualize my test data? Data is recorded instantly and can be accessed via the machine's touchscreen or the cloud-based AI Portal. Our software team ensures seamless integration with your existing infrastructure, including Alpha Workbench, Uncountable, SAP, and other LIMS/ERP systems. What does LabsCubed do? LabsCubed designs and manufactures high-performance automated material testing systems specifically for the rubber and plastics industries. Our flagship products, the CubeOne and CubeTen, automate the entire testing lifecycle — from sample measurement and robotic loading to AI-driven data analysis. By integrating robotics with our proprietary AI Suite, we help global manufacturers eliminate manual bottlenecks and achieve unmatched data consistency. Who are LabsCubed products for? Our solutions are engineered for Lab Managers, Quality Directors, and R&D Engineers at companies with medium-to-high testing volumes. LabsCubed is the ideal fit for facilities processing 50+ rubber samples or 10+ plastic tensile tests per day. We currently serve industry leaders like Bridgestone, Parker Hannifin, Hexpol, and AirBoss who prioritize high-throughput and operator-independent results. What industries do you serve? We specialize in the Rubber (Custom Compounding, Elastomers) and Plastics (Compounding, Processing) sectors. Our technology is a staple in the Automotive, Medical Device, Aerospace, Wire & Cable, and Consumer Goods industries, where precision in material properties like tensile and flexure strength is critical for safety and performance. What makes LabsCubed different from traditional testing equipment providers? Unlike traditional Universal Testing Machines (UTMs) that require a technician to load every sample manually, LabsCubed offers 2-in-1 Intelligent Automation. We combine high-precision hardware for both Tensile and Flexure testing with an AI-driven software ecosystem. This allows for up to 85–95% recovery of technician time, 40% higher data consistency, and conversational data analytics that you won't find in manual systems. What are the key differences between the CubeOne and CubeTen? CubeOne is best for Rubber and Elastomers. It features a force capacity of up to 1kN and is optimized for high-elongation materials. CubeTen is engineered for Rigid Plastics and High-Strength materials. It provides a force capacity of up to 10kN and supports specialized testing like Single Lap Shear and T-Peel adhesives. What types of materials can your systems test? Our systems are designed for a vast range of polymers tested at ambient temperatures. Rubber/Elastomers: NR, SBR, EPDM, NBR, and Silicone (VMQ). Plastics: PP, HDPE, PVC, ABS, Polycarbonate (PC), Nylon (PA), POM, PBT, and TPU. Thermosets: Epoxy and Phenolic Resins. Which testing standards can your equipment meet? LabsCubed systems are fully compliant with major international standards, ensuring easy integration into any certified lab. Tensile: ASTM D412 & ISO 37 (Rubber), ASTM D638 & ISO 527 (Plastics). Flexure: ASTM D790 & ISO 178. Tear: ASTM D624 (Types B and C). Adhesives (CubeTen): Single Lap Shear and T-Peel. Does the horizontal design affect accuracy compared to traditional vertical UTMs? No. LabsCubed has 10 years of comparative test data proving that our horizontal orientation delivers results identical to traditional vertical machines. This design is what enables our high-speed robotic loading. Our systems are precision-calibrated to ensure gravity and friction have zero impact on load readings, a fact validated by our long-term partnerships with global giants like Bridgestone and Parker Hannifin. At what temperature conditions do the machines perform tests? LabsCubed systems are optimized for high-throughput testing at standard laboratory ambient temperatures. This focus allows us to provide the fastest, most reliable automated workflow for high-throughput quality control and R&D. We do not currently support extreme high or low temperature testing (e.g., environmental chambers). What is the LabsCubed AI Suite & AI Portal? This is our proprietary software ecosystem that transforms your lab into an innovation hub. Key features include AI-Enhanced Vision — precision elongation measurement that ignores marking imperfections, significantly reducing failed tests; Predictive Maintenance — the AI monitors machine health and performs 'self-recovery' for minor issues, minimizing downtime; and Conversational Analytics — through the AI Portal, you can ask your data questions (e.g., 'Compare batch A to batch B') in plain English, rather than manually sorting through spreadsheets. --- --- title: "About LabsCubed | Lab Automation for Tensile Testing" description: "LabsCubed builds lab automation for materials testing. See how CubeOne (rubber) and CubeTen (plastics) automated tensile testing machines give laboratories their time back." url: https://labscubed.com/about-us --- About LabsCubed # LabsCubed Began with a Simple Belief: Materials Can Change the World We started LabsCubed because we saw something worth changing: the people developing tomorrow's materials were spending too much of today testing them by hand. We believe lab automation can give laboratories back that time, so they can focus on learning, improving, and creating. Because when materials move forward, the world moves with them. [Book a Demo Now](https://labscubed.com/get-a-quote) Our Story ## How LabsCubed Began ![The LabsCubed founding team with an early automated tensile testing prototype at the University of Waterloo.](https://labscubed.com/assets/img/about/story-2016-1280.webp) 2016 ### The Journey Begins LabsCubed began with a firsthand experience: years of repetitive, manual material testing revealed how much time laboratories could lose to the process. We saw an opportunity to change that, to make testing simpler and more automated, so the people developing tomorrow's materials could spend more time innovating. ![LabsCubed engineers designing an early automated tensile testing prototype in CAD.](https://labscubed.com/assets/img/about/story-2017-1760.webp) 2017—2018 ### We Listened Before We Built We didn't start by building a machine. We started by listening. Across laboratories and conversations with industry professionals, we saw the same frustration: valuable time spent repeating manual testing. It became clear that the future wasn't about asking laboratories to work harder, but about building smarter ways to work. ![The first LabsCubed CubeOne automated rubber tensile testing machine on display at a trade show booth.](https://labscubed.com/assets/img/about/story-2018-1280.webp) 2018 ### CubeOne: Automated Rubber Tensile Testing Made Simple CubeOne marked our first major step toward automated materials testing—and a new way of approaching rubber tensile testing. Designed around the people who use it, CubeOne takes repetitive work off the technician's hands, automating everything from smart gripping and sample measurement to testing and data collection. The result is a simpler, more consistent testing process that gives laboratories more time to focus on the work that matters. ![LabsCubed co-founders shaking hands on the CentreStage at the PLAST-EX and Advanced Design & Manufacturing Expo.](https://labscubed.com/assets/img/about/story-2019-1280.webp) 2019 ### Innovation Earns Recognition Our work on CubeOne earned top recognition at the PLAST-EX and Advanced Design & Manufacturing Expo competition. More than an award, it was an early validation of what we were building: a simpler, more automated approach to material testing, designed around the people who use it. ![Crated full-production CubeOne machines on pallets, ready to ship to customers.](https://labscubed.com/assets/img/about/story-2020-1280.webp) 2020 ### CubeOne Makes Its Mark Our first full-production CubeOne machines reached customers in North America, and the response was a major success. Many of the professionals who helped shape our understanding of the industry in the early days became our first customers, bringing CubeOne into their laboratories and turning our vision for automated rubber tensile testing into reality. ![A LabsCubed team member with arms spread wide in the open workshop of the larger LabsCubed facility.](https://labscubed.com/assets/img/about/story-2021-1280.webp) 2021 ### Making Room to Grow CubeOne's growing success gave LabsCubed a reason to grow with it. We moved into a larger facility to expand our production, strengthen our capabilities, and make room for everything we were building next. ![The updated LabsCubed CubeOne automated rubber tensile testing machine.](https://labscubed.com/assets/img/about/story-2022.webp) 2022 ### CubeOne Gets Even Better We didn't stop at building CubeOne—we kept improving it. Major updates in 2022 increased its capacity to up to 12 specimens while helping laboratories recover up to 85% of lab time and improve data consistency by 40%. With a proven 12–24 month ROI, CubeOne continued to turn automation into measurable value for the laboratory. ![LabsCubed CubeTen automated plastic tensile testing machine at a trade show booth.](https://labscubed.com/assets/img/about/story-2024-1280.webp) 2024 ### Building on Success: Introducing CubeTen After years of refining CubeOne and earning the trust of leading rubber manufacturers, we were ready to take the next step. In 2024, we introduced CubeTen and expanded our automated testing capabilities into plastics, bringing the same focus on simplicity, efficiency, and intelligent automation to a much broader materials market. It was more than a new product—it was the next chapter in our vision for smarter testing laboratories. ![The LabsCubed team with Canadian government and industry leaders at a manufacturing event.](https://labscubed.com/assets/img/about/story-2026-1280.webp) 2026 ### Taking LabsCubed Global LabsCubed is entering a new chapter: taking automated materials testing beyond North America and into laboratories around the world. With CubeOne and CubeTen now reaching laboratories across Europe and East Asia through our partners in Germany, Italy, and Japan, we're seeing our vision travel further than ever before. As more laboratories turn to automation, LabsCubed is building the technology to help them move forward. [Get a Quote Now](https://labscubed.com/get-a-quote) What comes next ## Building the Autonomous Lab We started LabsCubed to make testing simpler. Today, we're building toward something much bigger: laboratories that can operate with greater autonomy. By combining robotics, AI-powered vision, predictive maintenance, and conversational data analytics, we're turning automated testing into an intelligent workflow—one that can run, learn, and give teams more time to focus on what comes next. Ontario, Canada ## Stay in touch. Email [info@labscubed.com](mailto:info@labscubed.com) Office 14 Hoffman St., Kitchener, Ontario, Canada ![World map with the LabsCubed office marked in Kitchener, Ontario, Canada](https://labscubed.com/assets/img/about/location-map.svg) --- --- title: "Blog | Automated Tensile Testing Equipment | LabsCubed" description: "Here, you'll find comprehensive articles and resources on tensile testing and laboratory automation. We share insights on how to implement automated solutions to save time, achieve higher data consistency, and effectively minimize human error in your lab operations." url: https://labscubed.com/blog --- # LabsCubed Knowledge Hub Here, you'll find comprehensive articles and resources on tensile testing and laboratory automation. We share insights on how to implement automated solutions to save time, achieve higher data consistency, and effectively minimize human error in your lab operations. [All](https://labscubed.com/blog) [Data](https://labscubed.com/blog/category/data) [Flexure Testing](https://labscubed.com/blog/category/flexure-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Testing Standards](https://labscubed.com/blog/category/testing-standards) [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ## Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ## Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Tensile test of composite materials - carbon fibre specimen clamped in tensile grips in a materials testing lab](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-test-of-composite-materials-practical-guide/6a6c86479be977e6ac041dc4_Thumb--20Tensile-20Test-20of-20Composite-20Materials-20--20LabsCubed-20Blog.webp?width=800&quality=75) Testing Standards 9 min read ## Tensile Test of Composite Materials: A Practical Guide Tensile test of composite materials made simple: specimen prep, fixtures, standards, and how automation cuts variability. See the guide and run cleaner tests.](https://labscubed.com/post/tensile-test-of-composite-materials-practical-guide)[![Universal testing machine for rubber - LabsCubed benchtop tester and a specimen tray being loaded by hand](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-for-rubber-buyers-guide/6a6c62dd54cb89fa0482971a_Thumbnail--20Universal-20Testing-20Machine-20for-20Rubber-20LabsCubed-20Blog.webp?width=800&quality=75) Lab Automation 9 min read ## Universal Testing Machine for Rubber: 2026 Buyer Guide Choose a universal testing machine for rubber: grips, force ranges, and automated workflows that cut variability. See how LabsCubed automates rubber QA.](https://labscubed.com/post/universal-testing-machine-for-rubber-buyers-guide)[![ASTM D3039: How to Test Composite Tensile Properties](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/astm-d3039-composite-tensile-testing-automation/Thumb--ASTM-3039M-Standard---LabsCubed-Blog.webp?width=800&quality=75) Testing Standards 9 min read ## ASTM D3039: How to Test Composite Tensile Properties ASTM D3039 measures composite tensile properties. See specimen prep, grips, automation, and how Cube cuts variability. Get a demo from LabsCubed today.](https://labscubed.com/post/astm-d3039-composite-tensile-testing-automation)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ## Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation)[![Polymer mechanical testing methods and standards](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-mechanical-testing-methods-standards-automation/thumb-polymer-mechanical-testing.webp?width=800&quality=75) Testing Standards Lab Automation 9 min read ## Polymer Mechanical Testing: Methods, Standards & Automation Learn polymer mechanical testing methods, ASTM standards, and how automated systems like LabsCubed's Cube reduce variability in plastics and rubber QA labs.](https://labscubed.com/post/polymer-mechanical-testing-methods-standards-automation)[![How Temperature and Humidity Affects Tensile Strength in Plastics](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/how-temperature-and-humidity-affects-tensile-strength-in-plastics/How-Temperature-and-Humidity-Affects-Tensile-Strength-in-Plastics.png?width=800&quality=75) Data 9 min read ## How Temperature and Humidity Affects Tensile Strength in Plastics Discover how environmental conditions like temperature and humidity impact the tensile strength of plastics, including 3D printed parts. Essential insights for R&D managers and lab supervisors in plastics testing.](https://labscubed.com/post/how-temperature-and-humidity-affects-tensile-strength-in-plastics)[![Lab automation robotics thumbnail for plastics and rubber QA](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/lab-automation-robotics-for-plastics-rubber-qa-teams/thumb-lab-automation-robotics.webp?width=800&quality=75) Lab Automation 9 min read ## Lab Automation Robotics for Plastics and Rubber QA Teams Robotic lab automation is changing how plastics and rubber QA labs operate. Learn how to automate ASTM tests, cut variability, and scale testing throughput.](https://labscubed.com/post/lab-automation-robotics-for-plastics-rubber-qa-teams)[![Composite Material Testing: Methods, Standards, and Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/composite-material-testing/Composite-Compression-Test---LabsCubed.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ## Composite Material Testing: Methods, Standards, and Automation Learn the key composite material testing methods, ASTM standards, and how automation improves throughput, repeatability, and data quality.](https://labscubed.com/post/composite-material-testing)[![Tensile Testing Machine Guide for Plastics & Rubber Labs](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-testing-machine/Thumbnail---Tensile-Testing-Machine-Guide---LABSCUBED2.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ## Tensile Testing Machine Guide for Plastics & Rubber Labs Learn how to choose the right tensile testing machine for plastics and rubber, and how automation improves throughput and repeatability.](https://labscubed.com/post/tensile-testing-machine)[![Plastics tensile testing equipment thumbnail - LabsCubed CubeTen automated system](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/how-to-choose-plastics-tensile-testing-equipment/thumb-plastics-tensile-testing-equipment.webp?width=800&quality=75) Tensile Testing Testing Standards 4 min read ## How to Choose Plastics Tensile Testing Equipment A practical guide for QA labs on choosing plastics tensile testing equipment—covering force range, grips, standards, and when automation pays off.](https://labscubed.com/post/how-to-choose-plastics-tensile-testing-equipment) Page 1 of 2 [Older →](https://labscubed.com/blog/page/2) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Data" description: "Data articles from LabsCubed — automated materials testing, standards and lab workflow guidance." url: https://labscubed.com/blog/category/data --- # Data 2 articles [All](https://labscubed.com/blog) [Data](https://labscubed.com/blog/category/data) [Flexure Testing](https://labscubed.com/blog/category/flexure-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Testing Standards](https://labscubed.com/blog/category/testing-standards) [![How Temperature and Humidity Affects Tensile Strength in Plastics](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/how-temperature-and-humidity-affects-tensile-strength-in-plastics/How-Temperature-and-Humidity-Affects-Tensile-Strength-in-Plastics.png?width=800&quality=75) Data 9 min read ## How Temperature and Humidity Affects Tensile Strength in Plastics Discover how environmental conditions like temperature and humidity impact the tensile strength of plastics, including 3D printed parts. Essential insights for R&D managers and lab supervisors in plastics testing.](https://labscubed.com/post/how-temperature-and-humidity-affects-tensile-strength-in-plastics)[![Understanding the Numbers: Tensile Data Collection and Saving Time with Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-data-collection-and-saving-time-with-automation/Screenshot-2025-07-18-at-2.02.04-PM.png?width=800&quality=75) Data 7 min read ## Understanding the Numbers: Tensile Data Collection and Saving Time with Automation This article explains the importance of understanding and utilizing tensile testing data for better material selection. It highlights how raw test data, particularly the stress-strain curve, provides crucial material properties like ultimate tensile strength, yield strength, elongation at break, and Young's Modulus.](https://labscubed.com/post/tensile-data-collection-and-saving-time-with-automation) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Flexure Testing" description: "Flexure Testing articles from LabsCubed — automated materials testing, standards and lab workflow guidance." url: https://labscubed.com/blog/category/flexure-testing --- # Flexure Testing 1 article [All](https://labscubed.com/blog) [Data](https://labscubed.com/blog/category/data) [Flexure Testing](https://labscubed.com/blog/category/flexure-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Testing Standards](https://labscubed.com/blog/category/testing-standards) [![ASTM D790/ISO 178 Explained: Everything You Need to Know About Plastic Flexural Testing](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/astm-d790-iso-178-explained-everything-you-need-to-know-about-plastic-flexural-testing/cubeflex-testing-machine-flexure-bending-labscubed.webp?width=800&quality=75) Flexure Testing 5 min read ## ASTM D790/ISO 178 Explained: Everything You Need to Know About Plastic Flexural Testing Mastering ASTM D790 & ISO 178: Why the Future of Flexural Testing is Horizontal Stop wasting time on manual grip changes and calibration. Learn the essentials of plastic flexural testing and discover how CubeFlex is revolutionizing the lab with automated, horizontal 3-point bending.](https://labscubed.com/post/astm-d790-iso-178-explained-everything-you-need-to-know-about-plastic-flexural-testing) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Lab Automation" description: "Lab Automation articles from LabsCubed — automated materials testing, standards and lab workflow guidance." url: https://labscubed.com/blog/category/lab-automation --- # Lab Automation 15 articles [All](https://labscubed.com/blog) [Data](https://labscubed.com/blog/category/data) [Flexure Testing](https://labscubed.com/blog/category/flexure-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Testing Standards](https://labscubed.com/blog/category/testing-standards) [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ## Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ## Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Universal testing machine for rubber - LabsCubed benchtop tester and a specimen tray being loaded by hand](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-for-rubber-buyers-guide/6a6c62dd54cb89fa0482971a_Thumbnail--20Universal-20Testing-20Machine-20for-20Rubber-20LabsCubed-20Blog.webp?width=800&quality=75) Lab Automation 9 min read ## Universal Testing Machine for Rubber: 2026 Buyer Guide Choose a universal testing machine for rubber: grips, force ranges, and automated workflows that cut variability. See how LabsCubed automates rubber QA.](https://labscubed.com/post/universal-testing-machine-for-rubber-buyers-guide)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ## Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation)[![Polymer mechanical testing methods and standards](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-mechanical-testing-methods-standards-automation/thumb-polymer-mechanical-testing.webp?width=800&quality=75) Testing Standards Lab Automation 9 min read ## Polymer Mechanical Testing: Methods, Standards & Automation Learn polymer mechanical testing methods, ASTM standards, and how automated systems like LabsCubed's Cube reduce variability in plastics and rubber QA labs.](https://labscubed.com/post/polymer-mechanical-testing-methods-standards-automation)[![Lab automation robotics thumbnail for plastics and rubber QA](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/lab-automation-robotics-for-plastics-rubber-qa-teams/thumb-lab-automation-robotics.webp?width=800&quality=75) Lab Automation 9 min read ## Lab Automation Robotics for Plastics and Rubber QA Teams Robotic lab automation is changing how plastics and rubber QA labs operate. Learn how to automate ASTM tests, cut variability, and scale testing throughput.](https://labscubed.com/post/lab-automation-robotics-for-plastics-rubber-qa-teams)[![Composite Material Testing: Methods, Standards, and Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/composite-material-testing/Composite-Compression-Test---LabsCubed.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ## Composite Material Testing: Methods, Standards, and Automation Learn the key composite material testing methods, ASTM standards, and how automation improves throughput, repeatability, and data quality.](https://labscubed.com/post/composite-material-testing)[![Tensile Testing Machine Guide for Plastics & Rubber Labs](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-testing-machine/Thumbnail---Tensile-Testing-Machine-Guide---LABSCUBED2.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ## Tensile Testing Machine Guide for Plastics & Rubber Labs Learn how to choose the right tensile testing machine for plastics and rubber, and how automation improves throughput and repeatability.](https://labscubed.com/post/tensile-testing-machine)[![Automated ASTM D638 tensile testing system for plastics labs](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/astm-d638-automated-testing-run-3x-more-per-day/thumb-astm-d638-automated-testing.webp?width=800&quality=75) Tensile Testing Lab Automation 4 min read ## ASTM D638 Automated Testing: Run 3× More Specimens Per Day Learn how automated ASTM D638 testing systems help plastics labs triple specimen throughput, eliminate grip errors, and run tests unattended overnight.](https://labscubed.com/post/astm-d638-automated-testing-run-3x-more-per-day)[![Automated rubber tensile testing machine holding a rubber dumbbell specimen above a tray of specimens](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/automated-rubber-tensile-testing-machine/automated-rubber-tensile-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ## Automated Rubber Tensile Testing Machines: A Guide for High-Volume Testing Labs Learn how automated rubber tensile testing machines improve throughput, repeatability, and ASTM D412 compliance in modern testing laboratories.](https://labscubed.com/post/automated-rubber-tensile-testing-machine)[![Robotic Material Testing: The Complete Guide to Automating Your Lab](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/robotic-material-testing/Thumbnail--Rubber-Testing-CubeOne-Machine--LabsCubed-Blog.webp?width=800&quality=75) Tensile Testing Lab Automation 7 min read ## Robotic Material Testing: The Complete Guide to Automating Your Lab Learn how robotic material testing improves throughput, repeatability, and data traceability in plastics, rubber, and composite laboratories.](https://labscubed.com/post/robotic-material-testing)[![Materials testing automation for plastics and rubber labs with robotic tensile testing](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/materials-testing-automation-guide/thumb.webp?width=800&quality=75) Lab Automation 4 min read ## Materials Testing Automation: How Plastics and Rubber Labs Run 3× More Tests Per Shift Discover how materials testing automation helps plastics and rubber labs reduce manual errors, triple throughput, and meet ASTM standards — without adding headcount.](https://labscubed.com/post/materials-testing-automation-guide)[![Automated Tensile Testing: How Labs Cut Cycle Time Up to 85%](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/automated-tensile-testing/Thumbnail--LABSCUBED-Automated-Tensile-Testing-Machines-CubeOne---LABSCUBED-Blog.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ## Automated Tensile Testing: How Labs Cut Cycle Time Up to 85% Learn how automated tensile testing improves throughput, repeatability, and data traceability in plastics, rubber, and composite testing labs.](https://labscubed.com/post/automated-tensile-testing)[![Fatigue Testing in Rubber Compounds: Understanding Long-Term Performance](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/fatigue-testing-in-rubber-compounds-understanding-long-term-performance/Fatigue-Testing-in-Rubber_Compounds_Understanding-Long-Term-Performance.webp?width=800&quality=75) Lab Automation 10 min read ## Fatigue Testing in Rubber Compounds: Understanding Long-Term Performance Explore the fundamentals of fatigue testing for rubber compounds, from traditional to 3D printed materials. A guide for materials engineers and lab managers on ensuring long-term performance and durability.](https://labscubed.com/post/fatigue-testing-in-rubber-compounds-understanding-long-term-performance)[![What is Tensile Testing & Why it Matters in Materials Labs](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/what-is-tensile-testing-and-why-it-matters/Screenshot-2025-07-07-at-3.21.20-PM.png?width=800&quality=75) Lab Automation 8 min read ## What is Tensile Testing & Why it Matters in Materials Labs This article introduces tensile testing, its applications, common laboratory challenges, and practical solutions for obtaining accurate results.](https://labscubed.com/post/what-is-tensile-testing-and-why-it-matters) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Tensile Testing" description: "Tensile Testing articles from LabsCubed — automated materials testing, standards and lab workflow guidance." url: https://labscubed.com/blog/category/tensile-testing --- # Tensile Testing 10 articles [All](https://labscubed.com/blog) [Data](https://labscubed.com/blog/category/data) [Flexure Testing](https://labscubed.com/blog/category/flexure-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Testing Standards](https://labscubed.com/blog/category/testing-standards) [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ## Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ## Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ## Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation)[![Composite Material Testing: Methods, Standards, and Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/composite-material-testing/Composite-Compression-Test---LabsCubed.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ## Composite Material Testing: Methods, Standards, and Automation Learn the key composite material testing methods, ASTM standards, and how automation improves throughput, repeatability, and data quality.](https://labscubed.com/post/composite-material-testing)[![Tensile Testing Machine Guide for Plastics & Rubber Labs](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-testing-machine/Thumbnail---Tensile-Testing-Machine-Guide---LABSCUBED2.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ## Tensile Testing Machine Guide for Plastics & Rubber Labs Learn how to choose the right tensile testing machine for plastics and rubber, and how automation improves throughput and repeatability.](https://labscubed.com/post/tensile-testing-machine)[![Plastics tensile testing equipment thumbnail - LabsCubed CubeTen automated system](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/how-to-choose-plastics-tensile-testing-equipment/thumb-plastics-tensile-testing-equipment.webp?width=800&quality=75) Tensile Testing Testing Standards 4 min read ## How to Choose Plastics Tensile Testing Equipment A practical guide for QA labs on choosing plastics tensile testing equipment—covering force range, grips, standards, and when automation pays off.](https://labscubed.com/post/how-to-choose-plastics-tensile-testing-equipment)[![Automated ASTM D638 tensile testing system for plastics labs](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/astm-d638-automated-testing-run-3x-more-per-day/thumb-astm-d638-automated-testing.webp?width=800&quality=75) Tensile Testing Lab Automation 4 min read ## ASTM D638 Automated Testing: Run 3× More Specimens Per Day Learn how automated ASTM D638 testing systems help plastics labs triple specimen throughput, eliminate grip errors, and run tests unattended overnight.](https://labscubed.com/post/astm-d638-automated-testing-run-3x-more-per-day)[![Automated rubber tensile testing machine holding a rubber dumbbell specimen above a tray of specimens](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/automated-rubber-tensile-testing-machine/automated-rubber-tensile-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ## Automated Rubber Tensile Testing Machines: A Guide for High-Volume Testing Labs Learn how automated rubber tensile testing machines improve throughput, repeatability, and ASTM D412 compliance in modern testing laboratories.](https://labscubed.com/post/automated-rubber-tensile-testing-machine)[![Robotic Material Testing: The Complete Guide to Automating Your Lab](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/robotic-material-testing/Thumbnail--Rubber-Testing-CubeOne-Machine--LabsCubed-Blog.webp?width=800&quality=75) Tensile Testing Lab Automation 7 min read ## Robotic Material Testing: The Complete Guide to Automating Your Lab Learn how robotic material testing improves throughput, repeatability, and data traceability in plastics, rubber, and composite laboratories.](https://labscubed.com/post/robotic-material-testing)[![Automated Tensile Testing: How Labs Cut Cycle Time Up to 85%](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/automated-tensile-testing/Thumbnail--LABSCUBED-Automated-Tensile-Testing-Machines-CubeOne---LABSCUBED-Blog.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ## Automated Tensile Testing: How Labs Cut Cycle Time Up to 85% Learn how automated tensile testing improves throughput, repeatability, and data traceability in plastics, rubber, and composite testing labs.](https://labscubed.com/post/automated-tensile-testing) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Testing Standards" description: "Testing Standards articles from LabsCubed — automated materials testing, standards and lab workflow guidance." url: https://labscubed.com/blog/category/testing-standards --- # Testing Standards 5 articles [All](https://labscubed.com/blog) [Data](https://labscubed.com/blog/category/data) [Flexure Testing](https://labscubed.com/blog/category/flexure-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Testing Standards](https://labscubed.com/blog/category/testing-standards) [![Tensile test of composite materials - carbon fibre specimen clamped in tensile grips in a materials testing lab](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-test-of-composite-materials-practical-guide/6a6c86479be977e6ac041dc4_Thumb--20Tensile-20Test-20of-20Composite-20Materials-20--20LabsCubed-20Blog.webp?width=800&quality=75) Testing Standards 9 min read ## Tensile Test of Composite Materials: A Practical Guide Tensile test of composite materials made simple: specimen prep, fixtures, standards, and how automation cuts variability. See the guide and run cleaner tests.](https://labscubed.com/post/tensile-test-of-composite-materials-practical-guide)[![ASTM D3039: How to Test Composite Tensile Properties](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/astm-d3039-composite-tensile-testing-automation/Thumb--ASTM-3039M-Standard---LabsCubed-Blog.webp?width=800&quality=75) Testing Standards 9 min read ## ASTM D3039: How to Test Composite Tensile Properties ASTM D3039 measures composite tensile properties. See specimen prep, grips, automation, and how Cube cuts variability. Get a demo from LabsCubed today.](https://labscubed.com/post/astm-d3039-composite-tensile-testing-automation)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ## Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation)[![Polymer mechanical testing methods and standards](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-mechanical-testing-methods-standards-automation/thumb-polymer-mechanical-testing.webp?width=800&quality=75) Testing Standards Lab Automation 9 min read ## Polymer Mechanical Testing: Methods, Standards & Automation Learn polymer mechanical testing methods, ASTM standards, and how automated systems like LabsCubed's Cube reduce variability in plastics and rubber QA labs.](https://labscubed.com/post/polymer-mechanical-testing-methods-standards-automation)[![Plastics tensile testing equipment thumbnail - LabsCubed CubeTen automated system](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/how-to-choose-plastics-tensile-testing-equipment/thumb-plastics-tensile-testing-equipment.webp?width=800&quality=75) Tensile Testing Testing Standards 4 min read ## How to Choose Plastics Tensile Testing Equipment A practical guide for QA labs on choosing plastics tensile testing equipment—covering force range, grips, standards, and when automation pays off.](https://labscubed.com/post/how-to-choose-plastics-tensile-testing-equipment) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Page 2" description: "Here, you'll find comprehensive articles and resources on tensile testing and laboratory automation. We share insights on how to implement automated solutions to save time, achieve higher data consistency, and effectively minimize human error in your lab operations." url: https://labscubed.com/blog/page/2 --- # LabsCubed Knowledge Hub Here, you'll find comprehensive articles and resources on tensile testing and laboratory automation. We share insights on how to implement automated solutions to save time, achieve higher data consistency, and effectively minimize human error in your lab operations. [![Automated ASTM D638 tensile testing system for plastics labs](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/astm-d638-automated-testing-run-3x-more-per-day/thumb-astm-d638-automated-testing.webp?width=800&quality=75) Tensile Testing Lab Automation 4 min read ## ASTM D638 Automated Testing: Run 3× More Specimens Per Day Learn how automated ASTM D638 testing systems help plastics labs triple specimen throughput, eliminate grip errors, and run tests unattended overnight.](https://labscubed.com/post/astm-d638-automated-testing-run-3x-more-per-day)[![Automated rubber tensile testing machine holding a rubber dumbbell specimen above a tray of specimens](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/automated-rubber-tensile-testing-machine/automated-rubber-tensile-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ## Automated Rubber Tensile Testing Machines: A Guide for High-Volume Testing Labs Learn how automated rubber tensile testing machines improve throughput, repeatability, and ASTM D412 compliance in modern testing laboratories.](https://labscubed.com/post/automated-rubber-tensile-testing-machine)[![Robotic Material Testing: The Complete Guide to Automating Your Lab](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/robotic-material-testing/Thumbnail--Rubber-Testing-CubeOne-Machine--LabsCubed-Blog.webp?width=800&quality=75) Tensile Testing Lab Automation 7 min read ## Robotic Material Testing: The Complete Guide to Automating Your Lab Learn how robotic material testing improves throughput, repeatability, and data traceability in plastics, rubber, and composite laboratories.](https://labscubed.com/post/robotic-material-testing)[![Materials testing automation for plastics and rubber labs with robotic tensile testing](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/materials-testing-automation-guide/thumb.webp?width=800&quality=75) Lab Automation 4 min read ## Materials Testing Automation: How Plastics and Rubber Labs Run 3× More Tests Per Shift Discover how materials testing automation helps plastics and rubber labs reduce manual errors, triple throughput, and meet ASTM standards — without adding headcount.](https://labscubed.com/post/materials-testing-automation-guide)[![Automated Tensile Testing: How Labs Cut Cycle Time Up to 85%](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/automated-tensile-testing/Thumbnail--LABSCUBED-Automated-Tensile-Testing-Machines-CubeOne---LABSCUBED-Blog.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ## Automated Tensile Testing: How Labs Cut Cycle Time Up to 85% Learn how automated tensile testing improves throughput, repeatability, and data traceability in plastics, rubber, and composite testing labs.](https://labscubed.com/post/automated-tensile-testing)[![Fatigue Testing in Rubber Compounds: Understanding Long-Term Performance](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/fatigue-testing-in-rubber-compounds-understanding-long-term-performance/Fatigue-Testing-in-Rubber_Compounds_Understanding-Long-Term-Performance.webp?width=800&quality=75) Lab Automation 10 min read ## Fatigue Testing in Rubber Compounds: Understanding Long-Term Performance Explore the fundamentals of fatigue testing for rubber compounds, from traditional to 3D printed materials. A guide for materials engineers and lab managers on ensuring long-term performance and durability.](https://labscubed.com/post/fatigue-testing-in-rubber-compounds-understanding-long-term-performance)[![ASTM D790/ISO 178 Explained: Everything You Need to Know About Plastic Flexural Testing](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/astm-d790-iso-178-explained-everything-you-need-to-know-about-plastic-flexural-testing/cubeflex-testing-machine-flexure-bending-labscubed.webp?width=800&quality=75) Flexure Testing 5 min read ## ASTM D790/ISO 178 Explained: Everything You Need to Know About Plastic Flexural Testing Mastering ASTM D790 & ISO 178: Why the Future of Flexural Testing is Horizontal Stop wasting time on manual grip changes and calibration. Learn the essentials of plastic flexural testing and discover how CubeFlex is revolutionizing the lab with automated, horizontal 3-point bending.](https://labscubed.com/post/astm-d790-iso-178-explained-everything-you-need-to-know-about-plastic-flexural-testing)[![Understanding the Numbers: Tensile Data Collection and Saving Time with Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-data-collection-and-saving-time-with-automation/Screenshot-2025-07-18-at-2.02.04-PM.png?width=800&quality=75) Data 7 min read ## Understanding the Numbers: Tensile Data Collection and Saving Time with Automation This article explains the importance of understanding and utilizing tensile testing data for better material selection. It highlights how raw test data, particularly the stress-strain curve, provides crucial material properties like ultimate tensile strength, yield strength, elongation at break, and Young's Modulus.](https://labscubed.com/post/tensile-data-collection-and-saving-time-with-automation)[![What is Tensile Testing & Why it Matters in Materials Labs](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/what-is-tensile-testing-and-why-it-matters/Screenshot-2025-07-07-at-3.21.20-PM.png?width=800&quality=75) Lab Automation 8 min read ## What is Tensile Testing & Why it Matters in Materials Labs This article introduces tensile testing, its applications, common laboratory challenges, and practical solutions for obtaining accurate results.](https://labscubed.com/post/what-is-tensile-testing-and-why-it-matters) [← Newer](https://labscubed.com/blog) Page 2 of 2 ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Developers & AI agents | LabsCubed" description: "How software and AI agents can read labscubed.com and act on it: the public quote and registration API, Markdown for every page, llms.txt, agent skills and WebMCP tools." url: https://labscubed.com/developers --- Developers & AI agents # Build on labscubed.com Everything on this site is readable by machines, and the two actions a visitor can take — asking for a quote and registering for an event — are open APIs. Both create a sales contact, so only call them with the person's explicit consent. ## Public API Described in full in [/openapi.json](https://labscubed.com/openapi.json). No key or authentication is needed. ### Request a quote ``` POST https://grozewxrymeiruhggcdy.supabase.co/functions/v1/quote-request Content-Type: application/json {"first":"Ada","last":"Lovelace","email":"ada@example-polymers.com","country":"CA","company":"Example Polymers","otherSample":"ASTM D638 Type I","dailyVolume":"20–50","source":"agent"} ``` Required: `first`, `last`, `email`, `country` (ISO 3166-1 alpha-2). Returns `200 {"success":true}`, or `422` with an `error` message. Set `source` to `"agent"` when submitting on someone's behalf. ### Register for a webinar or trade-show demo `POST /api/webinar/register` with `name`, `email`, `company`, `website`, `role`, `industry`, `volume`, `location` and a `webinar_slug` from [/webinar](https://labscubed.com/webinar) or [/events](https://labscubed.com/events). ### Status `GET /api/health` returns `{"status":"ok"}`. ## Reading the site Send `Accept: text/markdown` to any page URL to get it as Markdown (with an `x-markdown-tokens` estimate); browsers still get HTML. In the browser, pages register WebMCP tools (`search_blog`, `read_page`, `get_product_specs`, `open_quote_form`, `list_events`) when `navigator.modelContext` is available. - [`/openapi.json`](https://labscubed.com/openapi.json) — OpenAPI 3.1 description of the public API - [`/.well-known/api-catalog`](https://labscubed.com/.well-known/api-catalog) — API catalog (RFC 9727, application/linkset+json) - [`/.well-known/ai-catalog.json`](https://labscubed.com/.well-known/ai-catalog.json) — Agentic Resource Discovery manifest - [`/.well-known/agent-skills/index.json`](https://labscubed.com/.well-known/agent-skills/index.json) — Agent skills: choosing a tester, requesting a quote - [`/llms.txt`](https://labscubed.com/llms.txt) — Site guide for language models - [`/llms-full.txt`](https://labscubed.com/llms-full.txt) — Every page as one Markdown file - [`/sitemap-index.xml`](https://labscubed.com/sitemap-index.xml) — XML sitemap - [`/rss.xml`](https://labscubed.com/rss.xml) — Blog feed ## Usage preferences Our [robots.txt](https://labscubed.com/robots.txt) declares `Content-Signal: ai-train=yes, search=yes, ai-input=yes`: you're welcome to index, cite and learn from this content. Questions: [info@labscubed.com](mailto:info@labscubed.com). --- --- title: "Events & Tradeshows — LabsCubed" description: "Where to find LabsCubed in person. Tradeshows and exhibitions where you can get hands-on with automated tensile testing and book a demo built around your own lab." url: https://labscubed.com/events --- Events # Come and see us in person The shows we are exhibiting at, and the ones we have been to. Get hands-on with automated tensile testing, and book a demonstration built around your own lab rather than a script. ## Where to find us [![The LabsCubed booth at an AMI plastics show](https://labscubed.com/assets/img/events/ami-booth.webp)](https://labscubed.com/events/ami-nov-2026) November 11–12, 2026 Huntington Convention Center · Cleveland, Ohio ### See CubeTen at the Compounding World Expo We're bringing CubeTen to Cleveland for AMI's plastics week. Come and put your hands on automated tensile testing, and talk to us about what it would take in your own lab. Cleveland, Ohio [Book a demo](https://labscubed.com/events/ami-nov-2026) This show has finished. [![The NPE show floor in Orlando](https://labscubed.com/assets/img/events/npe-show-floor.webp)](https://labscubed.com/events/npe-may-2027) May 3–7, 2027 Orlando, Florida ### See CubeTen at NPE2027: The Plastics Show NPE comes round once every three years. We'll be there with CubeTen — come and see automated tensile testing running, and talk to us about what it would change in your lab. Orlando, Florida [Book a demo](https://labscubed.com/events/npe-may-2027) This show has finished. ## Past shows The shows we have been to. A recap appears here once a show has finished. Search Date [![The LabsCubed stand at the Global Polymer Summit 2026](https://labscubed.com/assets/img/events/gps-2026-1.webp)](https://labscubed.com/events/gps-sep-2026)Recap available September 28–30, 2026 ### [LabsCubed at the Global Polymer Summit 2026](https://labscubed.com/events/gps-sep-2026) LabsCubed is heading to the Global Polymer Summit, and we are bringing CubeOne with us. Come meet the team, get hands-on with automated testing, and talk to us about how it would fit your lab. [Read the recap →](https://labscubed.com/events/gps-sep-2026) No shows match that search. Try a different keyword or date. --- --- title: "See CubeTen at the Compounding World Expo 2026 — Cleveland" description: "LabsCubed is at AMI's Plastics World Expos in Cleveland, Nov 11–12 2026. See CubeTen automated tensile testing and book a demo for your own lab." url: https://labscubed.com/events/ami-nov-2026 --- --- --- title: "Your CubeTen Demo Is Booked — Compounding World Expo 2026" description: "Your CubeTen demonstration at the Compounding World Expo is booked. Huntington Convention Center, Cleveland, November 11–12 2026." url: https://labscubed.com/events/ami-nov-2026/thank-you --- --- --- title: "LabsCubed at the Global Polymer Summit 2026 — Event Recap" description: "What we showed at the Global Polymer Summit 2026 in Louisville: CubeOne live at booth 815, what rubber labs told us, and our panel on AI in testing." url: https://labscubed.com/events/gps-sep-2026 --- --- --- title: "See CubeTen at NPE2027: The Plastics Show — Orlando" description: "LabsCubed is exhibiting at NPE2027 in Orlando, May 3–7 2027. Get hands-on with CubeTen automated tensile testing and book a demo built around your own lab." url: https://labscubed.com/events/npe-may-2027 --- --- --- title: "Your CubeTen Demo Is Booked — NPE2027" description: "Your CubeTen demonstration at NPE2027 is booked. Orlando, Florida, May 3–7 2027." url: https://labscubed.com/events/npe-may-2027/thank-you --- --- --- title: "Get a Quote — LabsCubed" description: "Tell us about your lab in a few short steps. A LabsCubed specialist gets in touch within one business day to understand how you test, talk through your testing routine and find the best option for your lab." url: https://labscubed.com/get-a-quote --- Get a quote # Tell us about your lab. We'll take it from there. A few short steps — your details, your lab and how much you test. Specimen types are optional: if you need to check them with your team, send the request anyway. A specialist follows up to talk through your testing routine and find the best option for your lab — your quote comes from that conversation. 01 Step ## Who should we get in touch with? A LabsCubed specialist gets back to you within one business day to understand your testing and build your quote from there. Pick your country first so we get the phone format and the local service team right. First name \*Last name \*Business email \* Country \* Phone number Step 1 of 5 Continue What happens next 1 A specialist reviews your answers Within one business day. 2 We talk through your testing routine Specimens, standards, volumes and where the bottlenecks are. 3 You get a recommendation and quote Built around what we learn together — not a catalogue pick. Contact — Email — Phone — Company — Lab site — Daily volume — Prefer to talk [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON · Mon–Fri, 9–5 ET One business day A specialist — not a call centre — gets in touch to understand your testing. ROI before purchase Your throughput becomes a payback estimate, typically 18–24 months. White-glove install On-site installation, ASTM calibration and team training included. ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. 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All rights reserved. --- --- title: "Plastic Tensile Testing Machines | LabsCubed CubeTen" description: "Streamline plastic material testing with the LabsCubed CubeTen automated tensile testing machine — up to 15 specimens tested unattended to ASTM D638 and ISO 527, plus single lap shear and T-peel adhesive tests." url: https://labscubed.com/plastic-testing --- CubeTen · Plastic testing # The plastic tensile testing machine, revolutionized. The CubeTen loads, measures, grips and pulls up to 15 plastic specimens unattended — ASTM D638 and ISO 527 results your whole lab can trust. [Get a Quote](https://labscubed.com/get-a-quote) See what it tests Specimens the CubeTen tests ![ASTM D638](https://labscubed.com/assets/img/standards/astm-logo.webp) Type I ASTM D638 Automated Plastic Tensile Testing ![ASTM D638](https://labscubed.com/assets/img/standards/astm-logo.webp) Type II ASTM D638 Automated Plastic Tensile Testing ![ASTM D638](https://labscubed.com/assets/img/standards/astm-logo.webp) Type IV ASTM D638 Automated Plastic Tensile Testing ![ISO 527-2](https://labscubed.com/assets/img/standards/iso-logo.webp) Type 1A ISO 527-2 Automated Plastic Tensile Testing ![ISO 527-2](https://labscubed.com/assets/img/standards/iso-logo.webp) Type 1B ISO 527-2 Automated Plastic Tensile Testing Explore the full specimen library ![ASTM D638](https://labscubed.com/assets/img/standards/astm-logo.webp) Type I ASTM D638 Automated Plastic Tensile Testing ![ASTM D638](https://labscubed.com/assets/img/standards/astm-logo.webp) Type II ASTM D638 Automated Plastic Tensile Testing ![ASTM D638](https://labscubed.com/assets/img/standards/astm-logo.webp) Type IV ASTM D638 Automated Plastic Tensile Testing ![ISO 527-2](https://labscubed.com/assets/img/standards/iso-logo.webp) Type 1A ISO 527-2 Automated Plastic Tensile Testing ![ISO 527-2](https://labscubed.com/assets/img/standards/iso-logo.webp) Type 1B ISO 527-2 Automated Plastic Tensile Testing See all samples ## Built to remove every variable. The CubeTen is a user-friendly automated testing machine designed specifically for plastics and adhesives. ### Recover lab time Load the tray and walk away — the CubeTen saves up to 95% of your team's testing time for higher-value work. ### Optimize your lab Maximize ROI while accelerating lab results and making better use of every technician hour. ### Ensure data consistency Automated testing delivers up to 40% more consistent results, proven by extensive studies. Specimen library ### Every plastic specimen the CubeTen tests. ASTM D638 and ISO 527-2 geometries — select one to see its dimensions. The same machine also runs DIN and JIS tensile methods, plus single lap shear and T-peel adhesive tests, with no modifications. ASTM D638 Type I Tensile Standard rigid-plastic tensile bar — the most common geometry. Overall 165 mm Gauge 50 mm Narrow W 13 mm Thickness 3.2 mm ![ASTM D638](https://labscubed.com/assets/img/standards/astm-logo-ink.webp) ASTM D638 Type I Automated plastic tensile testing to ASTM D638 — loaded, gripped and measured unattended, end to end. ## Trusted by quality teams worldwide. Real words from polymer and elastomer labs running LabsCubed automation every day. > “We've added the CubeOne to our quality department. This allowed for better repeatability of the measurements and gave the technician time to perform other tasks during each test sequence. The LabsCubed team was very responsive in adapting the interface with our other systems.” Jean-Damien R&D Laboratory Chemist · Quebec, Canada ![Soucy Techno](https://labscubed.com/assets/img/testimonials/logo-soucy.webp) ![Technician loading specimens onto a LabsCubed tray](https://labscubed.com/assets/img/plastic-testing/stats-bg.webp) Real test · Polypropylene ## Watch a real CubeTen test, synced to its data. Specimen 01 of a 10-specimen polypropylene run. The CubeTen pulls slowly at 1 mm/min to capture modulus, then switches to 50 mm/min until break — follow the speed as the point climbs the curve. Crosshead speed 1.0 mm/min **Modulus phase** · Slow pull at 1 mm/min until 0.3% strain Speed over the test 1 mm/min 50 mm/min Video time 0.0 s Strain 0.00 % Stress 0.00 MPa 10 Specimens tested All 10 pulled to break, no aborts 0.25% Yield stress CV mean 25.63 MPa 1.33% Break strain CV mean 295.45% 1.52% Chord modulus CV mean 1,147 MPa | Property | Mean | ± SD | CV | Min | Max | | --- | --- | --- | --- | --- | --- | | Yield stress MPa | 25.63 | 0.06 | 0.25% | 25.54 | 25.75 | | Elongation at yield % | 7.20 | 0.21 | 2.88% | 6.73 | 7.42 | | Tensile strength (max stress) MPa | 25.63 | 0.06 | 0.25% | 25.54 | 25.75 | | Strain at max stress % | 7.20 | 0.21 | 2.88% | 6.73 | 7.42 | | Break stress MPa | 20.78 | 0.78 | 3.77% | 19.50 | 22.21 | | Break strain % | 295.45 | 3.92 | 1.33% | 291.03 | 303.05 | | Modulus (chord) MPa | 1,146.9 | 17.4 | 1.52% | 1,116.6 | 1,173.7 | | Modulus (auto) MPa | 1,312.1 | 11.9 | 0.91% | 1,297.6 | 1,336.1 | | Offset yield stress (0.2%) MPa | 17.87 | 0.13 | 0.73% | 17.66 | 18.08 | | Offset yield strain (0.2%) % | 1.76 | 0.03 | 1.88% | 1.72 | 1.81 | ## Load, configure, press start. Done. Three steps from specimen to results — each one a short loop of the real machine. 01 ### Load your samples Load up to 15 tensile specimens at once — mix compounds and materials on the same tray. 02 ### Start the test Enter compound names on the touchscreen and start the run with a single touch. 03 ### Review your data When the run finishes, review results on the machine touchscreen, in your own system, or in the LabsCubed cloud. ## The numbers that matter. Lead with the outcomes, then check them against the full specification. 95% of technician testing time recovered for higher-value work. 40% more consistent results, proven by extensive studies. 15 tensile specimens loaded and tested in a single run. ### CubeTen specification Key features and performance criteria of the CubeTen. ![CubeTen automated plastic tensile testing machine](https://labscubed.com/assets/img/media/machine-cubeten.webp) Tensile standards ASTM D638 · ISO 527 · DIN · JIS Adhesive tests Single lap shear · T-peel Force (Omega Load Cell) Up to 10 kN Elongation Up to 1000% Sample capacity Up to 15 specimens per run Thickness & width Measured automatically Strain measurement Crosshead · physical or video extensometer Weight 250 lbs (115 kg) ## Download the CubeTen brochure Specs, supported standards and specimen types, and how the CubeTen automates plastic tensile testing, in one PDF. We'll email it to you. Thank you! Your submission has been received! ![LabsCubed CubeTen automated plastic tensile testing machine brochure](https://labscubed.com/assets/img/resources/cubeten-machine.webp) Measurement ## How the CubeTen measures strain accurately Every CubeTen pairs a built-in encoder with calibrated contact and non-contact extensometers, so each plastic is measured by the right method for the material. ![Crosshead Displacement](https://labscubed.com/assets/img/media/crosshead.webp) Built-in · No setup Crosshead Displacement Strain is derived from crosshead travel, read by the servo motor's high-resolution encoder. Always on, with nothing to attach or calibrate per sample. Best for High-throughput runs, elastomers and large elongations that exceed an extensometer’s travel. ![Physical Extensometer](https://labscubed.com/assets/img/media/physical-extensometer.webp) Contact Physical Extensometer A calibrated clip-on gauge grips the specimen and measures elongation directly at the gauge length — the reference method for modulus and yield. Best for ASTM & ISO modulus and yield results that demand the tightest accuracy. ![Video Extensometer](https://labscubed.com/assets/img/media/video-extensometer.webp) Optical · Non-contact Video Extensometer High-speed cameras track contrast marks on the specimen, measuring strain without ever touching it — so nothing slips or loads the sample. Best for Thin films, soft or delicate materials, and strain-to-break measurement. Support ## Frequently asked questions What is the CubeTen? The CubeTen is LabsCubed's automated tensile testing machine for rigid plastics and adhesives. Load up to 15 specimens at once and it measures, grips and pulls each one unattended — with a force capacity of up to 10 kN and elongation up to 1000% — while your team moves on to higher-value work. Which testing standards does the CubeTen support? Tensile testing to ASTM D638 and ISO 527, as well as DIN and JIS methods. The same machine also runs adhesive tests such as Single Lap Shear and T-Peel without requiring any modifications. Which ASTM D638 and ISO 527-2 specimen types can it test? All five ASTM D638 geometries — Type I for rigid plastics, Type II for materials that won't break as a Type I, Type III for thick sections up to 14 mm, Type IV for thin plastics and comparisons of different rigidity, and Type V micro-tensile specimens — plus ISO 527-2 Type 1A multipurpose moulded and Type 1B machined specimens. What types of plastics can the CubeTen test? A wide range of polymers tested at ambient temperature, including PP, HDPE, PVC, ABS, Polycarbonate (PC), Nylon (PA), POM, PBT and TPU, as well as thermosets such as epoxy and phenolic resins. Do I need an extensometer for ASTM D638? An extensometer is required whenever modulus or strain values are reported. Crosshead displacement is acceptable for basic elongation checks, but it includes machine compliance and will overstate strain. The CubeTen supports crosshead displacement, an automated physical extensometer, and a video extensometer. How does automation improve plastic tensile test repeatability? Manual positioning, gauge marking and clamping are the main sources of test-to-test variation. The CubeTen measures width and thickness with calibrated sensors, auto-aligns each specimen in the grips and applies a consistent gripping force, so the operator is removed from the result — delivering up to 40% more consistent data. Is the CubeTen right for my lab's testing volume? The CubeTen is built for Lab Managers, Quality Directors and R&D Engineers at plastics compounders and processors with medium-to-high testing volumes — typically facilities running 10 or more plastic tensile tests per day. What is the typical ROI for a CubeTen? Most customers achieve a full return on investment in 18–24 months, driven by recovering up to 95% of technician testing time and by reducing costly scrap and rework through eliminating operator-induced variability. How do I access and visualize my test data? Every test delivers stress-strain curves, shear and peel data, and in-depth raw data for each specimen. Results can be reviewed on the machine's touchscreen or in the cloud-based LabsCubed Portal, and our software team integrates directly with your existing systems, including Alpha Workbench, Uncountable, SAP and other LIMS/ERP platforms. What is the difference between the CubeTen and the CubeOne? The CubeTen is engineered for rigid plastics and high-strength materials, with up to 10 kN of force and support for adhesive tests like Single Lap Shear and T-Peel. The CubeOne is built for rubber and elastomers, with up to 1 kN of force and optimized for high-elongation materials. Does the horizontal design affect accuracy compared to vertical UTMs? No. LabsCubed has 10 years of comparative test data showing that our horizontal orientation delivers results identical to traditional vertical machines. The design is what enables high-speed robotic loading, and each system is precision-calibrated so gravity and friction have no impact on load readings. At what temperature does the CubeTen test? The CubeTen is optimized for high-throughput testing at standard laboratory ambient temperatures. We do not currently support extreme high- or low-temperature testing, such as environmental chambers. What does onboarding and support look like? We offer a white-glove setup: a LabsCubed specialist performs on-site installation, calibration to ASTM standards and team training. After installation, we provide prompt remote support and annual on-site calibration services to keep your CubeTen at peak performance. ## Ready to automate your plastics lab? Get a tailored CubeTen quote for your testing standards and daily volume. --- --- title: "Blog LabsCubed | ASTM D3039: How to Test Composite Tensile Properties" description: "ASTM D3039 measures composite tensile properties. See specimen prep, grips, automation, and how Cube cuts variability. Get a demo from LabsCubed today." url: https://labscubed.com/post/astm-d3039-composite-tensile-testing-automation --- ![ASTM D3039: How to Test Composite Tensile Properties](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/astm-d3039-composite-tensile-testing-automation/Cover---ASTM-3039M-Standard---LabsCubed-Blog.webp?width=1280&quality=75) # ASTM D3039: How to Test Composite Tensile Properties [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) ASTM D3039: How to Test Composite Tensile Properties [Testing Standards](https://labscubed.com/blog/category/testing-standards) August 13, 2026 9 min **ASTM D3039/D3039M** is the standard test method for the in-plane tensile properties of polymer matrix composite materials reinforced by high-modulus fibers — carbon, fiberglass, and aramid laminates. It defines specimen geometry, conditioning, grip alignment, strain measurement, and reporting so that ultimate tensile strength, modulus, and Poisson's ratio can be compared across labs. The current revision is D3039/D3039M-17(2025), maintained by ASTM Committee D30 on Composite Materials. At LabsCubed we run D3039 on automated platforms — **CubeTen** and **CubeOne** — because composites magnify every manual mistake, and operator-to-operator variability is typically where most reported scatter comes from. In this guide you'll learn what ASTM D3039 measures, how specimen and grip choices change the result, the most common mistakes that flag a retest, and how automating the workflow reduces variability across operators and shifts. ## What is ASTM D3039? ASTM D3039 is the standard test method for measuring the in-plane tensile properties of polymer matrix composites reinforced by continuous, high-modulus fibers. It applies to flat, balanced, symmetric laminates loaded in uniaxial tension and reports ultimate tensile strength, tensile modulus of elasticity, tensile strain at failure, and (when transverse strain is measured) Poisson's ratio. ### What does ASTM D3039 measure? The test produces four core values: ultimate tensile strength (Ftu), Young's modulus (E), tensile strain at failure (εtu), and — when a biaxial extensometer or strain rosette is used — Poisson's ratio (ν). It also requires a documented failure mode code (e.g., LAT, LGM, AGM) so engineers can confirm the failure occurred within the gauge length and not at the grips. ### Which composites does ASTM D3039 cover? D3039 covers polymer matrix composites with high-modulus reinforcement: carbon/epoxy, glass/epoxy, aramid/epoxy, and similar laminates used in aerospace, wind energy, automotive, and pressure-vessel applications. The standard works for unidirectional \[0°\]n, transverse \[90°\]n, balanced symmetric, and quasi-isotropic layups. Discontinuous-fiber composites typically fall under [our broader composite material testing guide](https://labscubed.com/post/composite-material-testing) rather than D3039 specifically. ### What is the difference between ASTM D3039 and ASTM D3039M? The D3039 designation uses inch-pound units; D3039M uses SI metric units. The test method itself is identical — same specimen, same grips, same loading rate, same calculations — only the reported units differ. ASTM publishes the standard as a combined document (D3039/D3039M) and most labs cite both designations together on the test report. ## What specimens does ASTM D3039 require? D3039 specifies rectangular straight-sided coupons cut from the laminate. The standard does not mandate a single geometry; instead it provides recommended dimensions per fiber orientation, and the operator selects a width, thickness, and gauge length that produces a valid gauge-section failure. Specimen tabs may or may not be required depending on grip type and material strength. ### What are the standard specimen sizes for ASTM D3039? Typical recommended geometries follow the laminate orientation: Recommended ASTM D3039 specimen geometries | Laminate | Length | Width | Thickness | Tabs | | --- | --- | --- | --- | --- | | 0° unidirectional | 250 mm | 15 mm | 1.0 mm | Required | | 90° unidirectional | 175 mm | 25 mm | 2.0 mm | Required | | Balanced and symmetric | 250 mm | 25 mm | 2.5 mm | Optional | Length includes the tabbed region. The standard requires a minimum gauge length capable of accommodating the extensometer plus a uniform stress field — usually 100–150 mm. ### When do you need specimen tabs? Tabs distribute the grip load into the laminate so failure occurs in the gauge section, not at the grips. They are required for 0° unidirectional specimens (because raw fiber strength would otherwise crush at the grip face) and strongly recommended for high-strength balanced laminates. Tabs are typically 1–2 mm thick glass/epoxy or aluminum, bonded with film adhesive, with a tab bevel of 5°–90°. A grip slip or grip-induced failure (LAT or LIT codes) invalidates the result. ### Specimen measurement and conditioning Each specimen is measured at three locations along the gauge length with calipers or a micrometer, and the minimum cross-section is used for stress calculations. Per Section 10, specimens are conditioned at 23 °C and 50% relative humidity for at least 40 hours before testing, unless an alternative environment is specified. Skipping conditioning is one of the most common reasons aerospace QA flags a retest. ## How do you run an ASTM D3039 test? A D3039 test loads a tabbed coupon in tension at a constant head speed (typically 2 mm/min) until failure, with continuous load and strain measurement. The lab records ultimate load, stress at failure, modulus from the linear region (between 1,000 and 3,000 µε per Section 13), and the failure mode code. A valid test requires gauge-section failure, recorded environment, and traceable specimen dimensions. ### Grip selection and alignment D3039 calls for wedge or hydraulic grips that apply lateral pressure to the tabs without crushing the laminate. Grip alignment is critical: misalignment of more than ~0.5° introduces bending stress that lowers measured strength by 5–15%. The standard recommends checking alignment with a strain-gauged alignment specimen per ASTM E1012. Most reported lab-to-lab variability on D3039 traces back to this single source. ### Loading rate and strain measurement Standard head displacement is 2 mm/min, producing a typical time-to-failure of 1–10 minutes. Strain is measured with either a clip-on or non-contacting extensometer over a 25–50 mm gauge length. For modulus, the chord between 1,000 µε and 3,000 µε is used. Bonded strain gauges are acceptable but typically reserved for Poisson's ratio measurement using a biaxial rosette. ### Reporting required by D3039 Section 14 specifies the minimum report: material identification, laminate stacking sequence, specimen dimensions (mean and standard deviation), conditioning environment, test temperature and humidity, loading rate, strength and modulus for each specimen plus the mean, standard deviation, and coefficient of variation, and the failure mode code with location. Audit-trail systems should also capture grip torque, alignment check date, and extensometer calibration ID. ## How does manual testing compare to automated ASTM D3039? Manual D3039 testing relies on operator judgment for specimen loading, grip torque, and alignment check — all of which drive lab-to-lab scatter. Automated platforms like CubeTen and CubeOne apply identical grip pressure, identical loading rate, and identical specimen alignment every cycle, which typically reduces coefficient of variation across operators and shifts. The trade-off is upfront integration time; the payoff is repeatability under audit. | Workflow step | Manual D3039 | Recommended CubeOne / CubeTen | | --- | --- | --- | | Specimen loading | Operator-handled; alignment varies between technicians | Robotic pick-and-place from tray; alignment is deterministic | | Grip torque | Hand-torqued or pneumatic; varies by operator | Servo-controlled to a fixed setpoint, logged per specimen | | Alignment check | Performed monthly or quarterly; rarely between operators | Verified against a strain-gauged reference at each shift change | | Conditioning audit | Recorded on paper or spreadsheet | Pulled from environmental log automatically and tied to the specimen ID | | Throughput | Typically 20–40 specimens per day depending on tabbing and conditioning | Up to 3× the manual throughput on a single CubeTen under continuous operation | | Coefficient of variation (typical) | 4–8% on strength, depending on operator | Typically 2–4%, depending on layup and conditioning consistency | | Audit trail | Manual transcription of load, strain, failure code | Specimen ID → raw load/strain trace → failure photo → report, automatically | The systems-level point: automation does not just save time on D3039. It removes the operator-to-operator delta that aerospace QA, wind blade certification, and pressure-vessel acceptance flag during round-robin studies. For a deeper treatment, see our [manual vs. automated testing white paper](https://labscubed.com/white-paper-automation-vs-manual-testing). ## What is the current version of ASTM D3039? The current revision is ASTM D3039/D3039M-17, reapproved in 2025 (cited as D3039/D3039M-17(2025)). It is published by ASTM Committee D30 on Composite Materials, Subcommittee D30.04 on Lamina and Laminate Test Methods. The 2025 reapproval did not change the test method itself; it confirmed the 2017 revision is still current technical practice. ### D3039 revision history The standard was first published as D3039-71. Major revisions include D3039-76 (added the M designation for metric units), D3039-93 (introduced specimen recommendations by fiber orientation), D3039-00 (modernized failure mode codes), D3039-08 (clarified modulus chord), and D3039-14 / -17 (further alignment and reporting clarifications). The current document is one of the most-cited tensile standards in [automated tensile testing](https://labscubed.com/post/automated-tensile-testing) programs. ### Is there an ISO equivalent to ASTM D3039? The closest ISO equivalent is ISO 527-4 and ISO 527-5, which cover tensile properties of isotropic/orthotropic fibre-reinforced plastic composites (Part 4) and unidirectional fibre-reinforced plastic composites (Part 5). The standards are similar in intent but differ in specimen dimensions, grip recommendations, and modulus chord. They are not interchangeable; aerospace QA programs that require D3039 typically do not accept ISO 527 data without a documented correlation study. The plastics equivalent for non-fiber-reinforced specimens is [ASTM D638 / ISO 527 for plastics](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing). ## What are the most common mistakes in ASTM D3039 testing? Most invalid D3039 results trace back to a small set of repeating mistakes — and almost all of them are easier to prevent than to detect after the fact. The list below is what we typically see during onboarding audits at customer labs. 1. **Skipping the alignment check.** Misalignment greater than ~0.5° introduces bending stress that lowers reported strength by 5–15%. Verify against a strain-gauged reference at each shift change, not quarterly. 2. **Inconsistent grip torque.** Hand-torqued grips vary between operators. Use a servo-controlled torque setpoint, log it per specimen, and fail the specimen out if it falls outside the band. 3. **Missing or wrong tabs on 0° unidirectional coupons.** Failure at the grip face (codes LAT or LIT) invalidates the result. Tab geometry and bond quality are not optional for unidirectional carbon. 4. **Skipping conditioning.** 40 hours at 23 °C / 50% RH is non-negotiable in aerospace QA. A conditioned vs. unconditioned coupon can differ by more than 10% in modulus for hygroscopic matrices. 5. **Wrong modulus chord.** Modulus is calculated between 1,000 and 3,000 µε. Using the full linear-elastic region or a fixed strain offset will produce a number that doesn't match the round-robin database. 6. **Single-point caliper measurement.** D3039 requires three measurements along the gauge length with the minimum used in the stress calculation. A tapered specimen with single-point measurement over-reports strength. 7. **Untracked extensometer drift.** A clip-on extensometer that slips during the test produces a falsely high modulus. Use redundant strain measurement on the first specimen of each layup batch. 8. **No failure mode photo.** Without a documented failure mode code and location, an aerospace QA reviewer cannot validate that the test is admissible. The mode goes in the report, not just on a sticky note on the sample. ## How does LabsCubed automate ASTM D3039? CubeTen and CubeOne run the full D3039 workflow end to end: specimens load from a robotic tray, grips close at a logged servo torque, the alignment check runs against an embedded strain-gauged reference at each shift, conditioning environment is pulled from the chamber log and tied to the specimen ID, the test executes at 2 mm/min, and the report — strength, modulus, strain at failure, failure code, raw load/strain trace, and failure photo — writes to the audit trail automatically. The operator's role shifts from running each test to validating the queue and reviewing flagged results. The outcome we typically see during customer pilots: coefficient of variation falls from the 4–8% manual range to 2–4%, and throughput rises to up to 3× on a single CubeTen under continuous operation. The systems-level argument is not about replacing the technician — it is about removing the operator-to-operator delta that aerospace QA and wind blade certification round-robins flag. See our [robotic material testing platform overview](https://labscubed.com/post/robotic-material-testing) for the full hardware and software stack, or [request a CubeTen demo](https://labscubed.com/get-a-quote) to walk through D3039 on real coupons. ## Frequently asked questions What does ASTM D3039 measure in composites? ASTM D3039 measures the in-plane tensile properties of polymer matrix composites reinforced by high-modulus fibers. It reports ultimate tensile strength, tensile modulus of elasticity, tensile strain at failure, and Poisson's ratio when transverse strain is measured. A valid test also reports the failure mode code and location per Section 14. What specimen sizes does ASTM D3039 require? D3039 provides recommended geometries by fiber orientation. Typical sizes are 250 × 15 × 1.0 mm for 0° unidirectional with tabs, 175 × 25 × 2.0 mm for 90° unidirectional with tabs, and 250 × 25 × 2.5 mm for balanced and symmetric laminates. The standard requires a uniform gauge section that accommodates the extensometer, typically 100–150 mm long. What is the current version of ASTM D3039? The current revision is D3039/D3039M-17, reapproved in 2025 and cited as D3039/D3039M-17(2025). The 2025 reapproval confirmed the 2017 technical practice without changing the test method. It is maintained by ASTM Committee D30 on Composite Materials, Subcommittee D30.04. What is the difference between ASTM D3039 and D3039M? D3039 uses inch-pound units; D3039M uses SI units. The specimen, grips, loading rate, and calculations are identical. ASTM publishes the document as a combined standard (D3039/D3039M), and most labs reference both designations together on the test report. Is there an ISO equivalent to ASTM D3039? The closest equivalents are ISO 527-4 (isotropic and orthotropic fibre-reinforced plastic composites) and ISO 527-5 (unidirectional fibre-reinforced plastic composites). They cover similar intent but differ in specimen dimensions, grip recommendations, and modulus chord. Aerospace QA programs that specify D3039 typically do not accept ISO 527 data without a documented correlation study. Can ASTM D3039 testing be automated? Yes. Automated systems like LabsCubed's CubeTen and CubeOne run D3039 end to end — robotic specimen loading, servo-controlled grip torque, per-shift alignment verification, environmental log integration, and automatic report generation. Customers typically see coefficient of variation drop from 4–8% to 2–4% and throughput rise up to 3× on a single platform under continuous operation. ### Run D3039 with repeatability under audit Explore how LabsCubed's CubeTen and CubeOne systems automate specimen handling, grip torque, alignment checks, and reporting to remove operator-to-operator variability from your composite tensile program. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials Testing Automation Specialists, LabsCubed The LabsCubed Team builds robotic, AI-driven systems for plastics, rubber, and composites QA labs. Our engineers have run D3039, D638, D412, and ISO 527 in production lab environments and during round-robin certifications. CubeOne and CubeTen are deployed in production labs across North America and Europe. ## Keep reading [![Tensile test of composite materials - carbon fibre specimen clamped in tensile grips in a materials testing lab](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-test-of-composite-materials-practical-guide/6a6c86479be977e6ac041dc4_Thumb--20Tensile-20Test-20of-20Composite-20Materials-20--20LabsCubed-20Blog.webp?width=800&quality=75) Testing Standards 9 min read ### Tensile Test of Composite Materials: A Practical Guide Tensile test of composite materials made simple: specimen prep, fixtures, standards, and how automation cuts variability. See the guide and run cleaner tests.](https://labscubed.com/post/tensile-test-of-composite-materials-practical-guide)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ### Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation)[![Polymer mechanical testing methods and standards](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-mechanical-testing-methods-standards-automation/thumb-polymer-mechanical-testing.webp?width=800&quality=75) Testing Standards Lab Automation 9 min read ### Polymer Mechanical Testing: Methods, Standards & Automation Learn polymer mechanical testing methods, ASTM standards, and how automated systems like LabsCubed's Cube reduce variability in plastics and rubber QA labs.](https://labscubed.com/post/polymer-mechanical-testing-methods-standards-automation) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | ASTM D638 Automated Testing: Run 3× More Specimens Per Day" description: "Learn how automated ASTM D638 testing systems help plastics labs triple specimen throughput, eliminate grip errors, and run tests unattended overnight." url: https://labscubed.com/post/astm-d638-automated-testing-run-3x-more-per-day --- ![Automated ASTM D638 tensile testing lab with robotic specimen handling](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/astm-d638-automated-testing-run-3x-more-per-day/cover-astm-d638-automated-testing.webp?width=1280&quality=75) # ASTM D638 Automated Testing: Run 3× More Specimens Per Day [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) ASTM D638 Automated Testing: Run 3× More Specimens Per Day [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) June 11, 2026 4 min Plastics labs running manual ASTM D638 tests typically process 20–30 specimens per operator per day. Switch to a fully automated system, and that same lab can run 60–90 specimens — with fewer errors and no operator standing at the machine for hours. That is the practical case for automated ASTM D638 testing. Not hype. Numbers. 3x more specimens per day, up to Manual D638 testing tops out around 20–30 specimens per operator per day. A fully automated workflow can reach 60–90 by removing the operator from the repetitive loading loop entirely. ## What manual ASTM D638 testing costs your lab Every manual D638 test follows the same sequence: load a specimen, attach an extensometer, start the test, remove the failed specimen, log the data, repeat. It sounds manageable — until you are running high-volume QA for a production line, validating a new material grade, or supporting a regulatory submission with hundreds of specimens. At that scale, manual testing creates real problems: - **Throughput bottlenecks** — One skilled operator means one test at a time. Backlogs pile up fast during peak QA periods. - **Data variability** — Hand-loading introduces grip alignment differences that show up as scatter in your tensile curves. - **Operator fatigue** — Repetitive loading across an 8-hour shift increases the chance of misaligned specimens and skipped data entries. - **Headcount dependency** — Adding people solves volume temporarily but does not fix the underlying process constraint. For QA Directors at plastics compounders and R&D leads validating new formulations, these constraints slow product development cycles and delay quality releases. ## What fully automated D638 testing looks like ![CubeTen robotic system running automated ASTM D638 tensile testing on a plastic specimen](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/astm-d638-automated-testing-run-3x-more-per-day/in-blog-cubeten-astm-d638-automated-testing.webp?width=1200&quality=75) A fully automated ASTM D638 system does not just speed up one step — it removes the operator from the repetitive loop entirely. With the CubeTen robotic testing system, the entire workflow runs hands-free: #### Queue Specimens are queued in a tray, ready for unattended loading. #### Load The robot picks, orients, and loads each specimen into calibrated grips. #### Measure An automated extensometer attaches, measures, and detaches — no human contact required. #### Route Test data routes directly to your LIMS or QMS with no manual export step. #### Repeat Failed specimens are disposed automatically; the next test begins immediately. The result: consistent grip alignment on every specimen, automated data capture with zero transcription errors, and continuous operation across shifts — including unattended overnight runs. ## Key advantages over manual and semi-automated systems Most legacy tensile testers offer limited automation — a self-locking grip here, a touch-panel interface there. That is semi-automation. Full robotic automation delivers a different class of results: | | Manual | Semi-automated | Recommended CubeOne / CubeTen | | --- | --- | --- | --- | | Specimens per day | 20–30 | 30–50 | 60–90+ | | Grip alignment | Operator-dependent | Operator-dependent | Consistent every run | | Data entry | Manual log | Semi-automated | Fully automated | | Overnight operation | | | | Overnight operation is the most underrated benefit. A system that runs unattended from 6 PM to 6 AM adds an entire extra shift — without additional labor cost. ## What to look for in an automated D638 testing system Not all automated systems are equal. When evaluating options, prioritize these capabilities: - **True hands-free specimen loading** — The robot, not a manual jig, should handle specimen placement and removal on every cycle. - **Automated extensometer** — Manual extensometer attachment is the most common bottleneck in semi-automated setups. Eliminate it entirely. - **LIMS/QMS integration** — Test data should route directly to your existing systems without a manual export step. - **ASTM D638 Type I–V compatibility** — Your system should handle the full range of specimen geometries you run in production. - **Documented throughput rates** — Ask vendors for verified specimens-per-hour data at your specimen type and target crosshead speed. For a deeper look at the D638 standard itself — specimen dimensions, grip types, and rate-of-separation requirements — see our [full ASTM D638 testing guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing). ## Is your lab ready to automate? The most common objection is volume: “We do not run enough specimens to justify it.” That threshold is lower than most labs expect. At 30+ specimens per week, the time savings on specimen handling, data entry, and operator supervision alone typically offset the system investment within 12–18 months. For labs running 100+ specimens weekly, ROI often comes in under 6 months. Our [automation vs. manual testing white paper](https://labscubed.com/white-paper-automation-vs-manual-testing) breaks down the math by specimen volume — a practical benchmark before you request a quote. If your team spends more time standing at the machine than analyzing results, that is the clearest signal that D638 automation is worth a serious evaluation. ## Frequently asked questions How many ASTM D638 specimens can an automated system run per day? Plastics labs running manual ASTM D638 tests typically process 20 to 30 specimens per operator per day. A fully automated system can run up to 60 to 90 specimens per day, with fewer errors and no operator standing at the machine for hours. Does my lab run enough specimens to justify automation? That threshold is lower than most labs expect. At 30 or more specimens per week, the time savings on specimen handling, data entry, and operator supervision typically offset the system investment within 12 to 18 months. For labs running 100 or more specimens weekly, return on investment often comes in under 6 months. What should I look for in an automated D638 testing system? Prioritize true hands-free specimen loading, an automated extensometer, LIMS or QMS integration, ASTM D638 Type I to V compatibility, and documented throughput rates verified at your specimen type and target crosshead speed. ## Ready to see it run The CubeTen handles ASTM D638 testing for plastics, rubber, and composite specimens — with full robotic specimen handling and automated extensometry. ### Run up to 3x more D638 specimens per day See how CubeTen automates ASTM D638 testing for plastics, rubber, and composites — from robotic specimen handling to automated extensometry. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials Testing Automation Specialists, LabsCubed The LabsCubed Team builds robotic, AI-driven systems for plastics, rubber, and composites QA labs. CubeOne and CubeTen are deployed in production labs across North America and Europe. ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ### Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | ASTM D790/ISO 178 Explained: Everything You Need to Know About Plastic Flexural Testing" description: "Mastering ASTM D790 & ISO 178: Why the Future of Flexural Testing is Horizontal Stop wasting time on manual grip changes and calibration. Learn the essentials of plastic flexural testing and discover how CubeFlex is revolutionizing the lab with automated, horizontal 3-point bending." url: https://labscubed.com/post/astm-d790-iso-178-explained-everything-you-need-to-know-about-plastic-flexural-testing --- ![ASTM D790/ISO 178 Explained: Everything You Need to Know About Plastic Flexural Testing](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/astm-d790-iso-178-explained-everything-you-need-to-know-about-plastic-flexural-testing/flexure-testing-machine-labscubed.webp?width=1280&quality=75) # ASTM D790/ISO 178 Explained: Everything You Need to Know About Plastic Flexural Testing [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) ASTM D790/ISO 178 Explained: Everything You Need to Know About Plastic Flexural Testing [Flexure Testing](https://labscubed.com/blog/category/flexure-testing) March 17, 2026 5 min This guide breaks down **plastic flexural testing** (3-point bending) as defined by **ASTM D790** and **ISO 178**. Discover what properties like **Flexural Modulus** are measured, understand the standard requirements for equipment and specimens, and learn the basic procedure for performing this vital test on plastics. ### **What is Flexural Testing?** Flexural testing, also known as a **bend test**, measures a material's behavior when subjected to bending. Unlike [tensile testing](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) (which pulls) or compression testing (which pushes), flexural testing applies force perpendicular to the material's long axis. For plastics, the most common type is the **3-point bending test**. In this setup, a rectangular specimen rests on two supports (an outer span), and a loading nose applies a force directly in the center of the span. This test is crucial for materials used in applications where they must withstand bending stress, like fan blades, power tool casings, dashboards, or other structural components. ### ‍**What Does it Measure?** The test generates a **flexural Stress vs. Strain** curve. From this data, the following key properties are calculated: Terms and definitions for Flexural Stress, Flexural Strain, Flexural Modulus (Modulus of Elasticity in Bending) and Flexural Strength. The ASTM D790 standard, quantifies flexural stress (σf), strain (εf) and modulus (EB) using the following three equations, respectively. Note that **d (depth)** is the dimension in the direction of loading (i.e., the thickness of the specimen,  the dimension through which the load is being applied through), and **b (width)** is the dimension perpendicular to loading, along the width of the specimen Terms and definitions based on ASTM D790 standard. Outer Surface Strain Calculation based on ASTM Standard. Modulus of Elasticity in Bending. ### **3-Point Versus 4-Point Bending Tests - What is the Difference?** The 3-point bending test method (Fig. 2(a)) concentrates the maximum flexural stress at a single point, the center of the specimen. This makes it an ideal choice for rapid strength checks, as the required equipment is often more affordable and the testing fixture is typically easier to set up and handle.  In contrast, 4-point bending (Fig. 2(b)) distributes the peak stress across a longer, central span between the two inner load points. This configuration provides a more uniform stress distribution, which can be superior for accurately measuring the flexural strength and modulus of certain materials. This benefit is particularly notable for anisotropic materials like fibre-reinforced composites or 3D-printed parts, where material properties may vary along the specimen's length. ‍ 3-point bending test method. Flexure testing. 4-point bending test method for flexural testing. ### ‍**When Should You Use ASTM D790 or ISO 178?** Both **ASTM D790** (American Society for Testing and Materials) and **ISO 178** (International Organization for Standardization) are the primary global standards for determining the flexural properties of plastics. - **ASTM D790:** This standard is widely used in North America and is a foundational method for characterizing plastic stiffness and strength. It offers two main testing procedures (Method A for slower rates and Method B for faster rates, often used for quality control). - **ISO 178:** This standard is preferred in Europe and by international companies. While the principles are like D790, there are differences in the specific testing speeds, deflection limits, and calculations. Choosing which standard to use usually depends on the **geographic market** where the product will be sold or the **requirements** of the customer.  By following these procedures, engineers can ensure that the test results are reliable and comparable across different studies/materials and applications. ### **ASTM D790 Test Specimens** The sample shape is always a simple **rectangular bar**. Common dimensions are a width of 12.7 mm, thickness of 3.2mm and length of 127mm. The exact dimensions can vary based on the material's thickness, where ASTM D790 defines specimens as: - **Standard Specimen:** A specimen that is **3.2 mm (0.125 in) thick**. This thickness is often preferred for general comparison. - **Non-Standard Specimens:** Used for materials thicker or thinner than the standard, but the **span-to-depth ratio** (the distance between the two supports divided by the thickness of the sample) must be maintained. For ASTM D790, this ratio is typically set at **16:1**. #### **ISO 178 Test Specimens** The ISO 178 standard for 3-point bending tests specifies a preferred bar specimen with dimensions of 80 mm (± 2 mm) long, 10 mm (± 0.2 mm) wide, and 4 mm (± 0.2 mm) thick. #### **Equipment Requirements** A universal testing machine (UTM) is required, equipped with the following specific tools: Flexure Testing in a traditional Universal Testing Machine. ### ‍**How to Perform a Flexural Test (3-Point Bending Test)** The test procedure is outlined below, where the set-up is shown in Figures 1 and 3: 1. **Measure Specimen:** Accurately measure the width and thickness of the rectangular specimen. 2. **Set Span:** Adjust the distance between the two support anvils to achieve the required **span-to-depth ratio** (e.g., 16:1 for D790 Method A). 3. **Place Specimen:** Center the specimen on the two supports. 4. **Apply Load:** The loading pin is driven downward at a **specified rate** (as defined by the standard) applying force to the center of the span. 5. **Record Data:** The UTM continuously records the **applied load** and the resulting **deflection**. 6. **Stop Test:** The test stops when the specimen fractures, or when the strain reaches a specified limit (often **5.0%** in D790) if the material is too flexible to break. **Calculate Results:** The recorded load and deflection data, combined with the specimen's dimensions, are used to calculate the Flexural Modulus and Flexural Strength. ### From Manual Setup to Automated Precision The steps outlined above represent the traditional "hands-on" approach to materials testing. In a standard UTM, an operator spends significant time manually adjusting the span, centering the specimen by eye, and using handheld micrometers to input dimensions—all of which introduce "the human element" and potential data variance. CubeFlex from LabsCubed. Flexure test and [tensile testing](https://labscubed.com/plastic-testing) in the same machine. No grip changing needed. **The CubeFlex redefines this workflow by performing the 3-point bending test horizontally (Fig. 3).** In this configuration, the primary concern is not the orientation of the specimen relative to gravity, but the absolute precision of the specimen’s alignment and dimensions. By removing the manual "touchpoints" of the test, CubeFlex ensures that your data is governed strictly by the material's properties. Key features that maintain this integrity include: - **Envision System Alignment:** Our integrated vision system automatically centers the specimen between the supports and under the loading pin. This guarantees that maximum stress occurs exactly at the midpoint, as required by the flexural stress formula, without an operator needing to "eye" the placement. - **Auto-Width & Auto-Thickness Measurement:** Operators no longer need to manually measure samples with calipers and type in the data. CubeFlex automatically captures the width and thickness of the sample with high-precision sensors, feeding these variables directly into the ASTM and ISO equations for instant, error-free calculations. - **Horizontal Stability:** Testing "sideways" allows for a more stable loading environment for automation. Because the loading and support noses are aligned horizontally, the system can more easily transport samples from a tray to the testing zone without risking the specimen falling or tilting during the transition. CubeFlex from inside. Grips and 3-point bending system. All automated. 15 samples in each tray. A 3-point flexural (bending) test performed horizontally or sideways in comparison to Figures 1 and 2. The images and diagrams throughout this article illustrate the traditional landscape of flexural testing. For decades, the industry standard has relied on Universal Testing Machines (UTM) where samples are loaded manually in a vertical orientation. While these systems are the bedrock of material science, they often introduce "the human element"—the time-consuming process of changing heavy grips, manual calibration, and the risk of inconsistent results due to improper sample handling or alignment. CubeFlex reimagines this process. While the previous figures showed the traditional vertical 3-point bend, our technology transitions this test into a horizontal, fully automated workflow. ### **Efficiency Without Compromise** A common question arises when seeing a horizontal setup: _Does the orientation affect the data?_ The answer is a definitive no. Whether a sample is bent vertically or horizontally, the physics of the flexural stress and strain remain governed by the same mechanical laws. By moving to a horizontal plane, CubeFlex maintains 100% data integrity while solving the logistical bottlenecks of the lab. ### ‍**Why Choose CubeFlex for Your Lab?** - Zero-Touch Automation: Eliminate the need for operators to manually change grips or recalibrate between tests. Once the samples are loaded into our specialized trays, the machine handles the rest. - Multitasking Capabilities: Lab efficiency is doubled. Operators can now run [tensile](https://labscubed.com/plastic-testing) and flexure testing simultaneously. Simply configure your sample map on the CubeFlex touchscreen, and the system manages the distinct parameters for each test type automatically. - Error Reduction: Automated loading ensures that every specimen is centered perfectly between the supports, eliminating the alignment errors that often plague manual UTM setups. ### ‍**Guaranteed Compliance to Global Standards** Innovation doesn't mean moving away from the rules. CubeFlex is engineered to follow the exact geometries, span-to-depth ratios, and loading speeds required by international governing bodies. We ensure your data is "apples-to-apples" with any traditional machine. Flexure Testing (3-Point): ASTM D790 / ISO 178 - Flexural Modulus, Strength, and Strain Tensile Testing: [ASTM D638 / ISO 527](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing): Tensile Strength, Elongation, Young's Modulus ### ‍**In Summary** Flexural testing, governed by standards like ASTM D790 and ISO 178, is essential for selecting plastics for parts that need stiffness and strength, i.e., fan blades, power tool casings, automotive components, etc. Understanding the 3-point bending method and its specific requirements ensures reliable data. By accurately measuring properties like Flexural Modulus, engineers can confidently select the right material, ultimately leading to more durable and safer products. ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Tensile test of composite materials - carbon fibre specimen clamped in tensile grips in a materials testing lab](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-test-of-composite-materials-practical-guide/6a6c86479be977e6ac041dc4_Thumb--20Tensile-20Test-20of-20Composite-20Materials-20--20LabsCubed-20Blog.webp?width=800&quality=75) Testing Standards 9 min read ### Tensile Test of Composite Materials: A Practical Guide Tensile test of composite materials made simple: specimen prep, fixtures, standards, and how automation cuts variability. See the guide and run cleaner tests.](https://labscubed.com/post/tensile-test-of-composite-materials-practical-guide) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Automated Rubber Tensile Testing Machines: A Guide for High-Volume Testing Labs" description: "Learn how automated rubber tensile testing machines improve throughput, repeatability, and ASTM D412 compliance in modern testing laboratories." url: https://labscubed.com/post/automated-rubber-tensile-testing-machine --- ![Automated rubber tensile testing machine gripping a rubber dumbbell specimen above a tray of queued specimens](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/automated-rubber-tensile-testing-machine/automated-rubber-tensile-testing-machine-main.webp?width=1280&quality=75) # Automated Rubber Tensile Testing Machines: A Guide for High-Volume Testing Labs [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Automated Rubber Tensile Testing Machines: A Guide for High-Volume Testing Labs [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) June 10, 2026 6 min When a rubber testing lab falls behind, the problem is rarely the tensile test itself — it is the specimen loading, grip adjustments, and manual reporting that occur between cycles. **An automated rubber tensile testing machine combines specimen handling, test execution, and data collection into one repeatable workflow**, removing the manual steps that consume technician time and introduce operator variability. LabsCubed's CubeOne, CubeTen, and HERO Lab systems automate these processes while supporting ASTM D412 and ISO 37 rubber testing requirements. On this page 1. What does a rubber tensile testing machine measure? 2. Why do manual rubber testing workflows create bottlenecks? 3. What specifications matter when selecting a rubber tensile testing machine? 4. ASTM D412 and ISO 37 requirements 5. Manual vs. automated rubber testing 6. How LabsCubed approaches rubber testing automation 7. Frequently asked questions 8. Conclusion ## What does a rubber tensile testing machine measure? **A rubber tensile testing machine measures how elastomer materials respond to tensile forces by generating stress-strain data throughout the test.** ![Rubber tensile stress-strain curve marking tensile strength at maximum stress, with automated testing grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/automated-rubber-tensile-testing-machine-01.webp?width=1200&quality=75) The resulting stress-strain curve is used to determine: - Tensile strength - Elongation at break - Modulus at specific elongation levels - Material stiffness and deformation behavior These properties are critical for qualifying compounds used in: - Seals - Gaskets - Hoses - Tires - Industrial elastomer components Most industrial [rubber testing](https://labscubed.com/rubber-testing) programs rely on ASTM D412 and ISO 37 as the primary standards for evaluating tensile performance. ## Why do manual rubber testing workflows create bottlenecks? **Manual workflows often limit throughput and introduce variability that can affect test consistency.** A typical technician may spend more time handling specimens than running the actual test. Common manual tasks include: - Loading dumbbell specimens - Adjusting grip force - Verifying specimen alignment - Recording results - Managing traceability records As sample volumes increase, these activities become a growing source of delay. Manual workflows can also introduce: - Operator variability - Specimen slippage - Inconsistent grip seating - Data entry errors - Retests caused by handling issues For laboratories running ASTM D412 testing throughout the day, reducing these sources of variation can have a significant impact on repeatability. ## What specifications matter when selecting a rubber tensile testing machine? **The right system should be optimized for elastomer testing rather than adapted from a general-purpose platform.** Four criteria carry most of the decision. #### Load cell performance Rubber testing often requires accurate force measurement at relatively low loads. Verify performance within your actual testing range rather than relying solely on rated capacity. #### Crosshead speed control ASTM D412 and ISO 37 require controlled test speeds. Maintaining a consistent crosshead speed throughout the test is essential for generating repeatable stress-strain data. #### Grip design Grip selection has a direct impact on data quality. Pneumatic grips are often preferred because they provide consistent clamping force and reduce the risk of specimen slippage. #### Data management Modern systems should support automatic data capture, traceability, audit trails, real-time reporting, and LIMS and QMS integration — eliminating manual transcription and improving reporting efficiency. ## ASTM D412 and ISO 37 requirements **ASTM D412 and ISO 37 establish standardized procedures for measuring tensile properties of vulcanized rubber and thermoplastic elastomers.** ![ASTM D412 and ISO 37 rubber tensile testing requirements: specimen geometry, grips, load accuracy, conditioning](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/automated-rubber-tensile-testing-machine-02.webp?width=1200&quality=75) The standards define: - Specimen geometry - Test speed requirements - Load measurement accuracy - Conditioning procedures - Grip requirements Consistent execution of these procedures is essential for producing results that can be compared across laboratories and production sites. Automation helps support compliance by reducing variation introduced during specimen handling and setup. For a step-by-step walkthrough, see our guide on [how to run ASTM D412 and ISO 37 tensile testing for rubber](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing). ## Manual vs. automated rubber testing The primary benefit is consistency. When specimen handling, grip seating, and reporting are standardized, laboratories can focus on analyzing results rather than managing repetitive tasks. | | Manual workflow | Recommended Automated workflow | | --- | --- | --- | | Specimen loading | Manual specimen loading | Robotic specimen handling | | Alignment | Visual alignment | Consistent positioning | | Reporting | Manual reporting | Automated data capture | | Setup | Operator-dependent setup | Improved repeatability | | Traceability | Manual traceability | Digital audit trails | | Utilization | Limited utilization | Continuous operation | See why [manual tensile testing can cost your lab significant time](https://www.youtube.com/watch?v=Y0qXEgPcf5U) compared with an automated workflow. ## How LabsCubed approaches rubber testing automation LabsCubed treats automation as a complete workflow rather than a machine feature. CubeOne and CubeTen integrate: - Robotic specimen handling - AI-powered vision - Specimen validation - Grip seating verification - Automated data collection - Digital audit-ready records Within the HERO Lab ecosystem, these systems help connect specimen preparation, tensile testing, and reporting into a single workflow. For laboratories running high volumes of ASTM D412 or ISO 37 testing, this approach helps improve repeatability while reducing operator dependency. For the tensile-specific view, see our [automated tensile testing guide](https://labscubed.com/post/automated-tensile-testing). ## Frequently asked questions What is an automated rubber tensile testing machine? An automated rubber tensile testing machine combines robotic specimen handling, tensile testing equipment, and software to automate testing and reporting workflows. Which standards are used for rubber tensile testing? ASTM D412 and ISO 37 are the most widely used standards for measuring tensile properties of rubber and elastomers. How does automation improve rubber testing? Automation helps reduce operator variability, improve repeatability, and automate data collection and traceability. ## Conclusion As testing volumes increase, manual workflows become more difficult to scale. Automated rubber tensile testing machines help laboratories improve repeatability, reduce operator variability, and maintain data traceability by automating specimen handling and reporting. By combining robotics, AI-powered vision, and workflow automation, LabsCubed's CubeOne, CubeTen, and HERO Lab platforms help rubber manufacturers create more consistent and efficient quality control processes. ### Automate your rubber testing workflow Looking to automate your ASTM D412 or ISO 37 testing? Talk with the LabsCubed team to explore how CubeOne, CubeTen, and HERO Lab can support your rubber testing requirements. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials Testing Automation Specialists, LabsCubed The LabsCubed Team builds robotic, AI-driven systems for plastics, rubber, and composites QA labs. CubeOne and CubeTen are deployed in production labs across North America and Europe. ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ### Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Automated Tensile Testing: How Labs Cut Cycle Time Up to 85%" description: "Learn how automated tensile testing improves throughput, repeatability, and data traceability in plastics, rubber, and composite testing labs." url: https://labscubed.com/post/automated-tensile-testing --- ![Automated Tensile Testing: How Labs Cut Cycle Time Up to 85%](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/automated-tensile-testing/Cover-LABSCUBED-Automated-Tensile-Testing-Machines-CubeOne---LABSCUBED-Blog1.webp?width=1280&quality=75) # Automated Tensile Testing: How Labs Cut Cycle Time Up to 85% [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Automated Tensile Testing: How Labs Cut Cycle Time Up to 85% [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) June 3, 2026 6 min When technicians spend more time loading specimens, adjusting grips, and recording results than actually running tests, the bottleneck is no longer the tensile testing machine — it is the workflow around it. **Automated tensile testing integrates specimen handling, test execution, and data collection into one repeatable process.** LabsCubed's CubeOne and CubeTen systems combine robotics, AI-powered vision, and digital reporting to help labs improve consistency while scaling capacity. In plastics, rubber, and composite manufacturing, tensile testing sits directly between production and material release. Delays slow quality approval and downstream operations, and as volumes grow, manual workflows introduce variability and cap throughput. 85% less testing cycle time, up to When specimen handling, test execution, and reporting are automated into one continuous workflow, the manual steps between tests — not the pull itself — are what disappear. On this page 1. Why manual tensile testing creates bottlenecks 2. What does automated tensile testing look like? 3. Manual vs. automated tensile testing 4. How automation improves data quality 5. Supporting ASTM and ISO workflows 6. How LabsCubed approaches automated testing 7. Frequently asked questions 8. Conclusion ## Why manual tensile testing creates bottlenecks Most delays occur between tests rather than during the test itself. As throughput increases, these small delays accumulate and reduce machine utilization. Manual workflows also affect data quality: small differences in grip seating, specimen centering, and parameter setup increase data scatter and make repeatability harder to maintain. ![Common sources of inefficiency in manual tensile testing](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/automated-tensile-testing/sources-of-inefficiency-manual-tensile-testing.webp?width=1200&quality=75) ## What does automated tensile testing look like? Automated tensile testing removes manual intervention from specimen handling, test execution, and reporting. A typical workflow runs as a continuous loop, letting one operator supervise several systems at once. #### Load Specimens are placed into a tray or feeder — no per-specimen clamping. #### Transfer A robotic system moves each specimen from the tray to the testing area. #### Verify AI-assisted vision confirms positioning and alignment before the pull. #### Test The test runs to predefined ASTM or ISO parameters; stress-strain data is captured automatically. #### Log Results are linked to specimen IDs, stored digitally, and the system advances to the next specimen. See an automated cell in action: [automated tensile testing for elastomers and rubber](https://www.youtube.com/watch?v=nolj-RJQMeg). ## Manual vs. automated tensile testing The biggest advantage is often not speed alone. Reducing operator variability improves process consistency and data reliability across large batches. | | Manual workflow | Recommended Automated workflow | | --- | --- | --- | | Specimen loading | Manual specimen loading | Robotic specimen handling | | Alignment | Visual alignment | Consistent positioning | | Reporting | Spreadsheet reporting | Automated data capture | | Setup | Operator-dependent setup | Improved repeatability | | Utilization | Limited utilization | Continuous operation | | Traceability | Higher risk of transcription errors | Better traceability | ## How automation improves data quality Consistent specimen handling and digital data collection reduce variability throughout the testing process. This is especially valuable when testing elastomers and high-elongation materials, where small differences in grip positioning or strain distribution can affect results. Automation helps maintain: - **Consistent grip alignment** — each specimen is seated against the same reference, every time. - **Repeatable test parameters** — predefined methods run identically across operators and shifts. - **Reliable specimen tracking** — every result is linked to a specimen ID at capture. - **Digital audit trails** — timestamps and machine state are logged for every pull. - **Data traceability** — results flow into LIMS without manual re-keying. ## Supporting ASTM and ISO workflows Automated tensile testing systems support a wide range of standards, including ASTM D638, ISO 527, ASTM D412, ISO 37, and ASTM D882. Rather than relying on manual setup for every batch, parameters are stored and executed automatically, improving repeatability and reducing setup time. For frame-selection guidance, see our [tensile testing machine guide](https://labscubed.com/post/tensile-testing-machine), the [tensile strength tester buyer's guide](https://labscubed.com/post/tensile-strength-tester-buyers-guide) for a buyer-mode walkthrough, or our tensile tester explainer for the equipment basics. For a broader look at the mechanical properties and testing of polymers those standards measure, start with our full QA guide, or see our survey of the other mechanical tests for polymers that sit alongside tension. For material-specific values, see our HDPE tensile strength guide. ## How LabsCubed approaches automated testing LabsCubed's CubeOne and CubeTen systems are designed as lab automation systems — workflow automation platforms rather than standalone testing machines. They combine robotic specimen handling, AI-powered vision, specimen validation, grip-seating verification, automated reporting, and digital audit-ready records. The objective is not simply to run tests faster, but to create repeatable workflows from specimen loading to final reporting. See the [LabsCubed robotic arm](https://www.youtube.com/watch?v=RILG7TXhc-w) in operation. ## Frequently asked questions What is automated tensile testing? Automated tensile testing uses robotics and software to perform specimen handling, test execution, and data collection with minimal operator intervention. It integrates loading, alignment, the pull, and reporting into one repeatable workflow so operators can supervise multiple systems instead of running each cycle by hand. How does automation improve throughput? Automation reduces time spent on specimen loading, grip adjustments, and manual reporting, allowing laboratories to process more specimens with greater consistency. Because most delays occur between tests rather than during them, removing that manual work is what raises machine utilization. Which standards are commonly used? Automated systems commonly support ASTM D638, ASTM D412, ISO 527, ISO 37, and ASTM D882 depending on the material and application. Predefined methods are stored and executed automatically to keep results consistent between operators and batches. ## Conclusion As testing volumes grow, manual processes often become the limiting factor rather than the [universal testing machine](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber) itself. Automated tensile testing helps laboratories improve repeatability, reduce operator variability, and increase throughput by integrating specimen handling, testing, and reporting into a continuous workflow. The same pattern applies to adjacent methods, from flexural to hardness testing for polymer composites. By combining robotics, AI-powered vision, and digital data collection, LabsCubed's CubeOne and CubeTen systems help plastics, rubber, and composite laboratories scale efficiently while maintaining confidence in their test data. ### Reduce operator variability and improve throughput Explore how LabsCubed's CubeOne and CubeTen systems automate tensile testing workflows from specimen loading to final reporting. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials Testing Automation Specialists, LabsCubed The LabsCubed Team builds robotic, AI-driven systems for plastics, rubber, and composites QA labs. CubeOne and CubeTen are deployed in production labs across North America and Europe. ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ### Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Composite Material Testing: Methods, Standards, and Automation" description: "Learn the key composite material testing methods, ASTM standards, and how automation improves throughput, repeatability, and data quality." url: https://labscubed.com/post/composite-material-testing --- ![Composite Material Testing: Methods, Standards, and Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/composite-material-testing/Composite-Testing-Blog-Cover--LABSCUBED.webp?width=1280&quality=75) # Composite Material Testing: Methods, Standards, and Automation [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Composite Material Testing: Methods, Standards, and Automation [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) June 17, 2026 6 min Composite material testing measures the mechanical properties of fiber-reinforced materials — tensile strength, compressive behavior, and flexural stiffness — using standardized methods. **Whether you work with carbon fiber (CFRP), glass fiber, or hybrid laminates, reliable test data is essential for design validation and quality control.** As volumes rise, many labs turn to automation, and LabsCubed's CubeOne and CubeTen systems support these workflows with robotic specimen handling, AI-powered vision, and automated data collection. This guide covers the most common composite testing methods, the key ASTM standards behind them, and how automation helps manufacturing labs scale efficiently. On this page 1. What is composite material testing? 2. Why is composite testing more challenging than metal testing? 3. Which ASTM standards are used for composite material testing? 4. Main composite testing methods 5. How automation improves composite material testing 6. Best practices for reliable composite testing 7. Frequently asked questions 8. Conclusion ## What is composite material testing? Composite material testing measures the mechanical properties of fiber-reinforced materials using standardized methods, helping engineers qualify materials for design, manufacturing, and quality assurance. Unlike metals, composites are anisotropic — their properties change with fiber orientation and layup — so multiple test methods are required to fully characterize a material. Typical properties measured include: - Ultimate tensile strength - Elastic modulus - Compressive strength - Flexural strength - Strain at failure These measurements are used throughout aerospace, automotive, electronics, and industrial manufacturing applications. ## Why is composite testing more challenging than metal testing? Composite materials behave differently depending on load direction, which makes testing more sensitive to specimen preparation and alignment. A single coupon rarely tells the full story; engineers often need multiple tests to understand how a laminate performs under tension, compression, and bending. Common sources of variability include: - Specimen misalignment - Inconsistent grip seating - Improper tab bonding - Operator-dependent procedures Maintaining repeatability becomes increasingly difficult as sample volumes grow, especially in manual workflows. ## Which ASTM standards are used for composite material testing? Different ASTM standards evaluate different failure modes. Together, they provide a complete picture of material performance. Among them, ASTM D3039 is typically the starting point for mechanical characterization programs. Core ASTM standards for composite characterization | Test type | Standard | Property measured | | --- | --- | --- | | Tensile | ASTM D3039 | Tensile strength and modulus | | Compression | ASTM D3410 | Compressive strength | | Flexural | ASTM D7264 | Flexural strength and stiffness | | In-plane shear | ASTM D3518 | Shear properties | | Interlaminar shear | ASTM D2344 | Bond quality | ## Main composite testing methods Three methods carry most characterization programs. Tensile, flexural, and compression data are usually built together into a material database. #### ASTM D3039 tensile Measures tensile strength, elastic modulus, and strain at failure. Specimens are loaded axially in a UTM until fracture; multiple orientations capture anisotropy. #### ASTM D7264 flexural Evaluates flexural strength and stiffness under bending. Three-point and four-point setups show how laminates respond to bending alongside tensile data. #### ASTM D3410 compression Measures compressive properties for structural applications under compression loads, completing the tensile and flexural picture of composite performance. ![Flexural composite material testing setup measuring bending strength](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/composite-material-testing/flexure-composite-testing.webp?width=1200&quality=75) Because composites are anisotropic, reliable results depend on proper specimen alignment, accurate grip seating, controlled crosshead speed, and consistent extensometer measurement across every orientation tested. ## How automation improves composite material testing Much of the time spent in composite testing happens outside the actual test. Specimen loading, grip alignment, and reporting create bottlenecks that limit productivity. Automation increases throughput and improves repeatability by reducing manual intervention across that workflow. | | Manual workflow | Recommended CubeOne / CubeTen | | --- | --- | --- | | Specimen loading | Manual specimen loading | Robotic specimen handling | | Alignment | Visual alignment | Consistent positioning | | Reporting | Manual reporting | Automated data capture | | Repeatability | Operator-dependent processes | Higher repeatability | | Utilization | Limited machine utilization | Continuous testing capability | LabsCubed's CubeOne and CubeTen systems combine robotic specimen handling, AI-powered vision, and automated data collection into repeatable, audit-ready workflows. Rather than focusing only on machine speed, they improve process consistency from specimen loading to final reporting. ## Best practices for reliable composite testing Reliable data depends on more than the test itself. Work through this short checklist before scaling a program. - Maintain proper specimen alignment and tab bonding - Follow current **ASTM** standards for each failure mode - Ensure traceability throughout the workflow - Reduce operator variability wherever possible ## Frequently asked questions What is composite material testing? Composite material testing measures the mechanical properties of fiber-reinforced materials to support material qualification, design validation, and quality control. Because composites are anisotropic, multiple test methods are used to characterize tension, compression, flexure, and shear behavior. Which ASTM standards are used for composite testing? The most widely used standards include ASTM D3039 for tensile testing, ASTM D3410 for compression, ASTM D7264 for flexural testing, ASTM D3518 for in-plane shear, and ASTM D2344 for interlaminar shear. Together they describe a material across multiple failure modes. How does automation improve composite material testing? Automation reduces operator variability, improves repeatability, and increases throughput by automating specimen handling and data collection. Consistent positioning and digital audit trails address the specimen-preparation and alignment errors that drive scatter in manual composite testing. ## Conclusion Composite materials require more than a single test to characterize their performance. Tensile, compression, and flexural methods work together to provide the data needed for design validation and quality assurance. As testing volumes increase, many laboratories are shifting from manual processes to automated workflows. By combining robotics, AI-powered vision, and digital data capture, LabsCubed's CubeOne and CubeTen systems help manufacturers improve repeatability, reduce operator variability, and scale testing operations with confidence. ### Improve throughput and data consistency Explore how LabsCubed's CubeOne and CubeTen systems automate specimen handling, testing, and reporting to create repeatable, audit-ready workflows for your composite testing lab. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials Testing Automation Specialists, LabsCubed The LabsCubed Team builds robotic, AI-driven systems for plastics, rubber, and composites QA labs. CubeOne and CubeTen are deployed in production labs across North America and Europe. ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ### Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. 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All rights reserved. --- --- title: "Blog LabsCubed | Fatigue Testing in Rubber Compounds: Understanding Long-Term Performance" description: "Explore the fundamentals of fatigue testing for rubber compounds, from traditional to 3D printed materials. A guide for materials engineers and lab managers on ensuring long-term performance and durability." url: https://labscubed.com/post/fatigue-testing-in-rubber-compounds-understanding-long-term-performance --- ![Fatigue Testing in Rubber Compounds: Understanding Long-Term Performance](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/fatigue-testing-in-rubber-compounds-understanding-long-term-performance/Fatigue-Testing-in-Rubber_Compounds_Understanding-Long-Term-Performance.webp?width=1280&quality=75) # Fatigue Testing in Rubber Compounds: Understanding Long-Term Performance [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Fatigue Testing in Rubber Compounds: Understanding Long-Term Performance [Lab Automation](https://labscubed.com/blog/category/lab-automation) June 3, 2026 10 min ### **A Material's Lifecycle** When a rubber component is designed (whether it's a car tire, a medical seal, or a part of a robot) its immediate strength reflects only part of its performance. What also matters is how it performs over thousands or millions of cycles of use. This is where fatigue testing becomes essential. Unlike a single tensile test that pulls a material to its breaking point, fatigue testing reveals a material's long-term performance and resistance to repeated stress. This article is a research summary for materials engineers and lab managers on why fatigue testing is critical for rubber compounds, and how it applies to both traditional and 3D printed materials. ### **1\. What is Fatigue Testing?** Fatigue testing is a method for assessing how a material responds to cyclical loading (repeatedly being stretched, bent, or compressed). It simulates the real-world conditions a product will face over its service life. The goal is to determine the point at which a material fails, not from a single, high-force event, but from the accumulation of micro-damage over time. This process differs fundamentally from a single tensile test (like those performed under ASTM D412/ISO 37 standards \[1, 13\]). A tensile test measures a material's ultimate strength and elongation at one specific point in time. Fatigue testing, on the other hand, provides a measure of durability testing and material lifetime, which are often more relevant metrics for many applications \[2\]. ### **2\. Why Fatigue Testing is Important for Rubber Compounds** Rubber is unique because of its high elasticity and ability to return to its original shape. However, this elasticity is not infinite. Repeated deformation can cause molecular chains to break down, leading to a gradual loss of mechanical properties \[21, 22\]. Without fatigue testing, a rubber part might pass all initial quality control tests and still fail prematurely in the field. This makes it a crucial part of product development and quality assurance, ensuring components can meet their designed long-term performance goals \[23, 24\]. ### **3\. How Fatigue Testing Differs for Traditional vs. 3D Printed Rubbers** The principles of fatigue apply to all rubber compounds, but the results can vary significantly between traditional and 3D printed rubbers \[24\]. - **Traditional Rubbers (Moulded/Machined):** These materials are typically homogeneous, meaning their properties are uniform throughout the part. When a moulded rubber compound undergoes fatigue, the failure is often predictable and based on the material's inherent properties and curing process. Materials engineers can rely on well-established data to predict material lifetime. - **3D Printed Rubbers (e.g., TPU):** 3D printed rubbers, like those made from flexible TPU filament, are not homogeneous. The additive manufacturing process creates layers, which introduce anisotropy (direction-dependent properties) and potential weaknesses at the bond lines between layers \[42, 43\]. This can make the printed parts weak in loadings perpendicular to the build orientation \[43\]. This means that a 3D printed rubber part's durability testing results can vary greatly depending on the print orientation and infill pattern \[42, 43\]. Fatigue failure in these parts often occurs at the layer interfaces, a failure mode that is unique to the additive manufacturing process \[43\]. ### **4\. ISO and ASTM Standards for Rubber Fatigue Testing** Understanding and adhering to standardized test methods is essential for obtaining reliable, reproducible fatigue testing results. Several key international standards govern fatigue testing of rubber materials: ### **Primary ASTM Standards** **ASTM D430 - Standard Test Methods for Rubber Deterioration - Dynamic Fatigue** This is the foundational standard for estimating the ability of soft rubber materials to resist dynamic fatigue \[2\]. The test methods cover procedures for repeated flexing that estimate fatigue resistance, though they explicitly note that no exact correlation between test results and service conditions is given or implied due to the varied nature of real-world applications. The standard yields comparative data useful for evaluating rubber or composite rubber-fabric materials \[33, 34\]. **ASTM D813 - Standard Test Method for Rubber Deterioration - Crack Growth** This method focuses specifically on crack propagation in rubber materials \[4\]. A rubber sample is pierced, clamped into a flexing machine, and subjected to prescribed flexing cycles. The growth of the initial flaw is then measured over time to understand how cracks develop under cyclic loading. This test is particularly valuable for synthetic rubber materials \[33, 34\]. **ASTM D4482 - Standard Test Method for Rubber Property - Extension Cycling Fatigue** Unlike other flex fatigue tests that involve pre-cut samples, ASTM D4482 evaluates extension cycling fatigue on whole, uncut samples \[5\]. Specimens undergo repeated elongation and relaxation cycles to predict when cracks or imperfections may appear during service. This method is commonly used in the tire industry to assess fatigue life under tensile strain cycles \[33, 34\]. **ASTM D623 - Standard Test Methods for Rubber Property - Heat Generation and Flexing Fatigue in Compression** This standard addresses the critical issue of heat build-up during cyclic compression, which is particularly relevant for applications where rubber components experience repeated compressive loads (such as engine mounts and vibration isolators) \[3, 32\]. **Key ISO Standards** **ISO 6943 - Rubber, Vulcanized - Determination of Tension Fatigue** This international standard provides methods for determining the resistance of vulcanized rubbers to fatigue under repeated tensile deformation \[17\]. The test is designed so that there is minimal temperature rise during cycling, ensuring that failure results from crack growth rather than thermal degradation. This is considered one of the most flexible standard methods for generating fatigue life curves (strain versus number of cycles to failure) \[34\]. **ISO 37 - Rubber, Vulcanized or Thermoplastic - Determination of Tensile Stress-Strain Properties** While primarily a tensile testing standard, ISO 37 serves as a baseline for understanding the static mechanical properties that are then compared with dynamic fatigue performance \[13\]. ### **Environmental and Condition Testing Standards** When assessing fatigue performance, it's crucial to consider environmental factors that affect rubber degradation: - **Temperature effects:** Testing at elevated temperatures helps simulate accelerated aging and real-world thermal conditions \[25, 32\] - **Chemical exposure:** Standards for testing rubber resistance to oils, fuels, and other chemicals (ISO 1817 \[16\], ASTM D471 \[7\]) complement fatigue testing \[31\] - **Ozone resistance:** ASTM D1149 \[8\] and ISO 1431 \[15\] evaluate crack formation due to ozone exposure - **Compression set:** ASTM D395 \[6\] and ISO 815 \[14\] measure the permanent deformation after compression, which relates to long-term durability It's important to note that these standards emphasize that laboratory test results provide comparative data for material selection and quality control, but should be validated against actual service conditions whenever possible \[2, 17\]. ### **5\. Industry Lifecycle Testing Examples** Understanding how fatigue testing translates to real-world applications provides valuable context for materials engineers. Here are three key industry examples of lifecycle fatigue testing: **Example 1: Automotive Tire Fatigue and Durability** **Application Context** Automotive tires represent one of the most demanding applications for rubber fatigue testing. A tire endures millions of deformation cycles throughout its service life while being exposed to varying temperatures, road conditions, and loading scenarios \[24, 35\]. **Testing Approach** The tire industry employs comprehensive fatigue testing programs that include both laboratory and field testing. According to research by the National Highway Traffic Safety Administration (NHTSA), tire aging involves two primary degradation mechanisms: thermo-oxidative aging (degradation of rubber compounds due to heat and oxygen) and cyclic fatigue during tire deformation \[26\]. The most critical region assessed is the belt-edge area in the tire shoulder, where mechano-thermo-oxidative degradation is most severe \[26\]. Laboratory testing includes: - **Dynamic fatigue testing** on indoor roadwheel systems at 1.707m diameter \[26\] - **Micro-DeMattia flex fatigue testing** for skim-coat and wedge compounds \[26\] - **Heat build-up measurements** under both strain-controlled (sidewall) and stress-controlled (tread center) conditions \[32\] - **Accelerated aging protocols** that simulate years of environmental exposure \[26\] Modern tire testing facilities use advanced equipment like the Metravib DMA+2000, which can evaluate heat generation inside tire materials under both strain-controlled and stress-controlled conditions simultaneously while measuring viscoelastic properties \[32\]. This allows engineers to assess material performance in different tire regions (sidewall vs. tread) where different loading conditions dominate. ### **Key Metrics and Standards** - Cycles to crack initiation and propagation - Heat build-up characteristics \[32\] - Crosslink density changes over time \[26\] - Tensile strength and elongation degradation \[26\] - Testing per ASTM D430 \[2\], D4482 \[5\], and proprietary manufacturer protocols \[33\] (a) ![A diagram of a pipeAI-generated content may be incorrect.](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/fatigue-testing-in-rubber-compounds-understanding-long-term-performance/537c728e.jpeg?width=1200&quality=75) (b) ![A person working on a computerAI-generated content may be incorrect.](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/fatigue-testing-in-rubber-compounds-understanding-long-term-performance/f9cbb490.png?width=1200&quality=75) **Figure X:** (a) examples of tire deformation \[44\] and (b) tire fatigue testing on an indoor roadwheel system \[45\] **Example 2: Medical Device Seals and Packaging Integrity** **Application Context** Medical device packaging requires sterile seals that maintain integrity throughout the product's shelf life—often several years. These seals must withstand sterilization processes, transportation vibrations, and storage conditions while remaining easy enough for healthcare professionals to open aseptically \[36, 38\]. **The lifecycle approach requires testing at multiple stages:** immediately after sealing, after sterilization, after accelerated aging, and at various intervals throughout the product's shelf life \[38, 39\]. Seal failure modes are carefully analyzed, adhesive failure (at the interface), cohesive failure (within the sealant), or material failure (tearing of packaging), to understand and improve seal durability \[37\]. ### **Key Metrics and Standards** - Peel strength uniformity and consistency \[36, 37\] - Seal integrity after aging and environmental exposure \[38, 39\] - Microbial barrier effectiveness over time \[39\] - Standards: ISO 11607-1 & 11607-2 \[18, 19\], ASTM F88 \[9\], ASTM F1980 \[11\], ASTM F2096 \[12\] ![Laboratory peel test setup showing a medical device package being tested for seal strength](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/fatigue-testing-in-rubber-compounds-understanding-long-term-performance/3e618342.jpeg?width=1200&quality=75) **Figure X:** Laboratory peel test setup showing a medical device package being tested for seal strength \[39\]. **Example 3: Aerospace and Defense Vibration Isolators** **Application Context** Rubber vibration isolators in aerospace applications must reliably dampen vibrations and shocks over decades of service while exposed to extreme temperatures, chemicals (fuels, hydraulic fluids), and high-frequency cyclic loading \[28, 29, 30\]. These components are critical for protecting sensitive avionics, instruments, and structural components from fatigue damage \[40, 41\]. **Testing Approach** Aerospace-grade rubber isolators undergo extensive qualification testing that combines environmental exposure with mechanical fatigue \[30, 31\]: - **Dynamic characterization** measuring stiffness and damping at frequencies from static conditions up to 300 Hz \[30, 40\] - **Multi-axis fatigue testing** simulating combined radial, axial, and torsional loads using servohydraulic test systems \[40\] - **Temperature cycling** combined with mechanical loading to assess performance across the operational temperature range (-55°C to +125°C or wider) \[31\] - **Chemical resistance testing** with exposure to aviation fuels, lubricants, and hydraulic fluids followed by mechanical property verification \[31\] - **Long-term durability testing** extending to 100 million cycles for laminated rubber-metal structures \[30\] Research on aerospace laminated rubber bearings shows these heavy-duty composites can achieve exceptionally high fatigue life when properly designed \[29, 30\]. Testing typically involves accelerated lifetime experiments under random vibration loading, with structural parameters varied to model degradation and predict service life \[30\]. The testing philosophy differs from consumer products: aerospace applications often require "fatigue-to-fracture" testing that pushes components beyond their design limits to establish safety margins and understand failure mechanisms. ### **Key Metrics and Standards** - Dynamic stiffness as a function of frequency and temperature \[30, 40\] - Damping coefficient and loss factor \[30, 40\] - Fatigue life under multiaxial loading \[30, 31\] - Performance degradation due to environmental exposure \[31\] - Relevant standards include proprietary aerospace specifications, ISO/IEC 17025 \[20\] for test lab accreditation, and ASTM standards adapted for aerospace requirements ![A diagram of different types of objectsAI-generated content may be incorrect.](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/fatigue-testing-in-rubber-compounds-understanding-long-term-performance/6b039da4.png?width=1200&quality=75) Fig. X.  Construction of typical elastomeric shock absorbers: (a) rectangular prism, (b)straight circular cylinder; blocks of thin-layer rubber-metal elements: (c) –rectangular,  (d) –cylindrical form,  (e) –conical form,  (f) –spherical pad, (g) –spherical nozzle,  (f) spherical hinge; 1 –rubber layer, 2 –metal layer \[30\] ![A close-up of a machineAI-generated content may be incorrect.](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/fatigue-testing-in-rubber-compounds-understanding-long-term-performance/99b235bf.png?width=1200&quality=75) (d) ![A round container with black objects in itAI-generated content may be incorrect.](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/fatigue-testing-in-rubber-compounds-understanding-long-term-performance/ff8282c2.png?width=1200&quality=75) Figure X:  From the left: (a) view of MTS tensile machine, (b) absorber during the initial phase tests, (c) absorber under static compression of 20 mm, and (d) an example of vibration isolators during ageing in fuel and oil mixture. ### **Conclusion** Fatigue testing is an indispensable tool for materials engineers working with rubber compounds. By understanding the relevant standards (ASTM D430 \[2\], D813 \[4\], D4482 \[5\], ISO 6943 \[17\]) and learning from industry applications in automotive \[26, 32, 33\], medical \[18, 19, 36-39\], and aerospace \[28-31, 40,41\] sectors, engineers can better predict long-term performance and prevent premature failures. Whether working with traditional molded rubbers or emerging 3D printed elastomers, a comprehensive approach to fatigue testing, combined with environmental condition testing \[6-8, 14-16, 25, 31\], ensures that rubber components will perform reliably throughout their intended service life \[21-24, 27\]. The examples from tire testing, medical device packaging, and aerospace vibration isolation demonstrate that while the fundamental principles of fatigue testing remain constant \[2, 17\], each application requires tailored testing protocols that reflect real-world loading conditions, environmental exposures, and performance requirements \[26, 38\]. ### **References** #### **Standards** 1. ASTM D412-16. _Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension_. ASTM International, West Conshohocken, PA. [https://store.astm.org/d0412-16.html](https://store.astm.org/d0412-16.html) 2. ASTM D430-06(2018). _Standard Test Methods for Rubber Deterioration—Dynamic Fatigue_. ASTM International, West Conshohocken, PA. [https://store.astm.org/d0430-06r18.html](https://store.astm.org/d0430-06r18.html) 3. ASTM D623-19. _Standard Test Methods for Rubber Property—Heat Generation and Flexing Fatigue in Compression_. ASTM International, West Conshohocken, PA. [https://store.astm.org/d0623-07r19e01.html](https://store.astm.org/d0623-07r19e01.html) 4. ASTM D813-07(2018). _Standard Test Method for Rubber Deterioration—Crack Growth_. ASTM International, West Conshohocken, PA. [https://store.astm.org/d0813-07r19.html](https://store.astm.org/d0813-07r19.html) 5. ASTM D4482-11(2021). _Standard Test Method for Rubber Property—Extension Cycling Fatigue_. ASTM International, West Conshohocken, PA. [https://store.astm.org/d4482-11r21.html](https://store.astm.org/d4482-11r21.html) 6. ASTM D395-18. _Standard Test Methods for Rubber Property—Compression Set_. ASTM International, West Conshohocken, PA. [https://store.astm.org/d0395-18.html](https://store.astm.org/d0395-18.html) 7. ASTM D471-16a. _Standard Test Method for Rubber Property—Effect of Liquids_. ASTM International, West Conshohocken, PA. [https://store.astm.org/d0471-16a.html](https://store.astm.org/d0471-16a.html) 8. ASTM D1149-16. _Standard Test Method for Rubber Deterioration—Cracking in an Ozone Controlled Environment_. ASTM International, West Conshohocken, PA. [https://store.astm.org/d1149-16.html](https://store.astm.org/d1149-16.html) 9. ASTM F88/F88M-21. _Standard Test Method for Seal Strength of Flexible Barrier Materials_. ASTM International, West Conshohocken, PA. [https://store.astm.org/f0088\_f0088m-21.html](https://store.astm.org/f0088_f0088m-21.html) 10. ASTM F1929-15. _Standard Test Method for Detecting Seal Leaks in Porous Medical Packaging by Dye Penetration_. ASTM International, West Conshohocken, PA. [https://store.astm.org/f1929-15.html](https://store.astm.org/f1929-15.html) 11. ASTM F1980-16. _Standard Guide for Accelerated Aging of Sterile Barrier Systems for Medical Devices_. ASTM International, West Conshohocken, PA. [https://store.astm.org/f1980-16.html](https://store.astm.org/f1980-16.html) 12. ASTM F2096-19. _Standard Test Method for Detecting Gross Leaks in Packaging by Internal Pressurization (Bubble Test)_. ASTM International, West Conshohocken, PA. [https://store.astm.org/f2096-11r19.html](https://store.astm.org/f2096-11r19.html) 13. ISO 37:2024. _Rubber, vulcanized or thermoplastic—Determination of tensile stress-strain properties_. International Organization for Standardization, Geneva, Switzerland. [https://www.iso.org/standard/86892.html](https://www.iso.org/standard/86892.html) 14. ISO 815-1:2019. _Rubber, vulcanized or thermoplastic—Determination of compression set—Part 1: At ambient or elevated temperatures_. International Organization for Standardization, Geneva, Switzerland. [https://www.iso.org/standard/74943.html](https://www.iso.org/standard/74943.html) 15. ISO 1431-1:2024. _Rubber, vulcanized or thermoplastic—Resistance to ozone cracking—Part 1: Static and dynamic strain testing_. International Organization for Standardization, Geneva, Switzerland. [https://www.iso.org/standard/86601.html](https://www.iso.org/standard/86601.html) 16. ISO 1817:2024. _Rubber, vulcanized or thermoplastic—Determination of the effect of liquids_. International Organization for Standardization, Geneva, Switzerland. [https://www.iso.org/standard/86602.html](https://www.iso.org/standard/86602.html) 17. ISO 6943:2017. _Rubber, vulcanized—Determination of tension fatigue_. International Organization for Standardization, Geneva, Switzerland. [https://www.iso.org/standard/72790.html](https://www.iso.org/standard/72790.html) 18. ISO 11607-1:2019. _Packaging for terminally sterilized medical devices—Part 1: Requirements for materials, sterile barrier systems and packaging systems_. International Organization for Standardization, Geneva, Switzerland. [https://www.iso.org/standard/70799.html](https://www.iso.org/standard/70799.html) 19. ISO 11607-2:2019. _Packaging for terminally sterilized medical devices—Part 2: Validation requirements for forming, sealing and assembly processes_. International Organization for Standardization, Geneva, Switzerland. [https://www.iso.org/standard/70800.html](https://www.iso.org/standard/70800.html) 20. ISO/IEC 17025:2017. _General requirements for the competence of testing and calibration laboratories_. International Organization for Standardization, Geneva, Switzerland. [https://www.iso.org/standard/66912.html](https://www.iso.org/standard/66912.html) #### **Research Articles and Technical Papers** 21. Mars, W.V., and Fatemi, A. (2002). "A Literature Survey on Fatigue Analysis Approaches for Rubber." _International Journal of Fatigue_, 24(9), pp. 949-961. [https://doi.org/10.1016/S0142-1123(02)00008-7](https://doi.org/10.1016/S0142-1123(02)00008-7) 22. Mars, W.V., and Fatemi, A. (2004). "Factors that Affect the Fatigue Life of Rubber: A Literature Survey." _Rubber Chemistry and Technology_, 77(3), pp. 391-412. [https://doi.org/10.5254/1.3547831](https://doi.org/10.5254/1.3547831) 23. Tee, Y.L., Loo, M.S., and Andriyana, A. (2018). "Recent Advances on Fatigue of Rubber after the Literature Survey by Mars and Fatemi in 2002 and 2004." _International Journal of Fatigue_, 110, pp. 115-129. [https://doi.org/10.1016/j.ijfatigue.2018.01.007](https://doi.org/10.1016/j.ijfatigue.2018.01.007) 24. Li, F., Liu, J., Mars, W.V., Chan, T.W., Lu, Y., Yang, H., and Zhang, L. (2025). "Rubber Fatigue Revisited: A State-of-the-Art Review Expanding on Prior Works by Tee, Mars and Fatemi." _Polymers_, 17(7), 918. [https://doi.org/10.3390/polym17070918](https://doi.org/10.3390/polym17070918) 25. Luo, R., Wu, J., Mortel, W.J., and Liu, X. (2019). "Strain Energy-Based Rubber Fatigue Life Prediction Under the Influence of Temperature." _Royal Society Open Science_, 6(8), 180951. [https://doi.org/10.1098/rsos.180951](https://doi.org/10.1098/rsos.180951) 26. National Highway Traffic Safety Administration (NHTSA). (2014). _NHTSA Tire Aging Test Development Project - Phase 2 Evaluation: Laboratory Aging of Tires_. Report No. DOT HS 811 885, U.S. Department of Transportation, Washington, DC. Available at: [https://www.nhtsa.gov/sites/nhtsa.gov/files/811885\_tireagingtestdevelopmentprojectphase2evallab.pdf](https://www.nhtsa.gov/sites/nhtsa.gov/files/811885_tireagingtestdevelopmentprojectphase2evallab.pdf) 27. Bauman, J.T. (2008). _Fatigue, Stress and Strain of Rubber Components: Guide for Design Engineers_. Carl Hanser Verlag, Munich, Germany. 28. Kelly, J.M., and Konstantinidis, D.A. (2011). _Mechanics of Rubber Bearings for Seismic and Vibration Isolation_. John Wiley & Sons, Chichester, UK. 29. Hinks, W.L. (2013). "Laminated-Rubber Bearings: Heavy Duty Composites for Aerospace and Undersea." Presentation at the Spring 2013 183rd Technical Meeting of the Rubber Division of the American Chemical Society, Randolph Research Co. [https://www.slideshare.net/slideshow/presentation-rubber-div/18856094#24](https://www.slideshare.net/slideshow/presentation-rubber-div/18856094#24)  30. Kravchenko, O.G., Kravchenko, S.G., and Sun, C.T. (2017). "Aging, Fatigue and Durability of Rubber Vibration Isolation Elements." _Environment. Technologies. Resources. Proceedings of the International Scientific and Practical Conference_, 1, pp. 137-142. [https://doi.org/10.17770/etr2017vol3.2664](https://doi.org/10.17770/etr2017vol3.2664)  31. Dębski, M., Mądry, A., and Ostrowski, P. (2022). "The Fatigue Wear Process of Rubber-Metal Shock Absorbers." _Materials_, 15(6), 2110. [https://doi.org/10.3390/polym14061186](https://doi.org/10.3390/polym14061186) #### **Industry and Technical Resources** 32. Shahrostambeik, A. (2025). "Heat Build-Up Fatigue in Rubber Materials." Technical Blog. [https://ctherm.com/resources/newsroom/blog/heat-build-up-fatigue/](https://ctherm.com/resources/newsroom/blog/heat-build-up-fatigue/) 33. ACE Laboratories. (2025). "Rubber Fatigue Testing - Purpose & Test Types." Technical Resources. [https://www.ace-laboratories.com/rubber-fatigue-testing/](https://www.ace-laboratories.com/rubber-fatigue-testing/) 34. AdvanSES Laboratory. (2025). "Fatigue Testing of Rubber Materials: ASTM D430, ASTM D813 and ASTM D4482." Technical Resources. [https://advanses.com/fatigue-testing-of-rubber-materials/](https://advanses.com/fatigue-testing-of-rubber-materials/) 35. NextGen Material Testing. (2025). "The Importance of Rubber Material Testing in Product Durability." Technical Blog. [https://www.nextgentest.com/blog/the-importance-of-rubber-material-testing-in-product-durability/](https://www.nextgentest.com/blog/the-importance-of-rubber-material-testing-in-product-durability/) 36. Packaging Compliance Labs (PCL). (2020). "Seal Strength Testing." Technical Resources. Available at: [https://pkgcompliance.com/seal-strength-testing/](https://pkgcompliance.com/seal-strength-testing/) 37. FlexPak Inc. (2024). "Seal Strength Test Methods: Ensuring Package Integrity and Safety." Technical Resources. Available at: [https://flexpakinc.com/seal-strength-test-method/](https://flexpakinc.com/seal-strength-test-method/) 38. Vantage Medtech. (2025). "What Goes Into Medical Device Package Integrity Testing?" Technical Resources. Available at: [https://vantagemedtech.com/medical-device-package-integrity-testing/](https://vantagemedtech.com/medical-device-package-integrity-testing/) 39. ProTech Design. (2024). "Understanding the Basics of Medical Device Packaging Testing." Technical Resources. Available at: [https://protechdesign.com/articles/understanding-the-basics-of-medical-device-packaging-testing/](https://protechdesign.com/articles/understanding-the-basics-of-medical-device-packaging-testing/) 40. Greene Rubber Company. (2023). " Shock and Vibration Isolation Products" Product Catalog and Technical Resources. Available at: [https://www.greenerubber.com/shock-and-vibration/](https://www.greenerubber.com/shock-and-vibration/) 41. Enterprise Rubber. (2024). "Understanding Vibration Isolation Applications." Technical Resources. Available at: [https://enterpriserubber.com/blogs/news/vibration-isolation-applications](https://enterpriserubber.com/blogs/news/vibration-isolation-applications) 42. Strelkova, D., and Urbanic, R.J. (2025). "Brittle or Ductile? Effects of Print Orientation and Raster Angle on Polylactic Acid (PLA) Fused Filament Fabrication (FFF) Tensile Samples." SAE Technical Paper 2025-01-8335. [https://doi.org/10.4271/2025-01-8335](https://doi.org/10.4271/2025-01-8335) 43. Osswald, P.V., Obst, P., Mazzei, D., Maldonado, A., and Riess, G. (2021). "Material Anisotropy in Additively Manufactured Polymers and Polymer Composites: A Review." _Polymers_, 13(19), 3368. [https://doi.org/10.3390/polym13193368](https://doi.org/10.3390/polym13193368) 44. [https://journals.sagepub.com/doi/10.1177/09544070241231031](https://journals.sagepub.com/doi/10.1177/09544070241231031) 45. [https://www.mts.com/-/media/ground\_vehicles/pdfs/brochures/100-153-053c\_TireTreadWear.pdf?as=1](https://www.mts.com/-/media/ground_vehicles/pdfs/brochures/100-153-053c_TireTreadWear.pdf?as=1) 46. [https://www.mdpi.com/2075-5309/2/3/300](https://www.mdpi.com/2075-5309/2/3/300) ‍ ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Universal testing machine for rubber - LabsCubed benchtop tester and a specimen tray being loaded by hand](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-for-rubber-buyers-guide/6a6c62dd54cb89fa0482971a_Thumbnail--20Universal-20Testing-20Machine-20for-20Rubber-20LabsCubed-20Blog.webp?width=800&quality=75) Lab Automation 9 min read ### Universal Testing Machine for Rubber: 2026 Buyer Guide Choose a universal testing machine for rubber: grips, force ranges, and automated workflows that cut variability. See how LabsCubed automates rubber QA.](https://labscubed.com/post/universal-testing-machine-for-rubber-buyers-guide) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | How Temperature and Humidity Affects Tensile Strength in Plastics" description: "Discover how environmental conditions like temperature and humidity impact the tensile strength of plastics, including 3D printed parts. Essential insights for R&D managers and lab supervisors in plastics testing." url: https://labscubed.com/post/how-temperature-and-humidity-affects-tensile-strength-in-plastics --- ![How Temperature and Humidity Affects Tensile Strength in Plastics](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/how-temperature-and-humidity-affects-tensile-strength-in-plastics/How-Temperature-and-Humidity-Affects-Tensile-Strength-in-Plastics.png?width=1280&quality=75) # How Temperature and Humidity Affects Tensile Strength in Plastics [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) How Temperature and Humidity Affects Tensile Strength in Plastics [Data](https://labscubed.com/blog/category/data) June 29, 2026 9 min ## **Why Environment Matters for Your Materials** When a product is designed, materials are chosen carefully to perform under specific conditions. But what happens when those conditions change? For plastics, common factors like temperature and humidity aren't just minor details; they can significantly alter a material's strength and overall behavior. Understanding these environmental conditions is important for **R&D managers** and **lab supervisors** in **plastics testing**, as it directly impacts product reliability and safety. This article will explore how temperature and humidity influence **tensile strength** in both traditional and 3D printed plastics, and why controlling these factors is key to accurate material characterization. ## **Understanding Tensile Strength** Before diving into environmental effects, let's briefly recall tensile strength. It's a fundamental property measured by pulling a material until it breaks. The numbers tell us how much force a material can withstand (ultimate tensile strength) and how much it stretches (elongation) before failing. These values are critical for designing parts that won't break under expected loads. For a deep dive on this topic, visit our previous blog post: [What is Tensile Testing & Why it Matters in Materials Labs](https://labscubed.com/post/what-is-tensile-testing-and-why-it-matters). ## **The Impact of Temperature on Plastics** Temperature has a profound effect on material behavior, especially in plastics. Unlike metals, which melt at very high temperatures, plastics can soften or become brittle within their operational temperature ranges. ### **General Effects** - **Heat:** As temperature rises, plastics generally become softer, less stiff, and their tensile strength decreases. This is because the polymer chains gain more energy and move more freely. Many plastics have a **glass transition temperature (Tg​),** above which they transform from a rigid, glassy state to a more rubbery, flexible state, drastically reducing their strength. - **Cold:** Conversely, very low temperatures can make plastics more rigid and brittle. This increases their likelihood of fracturing suddenly under stress rather than deforming. ### **Specifics for Machined/Moulded Plastics** **Traditional plastic parts**, found in everything from car dashboards to electronic casings, are engineered to perform within specific temperature limits. For example, a car part exposed to summer heat must maintain its strength to prevent warping or failure. Engineers rely on plastics testing data at various temperatures to ensure these components remain functional and safe throughout their expected lifespan. ### **Specifics for 3D Printed Plastics** **3D printed plastics** can be even more sensitive to temperature. The layering process inherently creates areas of potential weakness (anisotropy). Temperature variations _during_ printing can affect layer adhesion and internal stresses, impacting the final part's tensile strength. In service, a 3D printed part's layered structure might respond differently to heat compared to its moulded counterpart, potentially showing reduced strength sooner or in unexpected ways. ## **The Impact of Humidity on Plastics** Beyond temperature, humidity effects are another critical environmental factor, particularly for plastics that absorb moisture. ### **General Effects (Hydrophilic vs. Hydrophobic)** - Some plastics, known as **hydrophilic** materials (e.g., Nylon, ABS), readily absorb moisture from the air. This absorbed water acts as a "plasticizer," making the material softer, more ductile, and less stiff. While this can sometimes increase impact resistance, it often leads to a significant reduction in **tensile strength** and Young's Modulus. - Other plastics are **hydrophobic** (e.g., Polypropylene, Polyethylene) and absorb very little moisture, making their properties less affected by humidity. ### **Specifics for Machined/Moulded Plastics** Moisture absorption is a major concern for parts used in damp environments, like water pipes, medical devices, or outdoor consumer goods. A component that performs well when dry might fail prematurely after absorbing moisture, highlighting the need for **plastics testing** under relevant humidity **environmental conditions**. ### **Specifics for 3D Printed Plastics** **3D printed plastics**, especially hygroscopic filaments (filaments that tend to absorb moisture from the air) like Nylon or PETG, are highly susceptible to moisture. Printing with wet filament can lead to poor print quality, bubbling, and weak layer adhesion, severely compromising the mechanical properties of the final part. Even after printing, the part continues to absorb moisture, leading to the same changes in tensile strength and stiffness observed in traditionally manufactured parts. For R&D managers overseeing additive manufacturing, proper filament storage and part conditioning are non-negotiable for reliable results. ## **Why Environmental Control Matters for Accurate Plastics Testing** Given these significant **temperature effects** and **humidity effects**, controlling **environmental conditions** during **plastics testing** is crucial for **lab supervisors**. Testing a material at a room temperature of 23°C (73°F) and 50% relative humidity (RH) as per many ASTM standards (e.g., [ASTM D618](https://store.astm.org/d0618-21.html) for conditioning plastics) provides a baseline, but understanding performance outside these conditions is often critical for real-world applications. Labs must use controlled environments/ environmental chambers and conditioning procedures to ensure test results truly reflect how a material will behave in its intended application, providing reliable data for **material behavior** prediction. ## **Case Study: The Hidden Impact of Moisture on 3D Printed Nylon CF** While absorbed moisture typically makes plastics softer and more ductile, the scenario for 3D printed hygroscopic materials can be more complex due to the printing process itself. Consider a case study comparing **3D printed Nylon Carbon Fiber (CF)** samples from two different material brands, where moisture control was a key variable. Strength data reported below is from tensile samples following the [ASTM D638](https://store.astm.org/d0638-14.html) standard printing flat on the build plate (X0 Y0 Z0 orientation). Figure 1 shows these two samples side by side for a visual comparison of moisture effects. - **Markforged ONYX printed on the Markforged X7 System (properly dried & stored filament):** These samples were printed with material that came guaranteed dried from the manufacturer and was stored immediately in a gasket sealed dry box upon opening and while printing to minimize moisture content. These tests revealed a **Young's Modulus (YM) of 840 MPa**. These samples also showed **lower yield stress (7.03 MPa), ultimate stress (30.5 MPa), and fracture stress (27.1 MPa)** compared to the Bambu Lab samples. Critically, they exhibited a **significantly higher strain at break (0.370)**. - **Bambu Lab PA6-CF printed on the Bambu Lab X1C System (dried on the printer bed after opening & improperly stored filament):** These samples were printed with filament not guaranteed dry from the manufacturer. Despite the user's attempt to dry it on the Bambu Lab X1C heated bed and store it in a dry box without a gasket seal during printing, it's likely this filament was not sufficiently dried or kept as dry as the Markforged material. Initial tensile tests showed a **much higher apparent Young's Modulus (YM) of 4190 MPa**. These samples also presented **higher yield stress (46.1 MPa), ultimate stress (71.4 MPa), and fracture stress (70.8 MPa)**. However, they had a **dramatically lower strain at break (0.0441)**. Figure 1: Properly dried Markforged ONYX (MF) versus improperly dried Bambu Lab PA6-CF (BL) print surface comparisons. In contrast, the properly dried material (Markforged ONYX), while exhibiting a **lower Young's Modulus** and lower initial stress values (meaning it's more flexible and less stiff initially), possesses a much more uniform and well-bonded internal structure. Its **significantly higher strain at break indicates that the 3D printed sample underwent more deformation before breaking**, unlike the improperly dried sample. This demonstrates its superior ductility and toughness, which are characteristic of a well-processed, properly dried material that can absorb more energy before breaking. This leads to better overall performance and reliability in real-world applications. This case starkly illustrates that even subtle moisture content in 3D printing filaments can dramatically alter the perceived and actual mechanical properties, emphasizing the importance of proper material handling. Beyond moisture, **print orientation among other process parameters can greatly influence the anisotropy of the 3D printed part, leading to significant variations in its final strength.** Below, Table 1 compares the two filaments across three different print orientations: X0Y0Z0, X0Y30Z0, and X0Y60Z0. This data was collected using an MTS Criterion Model 43 50 kN system, a Universal Tensile Machine (UTS). [**LabsCubed**](https://labscubed.com/) automated tensile systems can help streamline this data collection process, particularly the [**CubeTen**](https://labscubed.com/plastic-testing) for plastics testing. To learn how your lab can save time with automation, visit our article [**Understanding the Numbers: Tensile Data Collection and Saving Time with Automation**](https://labscubed.com/post/tensile-data-collection-and-saving-time-with-automation). **Table 1: Comparing tensile mechanical properties of Markforged Vs. Bambu Lab Nylon 6-CF 3D printed samples built in three different orientations** ## **Beyond the Lab Bench: Ensuring Real-World Performance** The **tensile strength** of plastics is not a static property; it's profoundly influenced by **environmental conditions** like temperature and humidity. For **R&D managers** and **lab supervisors**, understanding these **temperature effects** and **humidity effects** is crucial for accurate **plastics testing** and predicting **material behavior**. Whether dealing with conventionally manufactured or 3D printed plastics, ignoring these factors can lead to unreliable data, product failures, and costly recalls. By diligently controlling testing environments and considering real-world conditions, material professionals can ensure their products meet the highest standards of performance and durability. ## Keep reading [![Understanding the Numbers: Tensile Data Collection and Saving Time with Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-data-collection-and-saving-time-with-automation/Screenshot-2025-07-18-at-2.02.04-PM.png?width=800&quality=75) Data 7 min read ### Understanding the Numbers: Tensile Data Collection and Saving Time with Automation This article explains the importance of understanding and utilizing tensile testing data for better material selection. It highlights how raw test data, particularly the stress-strain curve, provides crucial material properties like ultimate tensile strength, yield strength, elongation at break, and Young's Modulus.](https://labscubed.com/post/tensile-data-collection-and-saving-time-with-automation)[![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | How to Choose Plastics Tensile Testing Equipment" description: "A practical guide for QA labs on choosing plastics tensile testing equipment—covering force range, grips, standards, and when automation pays off." url: https://labscubed.com/post/how-to-choose-plastics-tensile-testing-equipment --- ![Automated CubeTen plastics tensile testing equipment loading and gripping a specimen](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/how-to-choose-plastics-tensile-testing-equipment/cover-plastics-tensile-testing-equipment.webp?width=1280&quality=75) # How to Choose Plastics Tensile Testing Equipment [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) How to Choose Plastics Tensile Testing Equipment [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Testing Standards](https://labscubed.com/blog/category/testing-standards) June 12, 2026 4 min Choosing the right plastics tensile testing equipment determines whether your QA data is reliable, repeatable, and audit-ready — or a source of constant rework. This guide covers what to look for, which standards apply, and when automated testing makes more sense than manual. For high-volume plastics labs, LabsCubed's CubeTen automates specimen loading, testing, and reporting end-to-end so the workflow keeps pace with the frame. On this page 1. What plastics tensile testing actually measures 2. Key specs to evaluate when buying 3. Applicable standards for plastics tensile testing 4. When manual testing creates problems 5. Automated plastics tensile testing: what changes 6. Manual vs. automated: a quick comparison 7. Making the right choice 8. Frequently asked questions ## What plastics tensile testing actually measures A tensile test pulls a standardized plastic specimen at a controlled speed until it fractures or deforms permanently. The test records: - **Tensile strength** — the peak stress before failure - **Yield strength** — where permanent deformation begins - **Elongation at break** — how far the material stretches - **Elastic modulus (Young's modulus)** — stiffness under load These properties determine whether a material passes specification for injection-molded parts, extruded profiles, plastic films, or composite panels. ## Key specs to evaluate when buying Not all tensile frames perform equally for plastics. Prioritize five specs when comparing systems. **Force range** comes first: most rigid plastics and polymers require 1 kN to 30 kN, while thin films and flexible materials test below 500 N, so size the system to cover your full material range — oversized frames lose resolution at low forces. **Crosshead speed** matters because plastics are rate-sensitive; ASTM D638 specifies five speed designations across specimen types, so the machine needs the full range, from 1 mm/min for stiff polymers up to 500 mm/min for elastomers. **Grip selection** follows the specimen: wedge-action grips work for rigid dogbones, while pneumatic grips automate clamping for thin films and high-volume runs, and mismatched grips cause specimen slippage, invalid tests, and wasted material. For **strain measurement**, contact extensometers clip directly to the specimen, whereas non-contact video extensometers track optical marks without touching the material — essential for soft polymers where contact devices distort the reading. Finally, on **software and standards**, verify the software includes built-in test methods for ASTM D638, ISO 527, and ASTM D882 for thin films; configurable report templates and direct LIMS export save significant time in data transcription each week. ## Applicable standards for plastics tensile testing Three standards cover most plastics tensile work. Standards for plastics tensile testing | Standard | Scope | Key parameter | | --- | --- | --- | | ASTM D638 | Rigid and semi-rigid plastics | 5 specimen types, 5 speed classes | | ISO 527 | Plastics (metric equivalent of D638) | Common in EU and automotive OEMs | | ASTM D882 | Thin plastic sheeting and film | Narrow strips, high elongation | If your customers are North American automotive, ASTM D638 is the default. European programs typically specify ISO 527. Film and packaging lines run D882. Choose equipment validated for all three. For a deeper look at running tensile tests with automated equipment, see our [ASTM D638 testing guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing). ## When manual testing creates problems A well-configured manual tensile tester produces accurate data — until volume, variability, or throughput pressure enters the picture. Common failure points in manual plastics tensile testing labs: - **Grip placement inconsistency:** Two operators align the same dogbone differently. Stress concentrations shift. Yield strength results vary by up to 5–8% between technicians. - **Throughput bottlenecks:** A skilled technician runs roughly 20–30 specimens per eight-hour shift. High-volume labs run backlogs by midweek. - **Manual data entry errors:** Transcribing results to spreadsheets or LIMS introduces transcription errors — a CAPA trigger in regulated environments. - **Overnight downtime:** Manual testing stops when the technician leaves. The equipment sits idle for up to 16 hours per day. These are operational constraints, not equipment failures. You can have the right tensile frame and still face all of them. ## Automated plastics tensile testing: what changes ![Robotic gripping system loads a specimen on automated plastics tensile testing equipment](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/how-to-choose-plastics-tensile-testing-equipment/automated-cubeten-loading-gripping-system.webp?width=1200&quality=75) Robotic tensile testing addresses the operational layer, not just the mechanical one. An automated system handles specimen loading, grip actuation, test execution, and data transfer without manual intervention. What that means in practice: - **Consistent grip placement** on every specimen, eliminating operator-to-operator variability. - **Unattended overnight runs** — load a batch before you leave, review confirmed results in the morning. - **Direct data output** to your LIMS or ERP, with no transcription and no spreadsheet errors. - **Full audit trail** — timestamp, operator ID, grip force, and test parameters captured automatically on every run. For labs running more than 40–50 specimens per day, the ROI typically clears within 12–18 months in recovered technician time alone. See how LabsCubed's [plastics testing systems](https://labscubed.com/plastic-testing) handle high-volume QA for plastics and composites manufacturers. ## Manual vs. automated: a quick comparison The mechanical result can be identical on both paths; the difference shows up in throughput, consistency, and cost per test over time. | | Manual testing | Recommended CubeOne / CubeTen | | --- | --- | --- | | Throughput | 20–30 specimens/shift | Up to 100+ specimens/shift | | Operator dependency | High | Low | | Data consistency | Variable | Consistent | | Overnight operation | | | | Upfront cost | Lower | Higher | | Long-term cost per test | Higher | Lower | ## Making the right choice If you run low volumes of well-controlled specimen types, a well-specified manual tensile frame delivers what you need. Major OEM equipment brands produce reliable systems in this category. If your lab is bottlenecked by throughput, struggling with inter-operator variability, or needs audit-ready data traceability for regulated customers, automation is the faster path to process control. The decision comes down to a single question: are you bottlenecked by throughput or operator variability? If the answer is no — you run low, stable volume with well-controlled specimen types and only a light backlog — a well-specified manual frame is the right fit. If the answer is yes — you run 40+ specimens per day and need audit-ready data — the CubeTen, validated for ASTM D638 and ISO 527, is the path to process control. Ready to compare options for your specific testing volume and material types? [Get a quote from LabsCubed](https://labscubed.com/get-a-quote) — or download our white paper on [automation vs. manual testing](https://labscubed.com/white-paper-automation-vs-manual-testing) to build the business case internally. ## Frequently asked questions What does a plastics tensile test measure? A tensile test pulls a standardized plastic specimen at a controlled speed until it fractures or deforms permanently. It records tensile strength, yield strength, elongation at break, and elastic modulus, which determine whether a material passes specification for injection-molded parts, extruded profiles, plastic films, or composite panels. Which standards apply to plastics tensile testing? Three standards cover most plastics tensile work. ASTM D638 covers rigid and semi-rigid plastics and is the North American automotive default. ISO 527 is the metric equivalent, common in EU and automotive programs. ASTM D882 covers thin plastic sheeting and film. Choose equipment validated for all three. When does automated plastics tensile testing make sense? Automation addresses the operational layer rather than just the mechanical one, handling specimen loading, grip actuation, test execution, and data transfer without manual intervention. For labs running more than 40 to 50 specimens per day, the return typically clears within 12 to 18 months in recovered technician time alone. ### Compare options for your testing volume and materials Explore how LabsCubed's CubeTen automates specimen handling, testing, and reporting for high-volume plastics QA. Bring your standards, materials, and throughput numbers, and we'll map the fit. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials Testing Automation Specialists, LabsCubed The LabsCubed Team builds robotic, AI-driven systems for plastics, rubber, and composites QA labs. CubeOne and CubeTen are deployed in production labs across North America and Europe. ## Keep reading [![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ### Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation)[![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Lab Automation Robotics for Plastics and Rubber QA Teams" description: "Robotic lab automation is changing how plastics and rubber QA labs operate. Learn how to automate ASTM tests, cut variability, and scale testing throughput." url: https://labscubed.com/post/lab-automation-robotics-for-plastics-rubber-qa-teams --- ![Lab automation robotics cover for plastics and rubber QA teams](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/lab-automation-robotics-for-plastics-rubber-qa-teams/cover-lab-automation-robotics.webp?width=1280&quality=75) # Lab Automation Robotics for Plastics and Rubber QA Teams [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Lab Automation Robotics for Plastics and Rubber QA Teams [Lab Automation](https://labscubed.com/blog/category/lab-automation) June 18, 2026 9 min If your QA lab runs dozens of tensile or flexural tests each week, you already know the bottleneck: skilled technicians spending hours on repetitive specimen prep, grip alignment, and data entry — work that adds cost without adding insight. Lab automation robotics changes that equation. Robotic systems now handle every step from specimen loading to data export, letting your team focus on the decisions that actually require human judgment. This guide covers what lab automation robotics means for materials testing specifically — not pharma, not biotech — and what QA Directors, Plant Managers, and R&D leads in plastics and rubber manufacturing need to know before evaluating systems. ![Lab automation robotics system testing plastics and rubber specimens in a QA lab](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/lab-automation-robotics-for-plastics-rubber-qa-teams/inblog-lab-automation-robotics-2.webp?width=1200&quality=75) ## What Is Lab Automation Robotics? Lab automation robotics is the integration of robotic arms, motion systems, and software into laboratory workflows to execute tasks with precision and repeatability. In a materials testing environment, that means a robotic system that can: - Load specimens into a tensile frame without manual handling - Align grips consistently across hundreds of tests - Trigger test sequences, capture force-displacement data, and export results automatically - Log timestamps, batch IDs, and test conditions to a centralized data system The distinction from traditional automation — like a motorized test frame — is that robotic systems are programmable and flexible. They can switch between test types, handle different specimen geometries, and integrate with your LIMS or ERP without manual reconfiguration between runs. ## Why Traditional Materials Testing Struggles to Scale Manual materials testing works — until volume increases, regulations tighten, or staffing becomes unpredictable. The core problem is not that your team is doing anything wrong. Human performance naturally varies between shifts, operators, and stress levels. In ASTM-governed tests like D638 or D412, even small differences in grip placement or crosshead speed startup can shift results by several percent. Three pain points consistently drive QA labs toward robotic automation: 1. **Throughput walls** — A skilled technician can realistically run 20–30 tensile tests per shift. A robotic system runs significantly more with no quality degradation between test one and test two hundred. 2. **Operator-to-operator variability** — Grip torque, specimen centering, and load cell zeroing all introduce variability when done manually. Robots repeat the same action within microns every time. 3. **Audit trail gaps** — Manual data entry creates opportunities for transcription errors and incomplete records. Automated systems timestamp and log every test event automatically — which matters when a customer or regulator asks you to prove your process. If you are assessing whether automation makes sense, start by understanding [how tensile data collection bottlenecks compound over time](https://labscubed.com/post/tensile-data-collection-and-saving-time-with-automation) — the hidden labor cost is usually larger than it first appears. ## Manual vs. Automated Materials Testing: A Side-by-Side Look The economics depend on your test volume, material types, and regulatory requirements. Here is how the two approaches compare across the factors that matter most to QA operations: | | Manual testing | Recommended CubeOne / CubeTen | | --- | --- | --- | | Throughput per shift | 20–30 tests | 100+ tests (varies by test type) | | Grip consistency | Operator-dependent | Programmed, repeatable to ±0.1 mm | | Data logging | Manual entry; error-prone | Automatic timestamping and export | | ASTM compliance audit trail | Incomplete; relies on manual notes | Full, automated, searchable log | | Operator skill requirement | High — affects result quality | Lower — robot handles execution | | Cost per test at scale | Increases with volume | Decreases as volume grows | | Night and weekend operation | Requires staffing | Lights-out capable | The cost-per-test argument deserves emphasis. At low volumes, manual testing is cheaper. The economics typically shift somewhere between 50 and 200 tests per week depending on your labor rate and test complexity. Above that threshold, robotic automation usually pays for itself in under two years. ## Which Materials Tests Are Best Suited to Robotic Automation? Not every materials test is equally automatable. The highest ROI comes from tests that are high-volume, standardized by ASTM or ISO, and sensitive to operator variability. For plastics and rubber labs, the strongest candidates are: - **ASTM D638 / ISO 527** — Tensile properties of plastics. High volume, standardized dumbbell specimens, grip-sensitive. A natural fit for robotic specimen handling. - **ASTM D412** — Tensile properties of vulcanized rubber. Dogbone specimens with defined gauge length — precise robot loading eliminates grip inconsistency. - **ASTM D790 / ISO 178** — Flexural properties. Three-point bend setup benefits from consistent span alignment that robots deliver every test. - **ASTM D882** — Tensile properties of thin plastic film. Delicate specimens that benefit from controlled, gentle robotic grip application. If your lab runs any of these methods manually at volume, robotic automation is likely cost-justified. For a grounding in what these tests measure before evaluating automation, see [what tensile testing is and why it matters for materials QA labs](https://labscubed.com/post/what-is-tensile-testing-and-why-it-matters). ## How LabsCubed Applies Lab Automation Robotics to Materials Testing LabsCubed builds robotic testing systems specifically for plastics, rubber, and composites labs — not repurposed pharma automation. CubeTen for plastics and CubeOne for rubber integrate a robotic arm with a standard tensile frame, specimen magazine, and software layer that handles the full test workflow from specimen pickup through result export. In practice, that workflow runs as a continuous loop: #### Load Specimens load from a cassette — no operator required between tests. #### Align Grip alignment is programmatic, not operator-adjusted each run. #### Test The test runs to your ASTM or ISO method, capturing force-displacement data automatically. #### Log Every test event is timestamped and logged, producing a complete audit trail for compliance reviews. #### Export Results export directly to your data system — no transcription step between the machine and your records. The system is designed around existing ASTM test methods, not new workflows. Labs do not retrain teams on new procedures; they reallocate technician time from running tests to reviewing results — where materials expertise has the most leverage. Ready to see how it fits your testing program? [Join the CubeGo waitlist](https://labscubed.com/get-a-quote) and our team will evaluate your test volume and specimen types directly. ## What to Look for When Evaluating Lab Automation Robotic Systems Not all robotic lab automation platforms are designed for materials testing. When evaluating systems, prioritize: - **Specimen compatibility** — Does it handle your specific geometries: dumbbells, dog bones, thin films, flex bars, or round specimens? - **Standards alignment** — Is the system validated against the ASTM or ISO methods you report against, or will you need to validate it yourself? - **Data integration** — Can results feed directly into your LIMS, ERP, or cloud storage without a manual export step? - **Audit trail capability** — Does the system log every test event automatically and make that log retrievable for customer or regulatory review? - **Scalability** — Can you add test types or increase throughput as production volume grows, without replacing the core system? Avoid systems that require extensive custom programming to change between test methods. In a QA lab running multiple material families and product lines, flexibility matters as much as raw throughput. ## Frequently Asked Questions What is lab automation robotics? Lab automation robotics is the use of robotic systems and software to perform repetitive laboratory tasks — including specimen handling, test execution, and data collection — with minimal human intervention. In materials testing environments, robotic automation replaces manual gripping, alignment, and result logging with consistent, programmable workflows that repeat exactly the same way on every test, every shift. How does robotic automation improve accuracy in materials testing? Robotic automation eliminates the most common source of variability in materials testing: human execution differences between operators and shifts. When a robot loads specimens and aligns grips with the same programmed parameters every test, results reflect the actual material properties — not technician variation. Labs using automated systems typically see significantly tighter standard deviation across repeat tests and far fewer data transcription errors compared to manual workflows. Which ASTM tests can be automated in a plastics or rubber testing lab? Several high-volume ASTM methods are well-suited to robotic automation, including ASTM D638 (tensile properties of plastics), ASTM D412 (tensile properties of rubber), ASTM D790 (flexural properties), and ASTM D882 (thin plastic film tensile). Automated systems like the LabsCubed CubeTen and CubeOne handle specimen loading, grip alignment, test execution, and data export for these methods — at throughput levels a manual lab cannot sustain over a full shift without fatigue-related variability. ### Ready to give your QA team its time back? Book a walkthrough of CubeTen for plastics and CubeOne for rubber. We'll evaluate your test volume, specimen types, and standards directly. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials Testing Automation Specialists, LabsCubed The LabsCubed Team builds robotic, AI-driven systems for plastics, rubber, and composites QA labs. CubeTen and CubeOne are deployed in production labs across North America and Europe. ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Universal testing machine for rubber - LabsCubed benchtop tester and a specimen tray being loaded by hand](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-for-rubber-buyers-guide/6a6c62dd54cb89fa0482971a_Thumbnail--20Universal-20Testing-20Machine-20for-20Rubber-20LabsCubed-20Blog.webp?width=800&quality=75) Lab Automation 9 min read ### Universal Testing Machine for Rubber: 2026 Buyer Guide Choose a universal testing machine for rubber: grips, force ranges, and automated workflows that cut variability. See how LabsCubed automates rubber QA.](https://labscubed.com/post/universal-testing-machine-for-rubber-buyers-guide) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Materials Testing Automation: How Plastics and Rubber Labs Run 3× More Tests Per Shift" description: "Discover how materials testing automation helps plastics and rubber labs reduce manual errors, triple throughput, and meet ASTM standards — without adding headcount." url: https://labscubed.com/post/materials-testing-automation-guide --- ![Materials testing automation for plastics and rubber labs with robotic tensile testing](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/materials-testing-automation-guide/cover.webp?width=1280&quality=75) # Materials Testing Automation: How Plastics and Rubber Labs Run 3× More Tests Per Shift [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Materials Testing Automation: How Plastics and Rubber Labs Run 3× More Tests Per Shift [Lab Automation](https://labscubed.com/blog/category/lab-automation) June 4, 2026 4 min Your QA team runs the same tensile test 40 times a day. Each cycle requires a technician to load the specimen, zero the crosshead, run the test, record the result, and reset the fixture — 4 to 6 minutes per sample. At that pace, a 200-sample batch takes two full days, and one distracted moment can void an entire set of results. Materials testing automation changes that math. Labs switching from manual to automated specimen handling routinely see throughput double or triple — with fewer errors, not more. ## Why manual testing creates a QA bottleneck ![Manual tensile testing bottleneck in a plastics and rubber QA lab that materials testing automation removes](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/materials-testing-automation-guide/body-1.webp?width=1200&quality=75) Manual testing is reliable when volumes are low. But in high-volume plastics and rubber production — where a single shift might generate hundreds of samples requiring QA sign-off — manual testing simply cannot keep pace. The problems compound: - **Operator variability.** Even skilled technicians produce slight inconsistencies in grip alignment, preload application, and specimen centering. Over hundreds of tests, that variability adds noise to your data. - **Throughput ceiling.** A technician can realistically run 80–120 tensile tests per 8-hour shift. Automated systems run 300–500. - **Compliance risk.** ASTM D638, ISO 527, and [ASTM D412](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) all require precise specimen preparation and test conditions. Manual handling introduces variables that are difficult to document — and harder to defend in an audit. The bottleneck is not your testing equipment. It is every manual step around it. ## What materials testing automation actually looks like Modern automated testing systems combine a universal testing machine (UTM) with robotic specimen handling. The robot picks specimens from a tray, loads them into the grips, initiates the test, captures the data, and deposits the tested sample — all without operator intervention. At LabsCubed, our [HERO Lab system](https://labscubed.com/hero-lab) adds an AI-powered vision layer that confirms specimen geometry, grip seating, and test validity in real time. If a specimen is malformed or misloaded, the system flags it before the test runs — not after. The result: every test in a 500-sample batch runs under identical conditions, with a full digital audit trail. Your QA data is cleaner, compliance documentation is automatic, and your technicians are free to do analysis work instead of repetitive loading. | | Manual testing | Recommended CubeOne / CubeTen | | --- | --- | --- | | Tensile tests per 8-hour shift | 80–120 | 300–500 | | Specimen handling | Manual loading and reset | Robotic specimen handling | | Grip alignment | Operator-dependent | Consistent, every specimen | | Specimen validity check | After the test, if at all | AI vision flags before the pull | | Audit trail | Manual entry | Full digital record | | 200-sample batch turnaround | Up to two days | A single shift | ## Real ROI: what automation means for plastics and rubber manufacturers Labs replacing manual tensile testing with automated systems typically see: - **Up to 2–3× throughput increase** — with the same headcount. - **Up to 60–70% reduction in operator time** — spent on specimen handling. - **Near-zero retests** — from handling errors. - **Faster time-to-release** — batches that took two days to clear QA now clear in a single shift. For a mid-sized rubber manufacturer running quality tests across 10 production compounds per week, that throughput improvement translates directly to faster release cycles and reduced inventory holding costs. Our [white paper on automation vs. manual testing](https://labscubed.com/white-paper-automation-vs-manual-testing) walks through a full ROI model with real cycle times and cost comparisons. ## What to look for in a materials testing automation system Not every automated testing system is built for plastics and rubber. Before evaluating vendors, check these factors: - **Specimen geometry compatibility.** Dog-bone specimens (ASTM D638 / ISO 527) behave differently from dumbbell specimens (ASTM D412). Your system needs grips and handlers designed for your material type. - **Standards compliance.** Confirm the system supports your required test standards — including correct crosshead speeds, preload procedures, and strain measurement methods. - **Software integration.** Can test data feed directly into your LIMS or ERP? Manual CSV exports create data gaps and delay reporting. - **Scalability.** A system that handles tensile today should accommodate flexural, compression, or peel testing tomorrow. LabsCubed builds systems specifically for [plastics testing](https://labscubed.com/plastic-testing) and [rubber testing](https://labscubed.com/rubber-testing) — designed around the specimen types and test standards your lab already uses, not adapted from generic industrial robotics. CubeTen handles plastics workflows and CubeOne handles rubber and elastomers, so the system matches the specimens you already run. ## Frequently asked questions What does materials testing automation actually look like? A modern automated system combines a universal testing machine with robotic specimen handling. The robot picks specimens from a tray, loads them into the grips, initiates the test, captures the data, and deposits the tested sample without operator intervention, so every test in a batch runs under identical conditions with a full digital audit trail. How much throughput improvement can automation deliver? Labs replacing manual tensile testing with automated systems typically see up to a 2 to 3 times throughput increase with the same headcount, up to a 60 to 70 percent reduction in operator time spent on specimen handling, and batches that took two days to clear QA now clearing in a single shift. What should I look for in a materials testing automation system? Check specimen geometry compatibility for your material type, confirm the system supports your required standards such as ASTM D638, ISO 527, and ASTM D412, verify it can feed test data directly into your LIMS or ERP, and make sure it can scale to flexural, compression, or peel testing as your needs grow. ## Getting started The fastest way to evaluate automation ROI for your lab is to run the numbers against your current test volume and cycle times. We have done this analysis with dozens of QA teams and can model it for your specific workflow in a 30-minute conversation. [Request a quote](https://labscubed.com/get-a-quote) or reach out to talk through your lab's testing requirements — no pressure, just a clear picture of what automation looks like for your operation. ### Clear the QA bottleneck in your lab See how LabsCubed's CubeTen and CubeOne systems automate plastics and rubber tensile testing from specimen loading to audit-ready reporting. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials Testing Automation Specialists, LabsCubed The LabsCubed Team builds robotic, AI-driven systems for plastics, rubber, and composites QA labs. CubeOne and CubeTen are deployed in production labs across North America and Europe. ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Universal testing machine for rubber - LabsCubed benchtop tester and a specimen tray being loaded by hand](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-for-rubber-buyers-guide/6a6c62dd54cb89fa0482971a_Thumbnail--20Universal-20Testing-20Machine-20for-20Rubber-20LabsCubed-20Blog.webp?width=800&quality=75) Lab Automation 9 min read ### Universal Testing Machine for Rubber: 2026 Buyer Guide Choose a universal testing machine for rubber: grips, force ranges, and automated workflows that cut variability. See how LabsCubed automates rubber QA.](https://labscubed.com/post/universal-testing-machine-for-rubber-buyers-guide) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Polymer Mechanical Testing: Methods, Standards & Automation" description: "Learn polymer mechanical testing methods, ASTM standards, and how automated systems like LabsCubed's Cube reduce variability in plastics and rubber QA labs." url: https://labscubed.com/post/polymer-mechanical-testing-methods-standards-automation --- ![Polymer mechanical testing automation with LabsCubed CubeTen system](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-mechanical-testing-methods-standards-automation/cover-polymer-mechanical-testing.webp?width=1280&quality=75) # Polymer Mechanical Testing: Methods, Standards & Automation [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Polymer Mechanical Testing: Methods, Standards & Automation [Testing Standards](https://labscubed.com/blog/category/testing-standards) [Lab Automation](https://labscubed.com/blog/category/lab-automation) August 7, 2026 9 min Polymer mechanical testing measures how plastics and rubber respond to applied stress — tension, compression, flexure, and impact — against standardized test methods like ASTM D638 and ISO 527. Labs use these results to confirm materials meet spec before they reach production. At LabsCubed, we work alongside QA teams who run hundreds of these tests per week, and our CubeTen system automates the plastics workflow end-to-end. Here is what you need to know about the methods, the standards, and where automation changes the outcome. On this page 1. What is polymer mechanical testing? 2. What types of tests are used? 3. What ASTM standards apply? 4. Manual vs. automated polymer testing 5. Common mistakes and how to avoid them 6. How do you choose the right testing machine? 7. FAQ ## What Is Polymer Mechanical Testing? Polymer mechanical testing is the set of laboratory procedures used to measure how plastic and rubber materials behave under controlled mechanical loads. The tests apply force — tension, compression, bending, or impact — and record how the material deforms, where it yields, and at what point it breaks. Results feed into material selection decisions, supplier qualification, product design validation, and regulatory compliance. For a plastics manufacturer, a batch that fails tensile strength spec should never reach the production line. For a rubber compounder, elongation-at-break data directly predicts how the final part performs in the field. Every major industry that uses polymers — automotive, medical devices, consumer packaging, aerospace — relies on mechanical test data to make or reject materials. The quality of that data depends on the test method, the lab environment, and increasingly, the degree to which testing has been automated to remove operator influence. ## What Types of Tests Are Used in Polymer Mechanical Testing? The four core test families cover the full range of mechanical stress a polymer is likely to see in service. Each maps to specific ASTM and ISO standards. ### What is tensile testing for polymers? Tensile testing pulls a dumbbell-shaped specimen along its long axis until it breaks. It produces tensile strength, yield strength, elongation at break, and Young's modulus in a single run. For [plastics testing](https://labscubed.com/plastic-testing), ASTM D638 and ISO 527 are the governing standards. For rubber, ASTM D412 and ISO 37 apply. Tensile testing is the most common single test in polymer QA because the data is comprehensive and directly tied to end-use performance. Crosshead speed is a key variable: stiffer materials typically test at 5 mm/min, while soft elastomers may require 500 mm/min. Running the wrong speed is one of the most common testing errors (more on this below). See: [ASTM D638 / ISO 527 tensile testing for plastics](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) and [ASTM D412 tensile testing for rubber](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing). ![Tensile testing of a polymer specimen in polymer mechanical testing](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/polymer-mechanical-testing-methods-standards-automation/tensile-testing-polymer.png?width=1200&quality=75) ### What is flexural testing for polymers? Flexural testing (also called bend testing) places a bar specimen across two supports and applies a load at the midpoint, measuring flexural strength and flexural modulus. ASTM D790 and ISO 178 govern this test for rigid and semi-rigid plastics. Flexural properties are especially relevant for structural components like brackets, housings, and panels. Read our detailed breakdown: [ASTM D790 / ISO 178 explained](https://labscubed.com/posthttps://labscubed.com/post/astm-d790-iso-178-explained-everything-you-need-to-know-about-plastic-flexural-testing). ![Flexural bend testing of a polymer bar in polymer mechanical testing](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/polymer-mechanical-testing-methods-standards-automation/flexure-testing-polymer.webp?width=1200&quality=75) ### What is compression testing for polymers? Compression testing measures how a specimen responds to squeezing force — compressive strength, yield point, and deformation behavior. ASTM D695 and ISO 604 are the primary standards. This test is critical for foam, sealants, gaskets, and any polymer used in load-bearing applications where crushing force is the primary stress mode. ![Compression testing of a polymer specimen in polymer mechanical testing](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/polymer-mechanical-testing-methods-standards-automation/compression-testing-polymer.png?width=1200&quality=75) ### What is impact testing for polymers? Impact tests measure energy absorbed when a specimen fractures under sudden load. The two main methods are Izod (ASTM D256) and Charpy (ASTM D6110 / ISO 179). Impact data identifies whether a material will be brittle or ductile in a real-world collision or drop event. Temperature significantly affects impact behavior — a polymer that passes at room temperature may fail at -20°C. Surface hardness rounds out the property profile alongside tensile, flexural, compression, and impact. For a worked example using Shore D and Rockwell R on a common thermoplastic, see our guide to the hardness of polypropylene. ## What ASTM Standards Apply to Polymer Mechanical Testing? The most widely referenced standards for polymer mechanical testing are summarized below. Polymer mechanical testing standards by test type | Test Type | ASTM Standard | ISO Equivalent | Applies To | | --- | --- | --- | --- | | Tensile (plastics) | ASTM D638 | ISO 527 | Rigid & semi-rigid plastics | | Tensile (rubber) | ASTM D412 | ISO 37 | Vulcanized & thermoplastic rubber | | Tensile (film/sheet) | ASTM D882 | ISO 527-3 | Thin plastic films (<1 mm) | | Flexural | ASTM D790 | ISO 178 | Rigid & semi-rigid plastics | | Compression | ASTM D695 | ISO 604 | Rigid plastics, foams | | Izod Impact | ASTM D256 | ISO 180 | Notched specimens, rigid plastics | | Charpy Impact | ASTM D6110 | ISO 179 | Plastics, composites | | Hardness (Shore) | ASTM D2240 | ISO 868 | Rubber, soft plastics | ASTM and ISO standards are not always interchangeable — specimen geometry and conditioning requirements differ between them. Always confirm with the customer or regulator which standard applies before running a batch. ## Manual vs. Automated: How Does Automation Change Polymer Testing? Most lab teams run polymer mechanical testing manually: a technician cuts specimens, mounts them in the grips, starts the test, records the result, and repeats. This works at low volume, but it introduces variability at every handoff. The gripping force varies slightly between operators. Specimen alignment drifts. Data gets re-keyed from the machine display into a spreadsheet. Robotic systems like LabsCubed's **CubeTen** for plastics — and **CubeOne** for rubber and elastomers — automate the entire sequence: specimen loading, grip seating, test execution, and data capture, removing operator influence from the repetitive steps. The result is not just faster throughput. It is more consistent data, which is what actually matters when you are qualifying a material or defending a test result to a customer. | | Manual Testing | Recommended CubeOne / CubeTen | | --- | --- | --- | | Specimen loading | Hand-placed; grip force varies by operator | Robotic arm; repeatable grip force every cycle | | Alignment | Visual check; subject to human error | Sensor-verified; alignment is enforced mechanically | | Throughput | Typically 15–30 specimens/hr (one tech) | Up to 60–80 specimens/hr unattended | | Data capture | Manual entry or export; re-keying risk | Direct to LIMS / database; no re-keying | | Operator-to-operator variability | Present at grip, alignment, and data steps | Eliminated at automated steps; CV typically lower | | Night / weekend runs | Not practical without overtime | Unattended — runs complete while the lab is empty | | Audit trail | Paper log or manual CSV | Timestamped digital record per specimen | The automation angle is what most competitors in this space miss. Published content on polymer mechanical testing focuses almost entirely on test types and standards — it rarely addresses the fact that **the biggest source of variability in a mature lab is not the method, it is the operator**. Automation solves that problem systematically. Read more: [Automation vs. manual testing white paper](https://labscubed.com/white-paper-automation-vs-manual-testing). ## What Are the Most Common Mistakes in Polymer Mechanical Testing? Even well-run labs make these errors. Each one affects your data reproducibility. 1. **Wrong crosshead speed for the material type.** Stiff thermoplastics test at 5 mm/min; soft elastomers at 500 mm/min. Running a soft rubber at 5 mm/min produces artificially low elongation values. The standard specifies the speed — check it before every run type. 2. **Specimen dimensions outside tolerance.** ASTM D638 Type I, II, III, IV, and V all have different gauge lengths and widths. Mixing types between batches makes results non-comparable. Die-cut specimens drift over time as dies wear — check dimensions on a sample basis each week. 3. **Off-center gripping.** A specimen gripped 2–3 mm off-center introduces bending stress, which lowers tensile strength and increases scatter. This is the single most common manual-testing error and the primary one that robotic loading eliminates. 4. **Testing at the wrong temperature or humidity.** Polymers are viscoelastic — their mechanical properties change significantly with temperature and moisture. ASTM standards specify conditioning (typically 23°C ± 2°C, 50% RH ± 5%). Skipping the conditioning step produces systematically biased data. 5. **Mismatched load cell range.** A 10 kN load cell measuring a 50 N rubber specimen will operate at 0.5% of full scale — well outside accurate range. Match the load cell to the expected break force, targeting 20–80% of capacity for best accuracy. Temperature and humidity effects are explored further in our post: [How temperature and humidity affect tensile strength in plastics](https://labscubed.com/post/how-temperature-and-humidity-affects-tensile-strength-in-plastics). ## How Do You Choose a Polymer Mechanical Testing Machine? The right universal testing machine (UTM) for polymer work depends on four parameters: - **Force range.** Soft rubbers break at under 100 N; fiber-reinforced composites may require 100 kN. Most polymer labs need a 5–50 kN machine with interchangeable load cells. - **Speed range.** Elastomer testing requires crosshead speeds up to 500 mm/min or higher. Confirm the machine's speed specification covers your full material range. - **Grip type.** Pneumatic grips deliver consistent grip force regardless of operator; manual screw grips depend on individual technique. For high-volume or automated labs, pneumatic or hydraulic grips are the practical choice. - **Automation readiness.** If throughput is a constraint, evaluate from the start whether the machine can integrate with robotic specimen handling. Retrofitting automation to a machine not designed for it is expensive and often incomplete. Thinking about automation for your lab? [See how automated data collection saves time at the post-test step](https://labscubed.com/post/tensile-data-collection-and-saving-time-with-automation). ## Frequently Asked Questions About Polymer Mechanical Testing What is polymer mechanical testing? Polymer mechanical testing measures how a plastic or rubber material responds to applied forces — tension, compression, flexure, and impact — using standardized methods such as ASTM D638, D790, D695, and D256. Labs use these results to confirm materials meet specification and qualify suppliers before production begins. What are the most important types of polymer mechanical testing? The four core test types for polymers are tensile (ASTM D638 / ISO 527), flexural (ASTM D790 / ISO 178), compression (ASTM D695 / ISO 604), and impact (ASTM D256 / ISO 180). Tensile testing is the most common because it produces tensile strength, elongation, and modulus in a single run. How does automated polymer testing reduce variability? Manual testing introduces variability at grip loading, alignment, and data entry — all steps that depend on the individual operator. Robotic systems like LabsCubed's CubeTen and CubeOne automate specimen loading, grip seating, and data capture end-to-end, removing operator influence from the repetitive steps that drive batch-to-batch scatter. ### Take the operator out of the variability equation Explore how LabsCubed's CubeTen and CubeOne systems automate specimen loading, testing, and reporting for plastics and rubber QA labs. Bring your standards, your materials, and your throughput numbers, and we will map the fit. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials Testing Automation Specialists, LabsCubed LabsCubed designs and builds robotic testing systems for plastics and rubber QA labs, with hands-on experience deploying automated tensile, flexural, and impact testing workflows across the automotive, medical device, and consumer goods industries. Learn more at [labscubed.com](https://labscubed.com). ## Keep reading [![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ### Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation)[![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Polymer Tensile Test: Procedure, Standards & Automation" description: "Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure." url: https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation --- ![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/COVER---Polymer-Tensile-Test---LABSCUBE-BLOG.webp?width=1280&quality=75) # Polymer Tensile Test: Procedure, Standards & Automation [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Polymer Tensile Test: Procedure, Standards & Automation [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Testing Standards](https://labscubed.com/blog/category/testing-standards) [Lab Automation](https://labscubed.com/blog/category/lab-automation) August 13, 2026 9 min A polymer tensile test pulls a standardized dog-bone specimen until it breaks, measuring how a plastic, rubber, or composite responds to stress and strain. **It is the workhorse mechanical test for polymers**, governed mainly by ASTM D638 and ISO 527. At LabsCubed, CubeOne and CubeTen automate the procedure end-to-end so labs can run more tests with less operator-to-operator variability. ### Key takeaways - A polymer tensile test pulls a dog-bone specimen to break, reporting tensile strength, elongation, and modulus — governed mainly by ASTM D638 and ISO 527. - Specimen alignment is the single largest source of operator-to-operator variability; skipped conditioning and the wrong crosshead speed are the next most common errors. - Automating load, align, pull, and log removes the manual steps that cause drift — raising throughput up to 240 specimens per shift while keeping a per-specimen audit trail. On this page 1. What is a polymer tensile test? 2. Which standards govern polymer tensile testing? 3. How is a polymer tensile test performed? 4. What does a polymer tensile test measure? 5. Manual vs. automated polymer tensile testing 6. What are the most common mistakes in polymer tensile testing? 7. How does automation reduce variability in polymer tensile tests? 8. Frequently asked questions 9. Where to go next ## What is a polymer tensile test? A polymer tensile test is a mechanical test that stretches a dog-bone-shaped plastic, rubber, or composite specimen at a controlled speed until it yields or breaks. The test reports tensile strength, elongation at break, and modulus of elasticity. It is the most common procedure for qualifying polymer grades, validating injection-molded parts, and meeting customer specifications. Polymer tensile testing differs from metals testing in three ways: specimens are typically dog-bone (not round), strain rates are slower (often 5–50 mm/min), and temperature plus humidity matter more because polymers are viscoelastic. Most QA labs run the test daily on incoming resin lots, regrind batches, and outgoing parts. For background on what tensile testing actually measures, see our overview on [why tensile testing matters](https://labscubed.com/post/what-is-tensile-testing-and-why-it-matters). ## Which standards govern polymer tensile testing? Two standards dominate: ASTM D638 (used primarily in North America) and ISO 527 (used in Europe, Asia, and most multinational supply chains). Both define specimen geometry, conditioning, test speed, and how to calculate tensile strength, yield, and modulus. Customer specifications usually dictate which one applies. ASTM D638 specifies five rigid-plastic specimen types (Types I through V) at different scales, with Type I being the default for materials thicker than 7 mm. ISO 527-2 uses Type 1A (injection-molded) and Type 1B (machined) specimens. The gauge lengths and overall dimensions are similar but not interchangeable, and switching between standards without re-validating the data set is a frequent source of inter-lab disagreement. LabsCubed's [ASTM D638 / ISO 527 automated tensile testing](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) setup supports both standards in the same workflow. ## How is a polymer tensile test performed? A polymer tensile test follows five steps: specimen preparation, conditioning, alignment in the grips, controlled-rate pulling, and data capture. The specimen is mounted between two grips, an extensometer (or video extensometer) tracks strain in the gauge section, and the load cell records force. The machine then pulls at a constant crosshead rate until break. ### Specimen preparation Specimens are either injection-molded directly to ASTM D638 Type I geometry or machined from a plaque or finished part. Edges must be free of nicks, burrs, and tool marks because every flaw is a stress concentrator that drops the apparent tensile strength. After cutting, specimens are conditioned at 23 °C and 50% relative humidity for at least 40 hours, per the standard. ### Specimen alignment Misalignment is the single largest source of operator-to-operator variability in polymer tensile testing. If the specimen sits crooked in the grips, bending stresses are added to the tensile load, the data drifts low, and you get inter-operator differences that look like material problems. Manual labs typically resolve this with alignment jigs and operator training; automated systems remove it entirely. ### Test setup and data capture Crosshead speed is set per the standard — typically 5 mm/min for modulus and 50 mm/min for strength on rigid plastics. The extensometer measures strain across the gauge length, the load cell records force, and the software calculates tensile stress (load ÷ cross-sectional area) and tensile strain (extension ÷ gauge length). Modulus comes from the slope of the initial linear region. ## What does a polymer tensile test measure? A polymer tensile test produces three primary outputs: tensile strength at yield or break (MPa), elongation at break (%), and Young's modulus (MPa or GPa). For ductile materials such as polypropylene, the curve shows a clear yield point, a plateau, and a break. For brittle materials such as polystyrene or many filled composites, the curve climbs and breaks with little plastic deformation. Secondary outputs include offset yield strength (for materials without a defined yield), strain at yield, and the stress-strain area used to estimate toughness. Result variation is real and material-driven: even an in-spec polypropylene grade can show 5–10% variability between specimens, which is why ASTM D638 requires reporting the mean and standard deviation of at least five specimens per sample. ## Manual vs. automated polymer tensile testing The biggest gap in published polymer tensile testing content is the workflow comparison. Manual testing is well-documented; what changes when the entire procedure — load, align, pull, eject, log — is automated is rarely covered. This table shows the practical differences a QA manager sees on the lab floor. | | Manual testing | Recommended CubeOne / CubeTen | | --- | --- | --- | | Specimen loading | Operator picks each dog-bone, aligns it by eye or jig, tightens grips | Robot picks from a tray, aligns to a mechanical reference, closes pneumatic grips at a set torque | | Alignment variability | Typically 1–3% strength variation between operators | Reduced to specimen-driven variation only | | Throughput per shift | 40–80 specimens, depending on operator and resin | Up to 240 specimens per shift, depending on workflow | | Data logging | Manual entry or per-test CSV export, often re-keyed into LIMS | Streamed into LIMS with specimen ID, lot, and audit trail per pull | | Audit trail | Notebook entries, paper logs, occasional gaps | Per-specimen metadata, timestamps, machine state — complete | For the full cost and ROI logic behind these numbers, see the LabsCubed [automation vs. manual testing white paper](https://labscubed.com/white-paper-automation-vs-manual-testing). ## What are the most common mistakes in polymer tensile testing? Even well-trained labs lose data to a small number of repeatable errors. The most damaging ones come from specimen handling and alignment rather than the test itself. - **Skipping conditioning** — running specimens straight off the molding press, before the 40-hour conditioning at 23 °C / 50% RH, gives results that drift over the next two days. For more, see [how temperature and humidity affect tensile strength](https://labscubed.com/post/how-temperature-and-humidity-affects-tensile-strength-in-plastics). - **Misaligned specimens** — a specimen rotated even 2–3 degrees in the grips adds a bending component and biases the strength low. This is the single largest contributor to operator-to-operator variability. - **Wrong crosshead speed** — modulus is rate-dependent for polymers; running at 50 mm/min when the standard calls for 5 mm/min produces an inflated modulus that fails customer correlation later. - **Mixing standards** — reporting an ASTM D638 strength against an ISO 527 customer spec without explicit conversion is a common audit finding in multinational supply chains. - **Untracked re-tests** — discarding a specimen as “bad grip” without logging it breaks traceability. Automated systems log every attempt by default. ## How does automation reduce variability in polymer tensile tests? Automation reduces variability by removing the human steps that introduce it. A robotic system loads each specimen against the same mechanical reference, closes the grips at the same torque, runs the same test profile, and logs every result with a specimen ID. The remaining variation is material variation — the part you actually want to measure. In a typical LabsCubed deployment, a CubeOne system handles ASTM D638 Type I specimens in a single tray, while CubeTen runs ten trays unattended for overnight throughput. The output is a per-specimen record with stress-strain curve, calculated properties, and full audit metadata streamed into the customer's LIMS. For a deeper look at the data side, see our note on [tensile data collection with automation](https://labscubed.com/post/tensile-data-collection-and-saving-time-with-automation). Automation does not replace materials judgment. A QA engineer still defines the test plan, reviews flagged results, and signs off on lot dispositions. What it removes is the manual repetition that produces the operator-to-operator drift labs typically blame on the material. ## Frequently asked questions What is ASTM D638 for polymer tensile testing? ASTM D638 is the standard test method for the tensile properties of rigid and semi-rigid plastics. It defines five dog-bone specimen geometries, conditioning at 23 °C / 50% RH, crosshead speeds typically between 5 and 50 mm/min, and how to calculate tensile strength, elongation, and modulus. It is the default polymer tensile test in North America and the closest ASTM analog to ISO 527. What specimen dimensions are used for a polymer tensile test? ASTM D638 Type I specimens are the most common choice: 165 mm overall length, 13 mm wide at the gauge section, 19 mm wide at the grip ends, and a nominal 3.2 mm thickness. ISO 527-2 Type 1A specimens are similar but use a 150 mm overall length and 10 mm gauge width. Customer specs usually call out the exact type to use. Why is a dog-bone specimen used for polymer tensile testing? The dog-bone shape forces the specimen to break in the narrow gauge section rather than at the grips. The wider grip ends spread the clamping load over more area, which keeps grip stress below the material strength. This means the recorded failure reflects the bulk material, not a grip-induced flaw. Round and rectangular specimens cause grip-region breaks that invalidate the test. How is a polymer tensile test procedure performed? The procedure is: cut or mold a dog-bone specimen to the standard, condition it for 40 hours, measure cross-section, mount in the grips with the gauge centered, attach an extensometer, pull at the specified crosshead rate, and record load versus extension until break. The software calculates stress and strain, and the lab reports the mean and standard deviation across at least five replicate specimens. What is the difference between ASTM D638 and ISO 527? Both measure polymer tensile properties but differ in specimen geometry, default speeds, and reporting. ASTM D638 Type I has a 50 mm gauge length and is widely used in the US; ISO 527-2 Type 1A has a 75 mm reference length and is the European default. Results are similar but not interchangeable, and most multinational labs run both rather than convert between them. ## Where to go next If you are scoping a polymer tensile testing workflow — whether to upgrade manual benchwork or build an automated cell from scratch — the first question is throughput: how many specimens per shift, on how many resin grades, with what audit requirements. From there the specifics fall out: standard, specimen type, grip selection, data path, and whether a CubeOne or CubeTen footprint fits the lab. For the related flexural method, see our [ASTM D790 flexural testing guide](https://labscubed.com/posthttps://labscubed.com/post/astm-d790-iso-178-explained-everything-you-need-to-know-about-plastic-flexural-testing). For a surface-property complement to tensile data, see our guide to the hardness of polypropylene. ### Scope your polymer tensile workflow Book a 20-minute walkthrough of CubeOne and CubeTen. Bring your standards, your materials, and your throughput numbers, and we'll map the automated cell that fits. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials Testing Automation Specialists, LabsCubed The LabsCubed Team builds robotic, AI-driven systems for plastics, rubber, and composites QA labs. CubeOne and CubeTen are deployed in production labs across North America and Europe. ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Polymer mechanical testing methods and standards](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-mechanical-testing-methods-standards-automation/thumb-polymer-mechanical-testing.webp?width=800&quality=75) Testing Standards Lab Automation 9 min read ### Polymer Mechanical Testing: Methods, Standards & Automation Learn polymer mechanical testing methods, ASTM standards, and how automated systems like LabsCubed's Cube reduce variability in plastics and rubber QA labs.](https://labscubed.com/post/polymer-mechanical-testing-methods-standards-automation) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Robotic Material Testing: The Complete Guide to Automating Your Lab" description: "Learn how robotic material testing improves throughput, repeatability, and data traceability in plastics, rubber, and composite laboratories." url: https://labscubed.com/post/robotic-material-testing --- ![Robotic Material Testing: The Complete Guide to Automating Your Lab](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/robotic-material-testing/Cover--Rubber-Testing-CubeOne-Machine--LabsCubed-Blog.webp?width=1280&quality=75) # Robotic Material Testing: The Complete Guide to Automating Your Lab [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Robotic Material Testing: The Complete Guide to Automating Your Lab [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) June 7, 2026 7 min When technicians spend more time loading specimens and recording results than analyzing data, testing becomes a bottleneck rather than a quality tool. **Robotic material testing replaces repetitive manual tasks with automated workflows** — integrating specimen handling, test execution, and digital reporting into one repeatable process. LabsCubed's CubeOne and CubeTen platforms combine robotics, AI-powered vision, and automated data collection to help plastics, rubber, and composite labs improve repeatability while scaling throughput. On this page 1. What is robotic material testing? 2. What problems does robotic material testing solve? 3. How does a robotic testing system work? 4. Which industries use robotic material testing? 5. Manual vs. robotic material testing 6. What should you look for in a robotic testing system? 7. How LabsCubed approaches robotic material testing 8. Frequently asked questions 9. Conclusion ## What is robotic material testing? Robotic material testing uses automated systems to perform specimen handling, alignment, testing, and data collection with minimal operator intervention. The universal testing machine (UTM) remains at the center of the process — what changes is everything around it. Robotic systems automate: - Specimen pick-and-place - Grip positioning - Test execution - Data acquisition - Result reporting Instead of performing repetitive tasks, technicians can focus on reviewing data and supporting quality decisions. ## What problems does robotic material testing solve? Manual workflows often involve individual specimen loading, visual alignment, grip adjustments, spreadsheet reporting, and repetitive setup steps. These activities consume time and introduce variation between operators. For high-volume labs, the challenge is often not the testing machine itself but the manual work between cycles. CubeOne and CubeTen address this through workflow automation — combining robotic specimen handling with AI-powered vision and automated reporting to create more repeatable test environments. ![Struggles of manual material testing in a quality control lab](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/robotic-material-testing/struggles-of-manual-material-testing.webp?width=1200&quality=75) ## How does a robotic testing system work? A robotic testing system automates specimen handling, test execution, and data capture to create a continuous workflow that supports unattended operation. #### Load Specimens are placed into trays, ready for the system to handle. #### Transfer A robotic system transfers each specimen to the testing area. #### Verify AI-assisted vision verifies positioning before the test begins. #### Test The test runs to predefined ASTM or ISO parameters; stress-strain data is captured automatically. #### Log Results are linked to specimen IDs and the system advances to the next specimen. See the [LabsCubed robotic arm](https://www.youtube.com/watch?v=RILG7TXhc-w) running this loop. ## Which industries use robotic material testing? Robotic testing systems are used wherever repeatability and throughput matter across many specimens. Labs testing multiple material families benefit most from standardized workflows. Robotic material testing by industry | Industry | Typical applications | | --- | --- | | Plastics | ASTM D638 and ISO 527 testing | | Rubber & elastomers | ASTM D412 and ISO 37 testing | | Composites | ASTM D3039 tensile testing | | Medical devices | Component and peel testing | | Metals | Tensile and yield verification | ## Manual vs. robotic material testing The largest benefit is often process consistency rather than speed alone. Reducing operator variability improves data reliability and lowers the need for retests. | | Manual workflow | Recommended Robotic workflow | | --- | --- | --- | | Specimen loading | Manual specimen loading | Automated pick-and-place | | Alignment | Visual alignment | AI-assisted positioning | | Reporting | Spreadsheet reporting | Automated data capture | | Setup | Operator-dependent setup | Higher repeatability | | Traceability | Manual traceability | Digital audit trails | | Utilization | Limited utilization | Continuous operation | ## What should you look for in a robotic testing system? The right system should support your standards, materials, and data requirements. Four criteria carry most of the decision. #### Standard compatibility Support for the methods you run — ASTM D638, ISO 527, ASTM D412, ISO 37, ASTM D790, and ASTM D624. #### Material compatibility Different specimen geometries require different gripping methods and handling logic. Confirm the system covers your material families. #### Software integration Look for data traceability, real-time reporting, QMS and LIMS integration, and digital audit trails. #### Scalability As throughput grows, the system should handle higher specimen volumes without increasing operator workload. ## How LabsCubed approaches robotic material testing LabsCubed treats automation as a complete workflow rather than a robotic accessory attached to a testing machine. CubeOne and CubeTen integrate robotic specimen handling, AI-powered vision, specimen validation, grip-seating verification, automated data collection, and digital audit-ready records. The objective is not simply faster testing — it is repeatable workflows from specimen loading to final reporting, with lower operator variability and improved data integrity. For the tensile-specific view, see our [automated tensile testing guide](https://labscubed.com/post/automated-tensile-testing). ## Frequently asked questions What is robotic material testing? Robotic material testing uses automated systems to perform specimen handling, testing, and data collection with minimal operator intervention. The universal testing machine remains the testing platform; robotics automate the pick-and-place, alignment, test execution, and reporting around it. Which industries benefit most from robotic testing? Plastics, rubber, composites, medical devices, and metals manufacturing all benefit from improved repeatability and higher throughput. Labs that test multiple material families gain the most from standardized, repeatable workflows. Does robotic material testing replace the universal testing machine? No. The universal testing machine (UTM) remains the testing platform. Robotics automate the workflow around the machine — specimen handling, alignment, data capture, and reporting — rather than replacing the load frame itself. ## Conclusion As testing volumes increase, manual workflows become increasingly difficult to scale. Robotic material testing helps laboratories improve repeatability, reduce operator variability, and maintain data traceability by automating specimen handling and reporting. By combining robotics, AI-powered vision, and digital workflows, LabsCubed's CubeOne and CubeTen systems help plastics, rubber, and composite laboratories transform testing from a collection of manual tasks into a repeatable, scalable process. ### Automate your testing workflow Explore how LabsCubed's CubeOne and CubeTen systems combine robotics, AI-powered vision, and automated reporting to create repeatable, audit-ready testing workflows. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials Testing Automation Specialists, LabsCubed The LabsCubed Team builds robotic, AI-driven systems for plastics, rubber, and composites QA labs. CubeOne and CubeTen are deployed in production labs across North America and Europe. ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ### Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Understanding the Numbers: Tensile Data Collection and Saving Time with Automation" description: "This article explains the importance of understanding and utilizing tensile testing data for better material selection. It highlights how raw test data, particularly the stress-strain curve, provides crucial material properties like ultimate tensile strength, yield strength, elongation at break, and Young's Modulus." url: https://labscubed.com/post/tensile-data-collection-and-saving-time-with-automation --- ![Understanding the Numbers: Tensile Data Collection and Saving Time with Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-data-collection-and-saving-time-with-automation/blog_laboratory_tensile_testing_labscubed.png?width=1280&quality=75) # Understanding the Numbers: Tensile Data Collection and Saving Time with Automation [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Understanding the Numbers: Tensile Data Collection and Saving Time with Automation [Data](https://labscubed.com/blog/category/data) July 18, 2025 7 min Learn how to understand and use tensile testing data for better material choices. Explore the importance of centralized data and how automated systems like LabsCubed's CubeOne and CubeTen improve lab efficiency and testing consistency. For a detailed analysis of key tensile properties and data processing, you can read our previous article: [**What is Tensile Testing & Why it Matters in Materials Labs**](https://labscubed.com/post/what-is-tensile-testing-and-why-it-matters) ## **Let’s Get Started** In the world of materials, making sure a product works as it should means understanding how the material performs under specific loads. Tensile testing helps by showing how materials react to stress, giving us important numbers about their strength and flexibility.  But getting those numbers is just the start. The real power comes from understanding and using the data that comes out of each test. This article will look at why data from tensile testing is so important, how to make sense of it, and how LabsCubed machines make handling this data much easier and more reliable. ## **From Test to Data: What You Get** Every time a material is pulled in a tensile test, a lot of information is collected. This includes the force applied and how much the material stretches. This raw information is then used to figure out key material properties like **ultimate tensile strength**, **yield strength**, and **modulus of elasticity**. The main output from a tensile test is a **stress-strain curve**.This curve is like a unique fingerprint for each material, showing its behavior from start to break. Figure 1 shows the generated stress-strain curves in the LabsCubed portal from previously collected tensile tests. Manually getting accurate measurements and then plotting these curves can be time-consuming and prone to human error. Figure 1: Example of a series of stress-strain curves from five rubber tensile tests with strain in % (ε) on the X-axis and stress (σ) in MPa on the Y-axis. ## **Making Sense of the Numbers: Understanding Your Data** Understanding the stress-strain curve and the numbers it provides is key to choosing the right material.  From this curve, essential properties are found: - **Ultimate Tensile Strength (UTS)** \- the highest stress a material can handle before it starts to break. - **Yield Strength** - the point where the material starts to change shape permanently. - **Elongation at Break** \- how much the material stretches before it snaps, showing how flexible it is. - **Young's Modulus (Modulus of Elasticity)** \- how stiff the material is. It's important to note that the numbers derived from the curve can vary depending on the material and testing rules. For example, with plastics ([ASTM D638](https://store.astm.org/d0638-14.html)), the **modulus of elasticity** (also known as Young’s Modulus) might be found using a specific "0.2% offset method". But for rubbers ([ASTM D412](https://store.astm.org/d0412-16r21.html)), tests focus on the stress needed to stretch the material to specific lengths (like 100% or 200%) to compare how stiff different rubbers are. ## **The Power of Centralized Data** Once tests are done, having all the results in one place is vital. When data is scattered, it's hard to find, compare, and use effectively. A central system, like the **LabsCubed Portal**, solves this. This portal lets users: - Look at stress-strain curves in an interactive way. - Review and compare results from many tests. - Export data easily (like to CSV or PDF files) - Even connect with other lab systems (like LIMS or ERP) to streamline workflows. This makes understanding and using your test data much simpler and faster. Figure 2 shows a screen capture of the LabsCubed Portal. The table underneath explains the features of this centralized system. A live walk through of the portal is shown in Figure 3. Figure 2: Labscubed portal overview after testing five rubber tensile tests (ASTM D412).
Interactive Stress-Strain Visualization (A)Real-time overlay of multiple curves for side-by-side comparison, with cursor tracking to inspect individual data points, such as strain, stress, and modulus at key elongations.
Batch Testing Reports and Statistical Summaries (B)Automatically calculates mean, median, standard deviation, and coefficient of variation (CoV) for stress, strain, and modulus values across test sets.
Specimen-Level Tracking (C)Each test includes timestamped records, operator ID, test speed, and precise specimen dimensions (measured and auto-detected), providing full traceability.
Flexible Data Filtering (D)Users can exclude or include specific samples, view slot-level test details, and customize which results are shown in summary calculations.
Export Options (E)Results are instantly available for download in CSV or PDF format, or can be exported directly into LIMS, ERP, or QA systems through API integration.
Figure 3: Quick demo of the LabsCubed portal on the CubeTen system. ## **Saving Time and Ensuring Consistent Results: The Automated Advantage** Manual tensile testing can lead to slow and inconsistent results because of human error at almost every step. Factors such as how a sample is placed or measured can change the outcome, even with calibrated machines. This takes up a lot of valuable time that could be spent on deeper analysis or other tasks. This is where automated systems like LabsCubed's [**CubeOne**](https://labscubed.com/rubber-testing) (for rubbers) and [**CubeTen**](https://labscubed.com/plastic-testing) (for plastics) change the game. They are designed to automate key parts of the testing process, directly solving many lab challenges: - **Automated Measurements:** Machines like CubeTen and CubeOne automatically measure sample thickness (and width for CubeTen). This means no more manual errors from rulers and calipers. - **Precise Loading and Gripping:** The systems automatically align and grip each sample. This removes guesswork and ensures each test starts consistently, reducing breaks outside the measured area. - **Increased Efficiency:** CubeOne can test up to 12 samples at a time, and CubeTen up to 15 samples. This high capacity, combined with automation, means labs can run many more tests quickly and without needing constant attention from technicians. CubeOne alone can save up to 85% of a team's time. - **Consistent Results:** By taking human variability out of key steps, these automated systems provide much more consistent and repeatable data across different tests, operators, or even different lab locations. Automating these steps not only saves time but also gives you data you can truly trust thanks to consistency in the testing procedure. A traditional tensile test using a Universal Testing Machine often involves manual steps that add up. A technician must carefully place the sample in the machine's clamps (crossheads) and attach the contact extensometer. Setting up the testing software also takes time. These initial steps alone can take **upwards of 8 minutes**.  After the test finishes, processing the raw data – like converting units, creating the stress-strain curve, and pulling out key results – can take **another 10 or more minutes**. This means at least **18 minutes per test**. Since standards typically require at least three samples for each material (as per [ASTM E111-17](https://holdsworthwiki.robarts.ca/files/astm_iso_standards/e111.10817.pdf) for modulus), this time quickly adds up. Automation through LabsCubed products removes the need for manual handling during testing and data processing. With these systems, the most time-consuming step is simply loading the samples into a tray. See Figure 4 for a workflow comparison of both of these test methods. Figure 4: Time comparison of traditional versus automated tensile testing workflows. ## **Summary** Understanding and managing data from tensile testing is essential for making smart material choices and creating reliable products. While traditional methods have their hurdles, modern automated systems like LabsCubed's [**CubeOne**](https://labscubed.com/rubber-testing) and [**CubeTen**](https://labscubed.com/plastic-testing) offer powerful solutions. By automating measurements, improving consistency, and providing clear data management, these systems help labs get accurate results. Choose automation to gain deeper insights into your materials and drive better product development. ## Keep reading [![How Temperature and Humidity Affects Tensile Strength in Plastics](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/how-temperature-and-humidity-affects-tensile-strength-in-plastics/How-Temperature-and-Humidity-Affects-Tensile-Strength-in-Plastics.png?width=800&quality=75) Data 9 min read ### How Temperature and Humidity Affects Tensile Strength in Plastics Discover how environmental conditions like temperature and humidity impact the tensile strength of plastics, including 3D printed parts. Essential insights for R&D managers and lab supervisors in plastics testing.](https://labscubed.com/post/how-temperature-and-humidity-affects-tensile-strength-in-plastics)[![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Tensile Strength Tester: A Buyer's Guide for QA Labs" description: "Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed." url: https://labscubed.com/post/tensile-strength-tester-buyers-guide --- # Tensile Strength Tester: A Buyer's Guide for QA Labs [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Tensile Strength Tester: A Buyer's Guide for QA Labs [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) August 13, 2026 9 min A tensile strength tester is a mechanical instrument that pulls a specimen apart under controlled load until it yields or fractures, then reports tensile strength, elongation, and modulus. For a plastics or rubber QA lab, the more important question in 2026 isn't what a tester does — **it's how much operator-to-operator variability it introduces**. LabsCubed's CubeOne and high-throughput CubeTen systems automate specimen handling and grip alignment, so results are repeatable across shifts and operators, not just within one technician's notes. ### Key takeaways - The frame has commoditized — what separates a manual UTM from a fully automated cell is the workflow around the frame, not the load cell. - Manual specimen prep and grip alignment typically introduce 5–10% test-to-test variability that the software never flags. - Automated cells deliver up to 3× more specimens per shift and an audit-grade trail by default. - If automation is on your 3-year roadmap, buy an automation-ready frame now — retrofitting a closed manual frame typically costs more than the frame. On this page 1. What is a tensile strength tester? 2. What does a tensile strength tester measure? 3. How does a tensile strength tester work? 4. Manual vs. automated tensile strength testers 5. Key features to look for when buying one 6. How much does a tensile strength tester cost? 7. ASTM and ISO standards covered 8. Common mistakes when buying or running one 9. Frequently asked questions 10. Next steps ## What is a tensile strength tester? A tensile strength tester is a load-frame instrument that applies a uniaxial pulling force to a specimen and records load and displacement until failure. The system uses a load cell to measure force, an extensometer or crosshead encoder to measure strain, and grips to hold the sample in line with the load axis. Output is a stress-strain curve, from which the lab extracts ultimate tensile strength, yield strength, modulus of elasticity, and elongation at break. In practice, the term covers two different categories. Bench-top "tensile testers" are compact, single-axis systems used for routine QC on plastics, films, rubber, and textiles. Full universal testing machines (UTMs) are larger frames that also run compression, flexure, and shear. The right choice depends on capacity, the standards you run (typically [ASTM D638 / ISO 527](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing), ASTM D412, or ASTM D3039), and whether you need to automate the workflow around the frame. ## What does a tensile strength tester measure? A tensile strength tester measures four primary properties: ultimate tensile strength (the peak stress before failure), yield strength (the stress at which the material starts to deform plastically), elastic modulus (the stiffness in the linear region), and elongation at break (the ductility). Each value is read from the stress-strain curve generated during the test. Secondary outputs depend on the standard and the specimen. For plastics under ASTM D638, the tester also reports Poisson's ratio and proportional limit when extensometers are fitted on both axes. For rubber under ASTM D412, it reports tensile stress at specific strains (M100, M300). For composites under ASTM D3039, it reports failure mode and strain-at-failure. The instrument is the same — the calculation rules differ by standard, which is why test method libraries inside the software matter as much as the hardware. ## How does a tensile strength tester work? A tensile strength tester works by clamping a specimen between two grips, moving the crosshead at a constant rate, and recording force and displacement until the specimen breaks. A typical test takes 30 seconds to a few minutes per specimen. The software converts force to stress using the cross-sectional area you enter, and displacement to strain using either the gauge length or a contact or non-contact extensometer. The procedure usually follows five steps: specimen prep (cutting and conditioning), measurement (thickness and width at three points), loading into the grips, running the test method, and reviewing the result against the spec. The first three steps are where most of the operator-introduced variability lives — bad alignment, uneven grip pressure, or sloppy measurement can shift a result by 5–10% without the software ever flagging an issue. That's the problem automated systems solve. ## Manual vs. automated tensile strength testers: which should you buy? Buy a manual tensile strength tester if you run fewer than 20 specimens per week, you don't have to defend repeatability across operators in audits, and your spec sheet rarely changes. Buy an automated system if you run high-volume QC, have multiple operators per shift, or need to keep up with a production line. Automation reduces operator-to-operator variability, frees a technician to do higher-value work, and produces an audit-grade trail by default. | | Manual tensile strength tester | Recommended CubeOne / CubeTen | | --- | --- | --- | | Specimen loading | Hand-loaded; alignment depends on operator | Robotic loading with vision-guided grip alignment | | Width / thickness measurement | Manual calipers; logged separately | Inline laser or vision; logged to the specimen record | | Throughput per shift | ~15–30 specimens | Up to 3× more, depending on workflow | | Operator variability | Typically 5–10% test-to-test | Down to load cell + extensometer repeatability | | Audit trail | Paper logs or manual exports | Time-stamped photos, dimensions, raw data, operator ID | | Unattended operation | | | The comparison is the core of the buying decision in 2026. The frame itself — load cell, crosshead, software — has commoditized across vendors. What separates a $20K manual UTM from a fully automated cell is the workflow around the frame, not the frame itself. For deeper coverage of how this plays out on the shop floor, see our guide to [automated tensile testing](https://labscubed.com/post/automated-tensile-testing). ## What key features should I look for when buying a tensile strength tester? Look for a load cell rated 1.5–2× your highest expected break load, a crosshead speed range that covers every standard you run, interchangeable grips for the materials you test, and a software stack that ships with the test methods you need. Then, separately, evaluate whether the platform supports automation — robotic specimen handling, inline measurement, and an open data API — even if you don't need it on day one. - **Load capacity with headroom** — a 5 kN frame is too small once you start testing thicker plastics or reinforced composites. - **Grip flexibility** — wedge for rigid plastics, pneumatic for film and rubber, capstan for thread and yarn. - **Extensometer options** — contact for routine QC, video for samples that fail in the gauge length. - **Software libraries** for **ASTM D638** / ISO 527, D412, D3039, plus your customer-specific methods. - **Open data export** — CSV is the floor; an API for LIMS integration is the ceiling. - **Automation-ready** hardware — tool-changers, robot mounts, vision interface, and a control bus a third-party cell can drive. If automation is in your three-year roadmap, the worst outcome is buying a closed manual frame and discovering later that bolting a robot onto it costs more than the frame did. Most plastics and rubber labs we work with end up here within 18 months of buying a manual system — see how that pattern plays out in [robotic material testing](https://labscubed.com/post/robotic-material-testing). ## How much does a tensile strength tester cost? A new tensile strength tester typically costs $10,000 to $160,000 for a manual UTM, depending on load capacity, software, and grips. A fully automated testing cell — frame plus robotic specimen handling, inline measurement, and integrated software — typically runs $150,000 to $400,000. Per-test cost on a manual system averages about $155 when you include labor, calibration, and re-tests; automated cells push that lower as throughput rises. Three line items drive the total: 1. **Frame and load cell** — usually 40–60% of a manual system, less of an automated one. 2. **Grips and fixtures** — easy to underestimate. A full set for plastics + rubber + composites can add $15,000–$30,000. 3. **Software and integration** — small for a single-method lab, large for a lab that runs 20+ methods and needs LIMS or ERP integration. For a full picture of ROI on an automated cell, the [automation vs. manual testing white paper](https://labscubed.com/white-paper-automation-vs-manual-testing) walks through the labor, throughput, and re-test math we use with customers. ## What ASTM and ISO standards does a tensile strength tester cover? A tensile strength tester covers ASTM D638 / ISO 527 for plastics, ASTM D412 / ISO 37 for rubber and elastomers, ASTM D3039 for fiber-reinforced composites, ASTM E8 / ISO 6892 for metals, and ASTM D882 for thin films. Each standard prescribes specimen geometry, conditioning, grip type, crosshead rate, and how to calculate the reported values. The tester is hardware; the standard is the recipe the software runs. If your lab serves multiple industries, make sure the system you choose ships with the standards already validated, not as a "we can write that for you" promise. Custom method development is where projects quietly slip three months. For the deep dive on the most common plastics method, see our [ASTM D638 / ISO 527 guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing); for rubber, see [ASTM D412 / ISO 37 for rubber](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing). ## Common mistakes when buying or running a tensile strength tester The most expensive mistakes are made at purchase, not during the test itself. Two patterns repeat in plastics and rubber labs we audit: - **Sizing the frame to today's load, not tomorrow's.** A 5 kN frame is enough for unfilled thermoplastics; add glass fiber or move to thicker geometry and you're back in the market within two years. - **Treating grips as an afterthought.** Wrong grip type is the single biggest source of slippage and false breaks. Buy the grip set for the materials you actually test. - **Skipping the extensometer.** Calculating strain from crosshead displacement is fine for go/no-go QC; it's wrong for any modulus or yield-strain reporting. - **Buying a closed software stack.** If you can't export raw load and displacement data, you can't audit a disputed result or feed a LIMS. - **Ignoring operator variability.** Most labs blame the material when results drift; a Gauge R&R study almost always points back to grip alignment and specimen prep. - **Skipping calibration cadence.** Annual calibration is the minimum; high-throughput labs should re-verify quarterly. ## Frequently asked questions What is a tensile strength tester? A tensile strength tester is a mechanical instrument that pulls a specimen apart under controlled load until it yields or breaks, measuring force and displacement throughout. It reports ultimate tensile strength, yield strength, elastic modulus, and elongation at break. In QA labs it's used to confirm that incoming materials and finished parts meet ASTM, ISO, or customer-specific specs before they ship. How can tensile strength be tested? Tensile strength is tested by cutting or molding a specimen to a standardized geometry, conditioning it, clamping it in grips on a load frame, and pulling at a constant crosshead rate until failure. The software records force and elongation and calculates stress and strain. ASTM D638 governs plastics; ASTM D412 governs rubber; ASTM D3039 governs composites; ASTM E8 governs metals. How much does a tensile strength test cost? A single outsourced tensile test typically costs about $155, depending on standard, specimen prep, and turnaround. Bringing testing in-house with a manual UTM runs $10,000 to $160,000 for the equipment; a fully automated cell runs $150,000 to $400,000. Per-test cost falls sharply with automation once volume passes about 200 specimens per month. What is the ASTM test for tensile strength? The ASTM test depends on the material. ASTM D638 is the dominant standard for rigid and semi-rigid plastics; ASTM D412 covers vulcanized rubber and thermoplastic elastomers; ASTM D3039 covers polymer-matrix composites; ASTM E8 covers metals; ASTM D882 covers thin plastic film. Each standard prescribes the specimen geometry, conditioning, grip type, crosshead rate, and reporting rules the tester must follow. What is the difference between a tensile strength tester and a universal testing machine? A tensile strength tester is purpose-built for pulling tests; a universal testing machine (UTM) can also run compression, flexure, and shear with the right fixtures. Most modern frames sold as "tensile testers" are technically UTMs configured for tension only. If you'll ever need compression or flex testing, buy the UTM up front — retrofitting an entry-level pull-only frame is rarely cost-effective. Can a tensile strength tester be automated? Yes. Automated cells add robotic specimen handling, inline width and thickness measurement, vision-guided grip alignment, and unattended batch operation. Platforms like LabsCubed's CubeOne automate a single frame; CubeTen scales the same workflow to high-throughput production environments. Automation typically increases throughput by up to 3× and reduces operator-to-operator variability to the repeatability of the load cell and extensometer. ## Next steps If you're scoping a tensile strength tester for a plastics or rubber QA lab, start by listing the standards you run, your weekly specimen count, and how many operators touch the workflow. That's enough to decide whether you're buying a manual frame, an automation-ready frame, or a full cell. ### Scoping a tensile strength tester for your lab? Book a 20-minute walkthrough of CubeOne and CubeTen. We'll bring your standards, your materials, and your numbers. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials testing automation, LabsCubed The LabsCubed team builds robotic tensile testing systems used by plastics, rubber, and composite QA labs across North America. We specialize in reducing operator-to-operator variability and turning manual UTM workflows into audit-grade automated cells. ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ### Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation)[![Composite Material Testing: Methods, Standards, and Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/composite-material-testing/Composite-Compression-Test---LabsCubed.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ### Composite Material Testing: Methods, Standards, and Automation Learn the key composite material testing methods, ASTM standards, and how automation improves throughput, repeatability, and data quality.](https://labscubed.com/post/composite-material-testing) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Tensile Test of Composite Materials: A Practical Guide" description: "Tensile test of composite materials made simple: specimen prep, fixtures, standards, and how automation cuts variability. See the guide and run cleaner tests." url: https://labscubed.com/post/tensile-test-of-composite-materials-practical-guide --- ![Tensile test of composite materials - carbon fibre specimen in tensile grips with a stress-strain curve on the lab monitor](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-test-of-composite-materials-practical-guide/6a6c85e13e2eb766e3bc35c8_Cover-20--20Tensile-20Test-20of-20Composite-20Materials-20--20LabsCubed-20Blog.webp?width=1280&quality=75) # Tensile Test of Composite Materials: A Practical Guide [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Tensile Test of Composite Materials: A Practical Guide [Testing Standards](https://labscubed.com/blog/category/testing-standards) August 13, 2026 9 min A tensile test of composite materials measures how much pulling force a laminate can take and how far it stretches before failing — the source of properties like ultimate tensile strength, modulus, and strain to failure. It looks like a metal tensile test but behaves nothing like one: anisotropy, tab failures, and grip slip can quietly ruin a batch of coupons. **This guide walks through the standards, specimen prep, fixtures, data work, and the manual habits that typically cost composite labs the most time.** LabsCubed's CubeOne and CubeTen systems automate that workflow so the test is run the same way every time. ### Key takeaways - ASTM D3039 is the dominant standard for tensile testing polymer matrix composites; D638, D3518 and D5083 cover specific cases. - Most variability in composite tensile data comes from prep and mounting, not from the pull itself — typically 4–8% CV on modulus across operators. - Automating coupon measurement, loading and imaging removes the operator-to-operator spread and gives every coupon an auditable record. On this page 1. What is a tensile test of composite materials? 2. Which standards govern composite tensile testing? 3. How do you prepare a composite specimen for tensile testing? 4. What grips, fixtures, and strain measurement should you use? 5. How do you analyze and interpret composite tensile data? 6. Manual vs. automated tensile testing of composites 7. Common mistakes in composite tensile testing 8. How automation reduces operator-to-operator variability 9. Frequently asked questions ## What is a tensile test of composite materials? A tensile test of composite materials applies a uniaxial pulling load to a flat coupon — usually a polymer matrix laminate reinforced with carbon, glass, or aramid fiber — until it fails. The machine records load and displacement, and an extensometer or strain gauge records strain in the gauge section. From those signals the lab calculates ultimate tensile strength, tensile (Young's) modulus, Poisson's ratio, and strain at failure. The hard part is not the pulling. Composites are anisotropic, sensitive to specimen geometry, and prone to gripping artifacts. A coupon that fails inside the grips, slips, or breaks at a tab line gives data the standards explicitly say to discard. That is why most composite labs spend more time on specimen prep and fixture setup than on the test itself. ## Which standards govern composite tensile testing? Four standards cover the vast majority of composite tensile work in plastics and aerospace labs: - **ASTM D3039 / D3039M** — the dominant standard for polymer matrix composites. Used for unidirectional, cross-ply, and woven laminates. Specifies rectangular coupons with optional bonded tabs. - **ASTM D638** — written for unreinforced and reinforced plastics. Often used for short-fiber composites and discontinuous reinforcements where D3039 coupon geometry is impractical. - **ASTM D3518** — the ±45° in-plane shear test, run on the same machine using the D3039 fixture set. Many labs run D3039 and D3518 back-to-back on the same laminate. - **ISO 527-4 / 527-5** — the international equivalents of D3039, with slightly different coupon dimensions and reporting. - **ASTM D5083** — for reinforced thermosets with continuous fiber, where dogbone geometry is preferred. One page, one standard. Mixing geometries inside the same batch is the fastest way to get data that won't pass an audit. For a deeper walkthrough of the dominant method, see our companion guide to [composite material testing methods and standards](https://labscubed.com/post/composite-material-testing). ## How do you prepare a composite specimen for tensile testing? Coupon prep typically takes longer than the test. The goal is a straight, parallel-sided rectangle whose failure happens in the gauge section, not under the grips. For a standard D3039 unidirectional coupon, expect: - **Geometry** — 250 mm long × 15 mm wide × 1.0 mm thick for 0° unidirectional, or 25 mm wide for 90° unidirectional and cross-ply. Tolerances on width and thickness are tight (±1%) because they feed directly into the stress calculation. - **Tabs** — bonded glass-fiber/epoxy tabs at each end to spread the gripping load and prevent crushing. Typical bevel angles are 7° or 90°. The bond line is the silent failure path: a thin layer of film adhesive, cured under pressure, lasts; a bead of fast epoxy slipped on at the bench usually doesn't. - **Cutting** — a diamond-blade wet saw with light feed, then light edge polishing. Heat damage at the cut edge initiates premature failure. - **Conditioning** — equilibrium at 23 °C, 50% RH typically, depending on the matrix. - **Measurement** — width and thickness at three locations in the gauge section, with a calibrated digital caliper or micrometer. The recorded average drives modulus and strength calculations. Two of these steps — tab bonding and gauge-section measurement — are where operator-to-operator variability typically shows up most strongly. A 3% disagreement on thickness between two technicians moves reported strength by the same 3%. Watch out Heat damage at the cut edge initiates premature failure. Use a diamond-blade wet saw with light feed pressure, and polish the edges before bonding tabs — a clean edge typically adds several percent to reported strength. ## What grips, fixtures, and strain measurement should you use? The fixture stack matters as much as the machine itself. - **Grips** — hydraulic wedge grips are the standard for D3039. Pneumatic side-action grips work for thin coupons. Manual screw grips introduce torque and side load that show up in the data. - **Alignment** — composite testing is sensitive to bending. ASTM E1012 alignment checks (percent bending typically below 3–5%) are often required by aerospace customers before a campaign starts. - **Strain measurement** — a clip-on extensometer with at least 25 mm gauge length is the workhorse for modulus. For Poisson's ratio you need biaxial strain — typically two strain gauges or a video extensometer with two-axis tracking. - **Load cell** — sized so the expected break load is between 20% and 80% of the cell's capacity. A 100 kN cell on a 5 kN coupon throws away resolution. Reusing the same grip torque, same alignment check, and same extensometer placement across a batch is the difference between repeatable data and a noisy plot. See our [tensile testing machine guide](https://labscubed.com/post/tensile-testing-machine) for how those choices map to specific frame configurations. ## How do you analyze and interpret composite tensile data? The raw output is a load-versus-displacement curve. Five numbers come out of it: - **Ultimate tensile strength** — peak load divided by the measured cross-sectional area. - **Tensile modulus** — the slope of the stress-strain curve in the linear region, usually fitted between 0.1% and 0.3% strain or between 25% and 50% of failure load. - **Strain at failure** — the strain reading at peak load, from the extensometer. - **Poisson's ratio** — ratio of transverse to longitudinal strain, requires biaxial strain measurement. - **Failure mode code** — D3039 defines a three-letter code (type, area, location) that captures whether the break was clean, in the tab, or near a grip. Coupons with a “grip” or “tab” location code are flagged for review. The output is a per-coupon table plus a batch summary (mean, standard deviation, coefficient of variation). Most aerospace and automotive specs require five valid coupons per orientation — and “valid” specifically means a gauge-section failure with a recorded failure mode. ## Manual vs. automated tensile testing of composites Automation is not a faster test. The pull rate is set by the standard. Automation removes the manual steps around the test — and that is where operator variability lives. | Step | Manual workflow | Recommended CubeOne / CubeTen | | --- | --- | --- | | Coupon measurement | Technician with calipers, recorded by hand | In-line laser or vision measurement, logged automatically | | Coupon loading | Manual insertion, torque applied by hand | Robotic pick-and-place, fixed grip torque | | Extensometer placement | Clipped on per coupon | Non-contact video extensometer, set once per batch | | Test execution | Operator starts each run | Sequenced from a queue, unattended | | Failure mode coding | Visual inspection, manual entry | Camera image attached to each record | | Throughput per shift | Typically 6–10 coupons | Up to 30+ coupons | | Operator-to-operator variability | Visible in CV between technicians | Same procedure every run | The headline benefit is not speed alone. It is the disappearance of variability that came from who happened to be at the bench that morning. For the data behind that claim, our [manual vs. automated white paper](https://labscubed.com/white-paper-automation-vs-manual-testing) walks through a side-by-side run. ## Common mistakes in composite tensile testing - **Skipping the alignment check.** A frame that drifts out of alignment by 1° quietly biases every modulus value for a year. - **Inconsistent tab bonding.** Hand-mixed adhesive, uneven cure pressure, and reused tab stock typically cause unexplained grip failures. - **Using D638 geometry on continuous-fiber composites.** The dogbone shoulder concentrates stress and gives artificially low strength. - **Logging caliper measurements after the test.** If the coupon failed and you grab the broken halves to measure cross-section, the data is no longer auditable. - **Reporting only the mean.** Composites have non-Gaussian distributions. Median and coefficient of variation matter for spec sign-off. - **Mixing pre- and post-conditioning samples in one batch.** Moisture content moves modulus by several percent in epoxy systems. ## How automation reduces operator-to-operator variability Most composite labs running manual tensile testing typically see a coefficient of variation between 4% and 8% on modulus across operators, even with a written SOP. That spread is not the machine — it is the dozen small choices each technician makes during prep, mounting, and measurement. LabsCubed's [automated tensile testing systems](https://labscubed.com/post/automated-tensile-testing) remove those choices. CubeOne handles single-frame composite workflows; CubeTen runs a multi-frame queue for high-throughput plastics and rubber. Coupons are measured, mounted, tested, and imaged with the same routine on every run. The data lands directly in the lab record with a fracture image attached, so a customer audit traces every reported value back to a measured coupon and a captured failure mode. For labs working under aerospace, automotive, or medical-device specs, that traceability is increasingly non-negotiable. The automated workflow makes it the default, not a habit a technician has to remember. ## Frequently asked questions Which standard should I use for a tensile test of composite materials? Use ASTM D3039 for continuous-fiber polymer matrix composites (carbon, glass, aramid laminates) and ISO 527-4/-5 if the customer requires the ISO equivalent. Use ASTM D638 only for short-fiber or discontinuous reinforcement where D3039 coupon geometry is impractical. For thermoset composites with continuous fiber, ASTM D5083 is often specified. What is the ASTM D3039 specimen size? For 0° unidirectional coupons, ASTM D3039 specifies a 250 mm long, 15 mm wide, 1.0 mm thick rectangular coupon with bonded tabs. For 90° unidirectional and cross-ply laminates, width increases to 25 mm. Thickness and width tolerances are typically ±1% because they feed directly into the stress calculation. Can I tensile-test a composite without bonded tabs? Sometimes, but it depends on the laminate. Thick cross-ply and woven laminates can be tested without tabs if the grip pressure does not crush the coupon. Unidirectional laminates almost always need tabs to prevent grip-line failure. ASTM D3039 allows untabbed coupons only when the documented failure mode is acceptable — meaning the break must happen in the gauge section. How long does a typical composite tensile test take? The test itself runs at a constant displacement rate of 2 mm/min, so most coupons fail in one to three minutes. The full cycle — measurement, loading, alignment, test, unloading, data entry — typically takes 12 to 20 minutes per coupon manually. Automated systems compress that cycle by handling measurement, loading, and data capture in parallel. How many coupons do I need per orientation? Most aerospace and automotive specs require five valid coupons per orientation, and “valid” means the failure happened in the gauge section with a recorded failure mode code. Plan for six to eight coupons per orientation so you have margin for grip failures and outliers. What causes high variability in composite tensile data? The usual culprits are inconsistent tab bonding, frame misalignment, hand-measured cross-sections, and operator-to-operator differences in coupon mounting. Manual workflows typically show 4–8% coefficient of variation on modulus across technicians. Automating the measurement, loading, and imaging steps reduces that spread because the procedure runs the same way every time, regardless of operator. ### Run cleaner composite tensile tests If your lab is hitting throughput limits or seeing operator-to-operator variability you can't explain, the workflow around the test is usually the cause. LabsCubed builds CubeOne and CubeTen to automate composite tensile testing end-to-end. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials testing automation specialists The LabsCubed team builds robotic tensile and shear testing systems for plastics, rubber, and composites labs — CubeOne, CubeTen, CubeFlex, and CubeGo — and writes about specimen prep, ASTM/ISO compliance, and reducing operator-to-operator variability. ## Keep reading [![ASTM D3039: How to Test Composite Tensile Properties](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/astm-d3039-composite-tensile-testing-automation/Thumb--ASTM-3039M-Standard---LabsCubed-Blog.webp?width=800&quality=75) Testing Standards 9 min read ### ASTM D3039: How to Test Composite Tensile Properties ASTM D3039 measures composite tensile properties. See specimen prep, grips, automation, and how Cube cuts variability. Get a demo from LabsCubed today.](https://labscubed.com/post/astm-d3039-composite-tensile-testing-automation)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ### Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation)[![Polymer mechanical testing methods and standards](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-mechanical-testing-methods-standards-automation/thumb-polymer-mechanical-testing.webp?width=800&quality=75) Testing Standards Lab Automation 9 min read ### Polymer Mechanical Testing: Methods, Standards & Automation Learn polymer mechanical testing methods, ASTM standards, and how automated systems like LabsCubed's Cube reduce variability in plastics and rubber QA labs.](https://labscubed.com/post/polymer-mechanical-testing-methods-standards-automation) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Tensile Testing Machine Guide for Plastics & Rubber Labs" description: "Learn how to choose the right tensile testing machine for plastics and rubber, and how automation improves throughput and repeatability." url: https://labscubed.com/post/tensile-testing-machine --- ![Tensile Testing Machine Guide for Plastics & Rubber Labs](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-testing-machine/Cover---Tensile-Testing-Machine-Guide---LABSCUBED2.webp?width=1280&quality=75) # Tensile Testing Machine Guide for Plastics & Rubber Labs [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Tensile Testing Machine Guide for Plastics & Rubber Labs [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) June 16, 2026 6 min A tensile testing machine applies a controlled pulling force to a specimen and records force and elongation to produce a stress-strain curve — the source of tensile strength, yield strength, elongation at break, and elastic modulus. **In high-volume plastics and rubber labs, the machine is rarely the bottleneck**; specimen loading, grip changes, and manual data entry between tests are. LabsCubed's CubeOne and CubeTen automate that workflow end-to-end to improve repeatability and reduce operator variability. On this page 1. What does a tensile testing machine do? 2. What specifications matter most? 3. Plastics and rubber require different testing conditions 4. When does manual testing become the bottleneck? 5. How does automation improve tensile testing? 6. Best practices when selecting a tensile testing machine 7. Frequently asked questions 8. Conclusion ## What does a tensile testing machine do? A tensile testing machine applies a controlled pulling force to a specimen and records force and elongation throughout the test. The resulting stress-strain curve reveals the key mechanical properties used in quality control and product development. For a primer on the underlying measurement, see our overview of [why tensile testing matters](https://labscubed.com/post/what-is-tensile-testing-and-why-it-matters). ![A tensile testing machine applying a controlled pulling force to a specimen](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-testing-machine/tensile-testing-machine-controlled-pulling-force.webp?width=1200&quality=75) Typical measurements include: - Ultimate tensile strength (UTS) - Yield strength - Elongation at break - Young's modulus These properties are reported across plastics, rubber, composites, and other engineered materials, and they directly affect batch-release and product-development decisions. ## What specifications matter most? Load capacity, crosshead speed, grip selection, and software capability have the greatest impact on testing accuracy and flexibility. The four specifications below are where most selection decisions are won or lost. #### Load cell capacity Choose a load cell with headroom above the maximum expected force. Overloading reduces accuracy and increases measurement uncertainty. #### Crosshead speed range Rigid plastics under ASTM D638 and ISO 527 use lower speeds; elastomers under ASTM D412 need higher extension rates. Consistent speed control keeps results repeatable. #### Grip type Wedge grips suit rigid plastics, pneumatic grips give consistent clamping on rubber, and flat-faced grips hold thin films. The wrong grip causes slippage or premature failures. #### Software and data Modern systems should support automatic data capture, real-time reporting, LIMS and QMS integration, and audit-ready records. Manual entry invites transcription errors. ## Plastics and rubber require different testing conditions Different materials require different standards, speeds, and gripping methods. Labs that test multiple material families should confirm their systems can support each protocol without excessive fixture changes. Tensile testing conditions by material family | Material | Standard | Typical speed | Grip type | | --- | --- | --- | --- | | Rigid plastics | ASTM D638 / ISO 527 | 1–50 mm/min | Wedge grips | | Rubber & elastomers | ASTM D412 / ISO 37 | 200–500 mm/min | Pneumatic grips | | Flexible films | ASTM D882 | 25–500 mm/min | Flat-faced grips | | Composites | ASTM D3039 | 1–5 mm/min | Hydraulic or wedge grips | ## When does manual testing become the bottleneck? In many labs the biggest constraint is not the machine itself, but the manual work between tests. As throughput rises, small delays accumulate and reduce machine utilization. Common bottlenecks include: - Loading specimens one at a time - Adjusting grips for different geometries - Recording results manually - Switching fixtures between standards - Repeating tests caused by grip misalignment ![Diagram of manual tensile testing bottlenecks in the lab workflow](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-testing-machine/manual-tensile-testing-bottlenecks.webp?width=1200&quality=75) ## How does automation improve tensile testing? Automation improves throughput and repeatability by removing manual steps from the testing workflow. Rather than simply increasing speed, it reduces operator variability and improves process consistency from specimen loading to audit-ready data. | | Manual workflow | Recommended CubeOne / CubeTen | | --- | --- | --- | | Specimen loading | Manual specimen loading, one at a time | Robotic specimen handling from a tray | | Alignment | Visual alignment, operator-dependent | Consistent positioning to a mechanical reference | | Reporting | Spreadsheet reporting and re-keying | Automated data capture into LIMS | | Repeatability | Operator-dependent processes | Improved, specimen-driven repeatability | | Utilization | Limited utilization between tests | Continuous, unattended operation | LabsCubed's CubeOne and CubeTen systems combine robotic specimen handling, AI-powered vision, and automated reporting into end-to-end workflows. Instead of generating raw stress-strain data alone, they interpret results in real time, flag anomalies, and stream audit-ready records into the customer's LIMS. For QA and R&D teams, that means fewer bottlenecks, reduced operator variability, and a shift toward predictive material insight rather than reactive testing. See the system in action: [Revolutionize plastics tensile testing with the CubeTen](https://www.youtube.com/watch?v=dQooWFtCbBs&t=92s). ## Best practices when selecting a tensile testing machine To support long-term flexibility, work through this short checklist before committing to a frame. - Match load cell capacity to expected loads, with headroom - Select grips appropriate for the material and specimen - Verify compatibility with the relevant **ASTM** and ISO standards - Prioritize data traceability and software integration - Consider automation as throughput requirements increase ## Frequently asked questions What is a tensile testing machine? A tensile testing machine applies controlled tensile loads to a specimen and measures properties such as tensile strength, elongation at break, and elastic modulus. It records force and elongation throughout the pull to build a stress-strain curve used in quality control and product development. What is the difference between a universal testing machine and a tensile tester? A universal testing machine (UTM) can perform both tensile and compression testing using different fixtures, while a tensile tester is optimized primarily for pull-to-failure applications. Most plastics and rubber labs use a UTM configured for tension because it covers more methods on one frame. How does automation improve tensile testing throughput? Automation reduces manual specimen handling, data entry, and setup time, improving repeatability and enabling higher throughput. Robotic loading, consistent grip torque, and automated data capture remove the operator-dependent steps that limit machine utilization between tests. ## Conclusion Choosing the right tensile testing machine involves more than selecting a load frame. Load cell capacity, crosshead speed, grip type, and data management all affect testing accuracy and workflow efficiency. As sample volumes grow, manual processes often become the limiting factor. By combining robotics, AI-powered vision, and automated data capture, LabsCubed's CubeOne and CubeTen systems help plastics and rubber laboratories scale throughput while improving repeatability and data integrity. ### Improve throughput and reduce operator variability Explore how LabsCubed's CubeOne and CubeTen systems automate specimen handling, testing, and reporting for modern plastics and rubber laboratories. Bring your standards, materials, and throughput numbers, and we'll map the fit. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials Testing Automation Specialists, LabsCubed The LabsCubed Team builds robotic, AI-driven systems for plastics, rubber, and composites QA labs. CubeOne and CubeTen are deployed in production labs across North America and Europe. ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ### Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Universal Testing Machine for Rubber: 2026 Buyer Guide" description: "Choose a universal testing machine for rubber: grips, force ranges, and automated workflows that cut variability. See how LabsCubed automates rubber QA." url: https://labscubed.com/post/universal-testing-machine-for-rubber-buyers-guide --- ![Universal testing machine for rubber - LabsCubed benchtop tester beside a hand loading a specimen tray into the machine](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-for-rubber-buyers-guide/6a6c6280bd5ce09a96bd88da_Cover-20--20Universal-20Testing-20Machine-20for-20Rubber-20LabsCubed-20Blog.webp?width=1280&quality=75) # Universal Testing Machine for Rubber: 2026 Buyer Guide [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Universal Testing Machine for Rubber: 2026 Buyer Guide [Lab Automation](https://labscubed.com/blog/category/lab-automation) August 13, 2026 9 min A universal testing machine for rubber is a force-and-displacement frame configured for elastomers — soft grips, low-force load cells, and long-travel extensometry that handle elongation up to 800%. **The right rubber UTM removes grip slip, matches your standards (ASTM D412, ISO 37, ASTM D624), and — when automated by LabsCubed's CubeOne — cuts the operator-to-operator variability that quietly distorts QA data.** In this guide you'll learn how a rubber UTM differs from a generic tensile frame, which features actually matter for elastomer testing, where manual operators introduce variability, and how an automated rubber testing workflow changes the math on lab throughput. ### Key takeaways - Rubber needs a UTM sized for low forces (typically 0.1–5 kN), with pneumatic or roller grips and a non-contact extensometer that follows 500%+ elongation. - Operator-to-operator variability on ASTM D412 tensile strength can easily reach 10–15% on a manual UTM — and is the biggest target an automated cell addresses. - LabsCubed's CubeOne and CubeTen automate specimen loading, grip pressure, and data capture so Tuesday's results match Thursday's. On this page 1. What is a universal testing machine for rubber? 2. Why is rubber harder to test than metals or plastics? 3. What rubber tests does a UTM perform? 4. How accurate are universal testing machines for rubber? 5. Manual UTM vs. automated UTM for rubber: which fits your lab? 6. Common mistakes when buying a rubber UTM 7. What does an automated rubber testing workflow look like? 8. FAQ ## What is a universal testing machine for rubber? A universal testing machine (UTM) for rubber is a single load frame that performs tensile, compression, tear, and flexure tests on elastomers and rubber compounds. It pairs a precision load cell, motorized crosshead, specimen grips, and an extensometer with software that captures force-vs-displacement data against a chosen standard. For rubber labs, the UTM is the workhorse for batch release, formulation R&D, and customer-spec verification. A rubber-specific UTM differs from a generic frame in three places: **grips** (pneumatic or roller grips to prevent slip on slick, oily, or low-friction compounds), **load cell sizing** (typically 0.1 kN–5 kN, because rubber dumbbells break at far lower loads than metal or rigid plastic), and **extensometer travel** (rubber routinely elongates 300–800%, so contact clip-on devices fall off and non-contact video extensometers become the practical default). ## Why is rubber harder to test than metals or plastics? Rubber is harder to test because it elongates farther, slips in grips, and responds non-linearly to strain rate and temperature — so small operator differences create large data differences. Two technicians running the same ASTM D412 specimen with hand-tightened grips can easily report tensile strengths that disagree by 10–15%, depending on grip pressure, alignment, and how they timed the strain rate. The dominant failure modes when buying the wrong UTM for rubber are: - **Grip slip** — rubber pulls out of standard wedge grips before it breaks, especially on EPDM, silicone, and oil-bloomed compounds. - **Load-cell mismatch** — a 50 kN frame sized for steel resolves a 200 N rubber break poorly; an accuracy claim of ±0.5% of full scale becomes ±0.5% of 50 kN, which is meaningless at low loads. - **Extensometer dropout** — rubber dumbbells stretch out of a clip-on extensometer's range; modulus values are wrong by the time the report prints. - **Temperature drift** — rubber properties shift visibly between 20°C and 25°C, so labs without conditioned specimens get period-over-period drift that looks like a real material change. Industry guides typically frame UTMs as general-purpose tools. They rarely call out the specific reasons rubber labs see operator-to-operator variability — which is the single biggest improvement target an automated rubber UTM addresses. See our deep dive on [fatigue testing in rubber compounds](https://labscubed.com/post/fatigue-testing-in-rubber-compounds-understanding-long-term-performance) for the long-term performance side of the same problem. ## What rubber tests does a UTM perform? A rubber UTM runs the four test families that cover most QA and R&D needs: tensile, tear, compression set, and bond/adhesion. Each maps to a published standard your customers and auditors expect. - **Tensile strength & elongation at break** — ASTM D412 (dumbbell or ring), ISO 37. The default rubber release test. Drives the dumbbell-grip-extensometer triad. - **Tear strength** — ASTM D624 (Die B, Die C, trouser tear). Lower load, fast travel; needs precise crosshead control. - **Compression set / compression stress-strain** — ASTM D575, ASTM D395 (recovery is measured off-frame after a fixture cycle). - **Adhesion to substrate** — ASTM D429 for rubber-to-metal; peel tests for bonded layers. Hardness (ASTM D2240, Shore A/D) is typically measured on a separate durometer, not on the UTM. If a vendor pitches "one machine for everything including hardness," confirm the durometer is a discrete instrument, not a bolted-on probe with reduced precision. For the broader picture across materials, see our [tensile testing machine buyer's guide](https://labscubed.com/post/tensile-testing-machine). ## How accurate are universal testing machines for rubber? Universal testing machines typically achieve a force measurement accuracy of ±0.5% to ±1% of the indicated reading when the load cell is sized correctly and calibrated to ISO 7500-1 or ASTM E4. For rubber, the limiting factor is rarely the load cell — it's the extensometer and the grip, which together govern whether your stress-strain curve is real or noisy. A correctly specified rubber UTM with a video extensometer and pneumatic grips can typically reproduce ASTM D412 tensile strength to within 2–3% run-to-run, depending on specimen prep and conditioning. ## Manual UTM vs. automated UTM for rubber: which fits your lab? Below is the side-by-side comparison labs ask for when they're upgrading. The numbers are typical, not guaranteed — your throughput depends on specimen prep, standard, and report complexity. | | Manual rubber UTM | Recommended CubeOne / CubeTen | | --- | --- | --- | | Specimens per shift | 40–60 (operator-paced) | Up to 200+ unattended | | Grip insertion & alignment | By hand; variable pressure | Robotic load, centered grip | | Operator-to-operator variability | 5–15% on tensile strength typical | Reduced — robot is the operator | | Data capture | Manual CSV, sometimes paper | Direct-to-LIMS audit trail | | Unattended operation | | | | Specimen ID & traceability | Hand-entered | Barcode / vision-tracked | The honest read: a manual UTM is fine if you run a few specimens a day and the operator who runs them never leaves. The moment you have two shifts, three operators, or a customer that audits your data, manual rubber testing starts costing more than it saves. That's the systems-level case for [automated tensile testing](https://labscubed.com/post/automated-tensile-testing) — and why LabsCubed designs robotic frames around rubber's specific failure modes, not generic UTMs. ## Common mistakes when buying a rubber UTM - **Right-size the load cell.** Match typical break load with a 2–5× margin, not 100×. A 50 kN frame buries real rubber data in noise. - **Itemize the extensometer.** If a quote doesn't call it out, you're getting crosshead displacement — which over-reports elongation because of grip and frame compliance. - **Specify rubber-rated grips.** Wedge grips were designed for metal. Pneumatic or roller grips with rubber-rated jaw faces should be Day 1, not Year 2. - **Trust the system, not the spec sheet.** A ±0.5% load cell doesn't matter if specimen prep, conditioning, and operator technique add ±10% on top. - **Have an automation roadmap.** Buying manual today with no plan for sample handling means a repurchase in 18 months when QA volume doubles. ## What does an automated rubber testing workflow look like? An automated rubber UTM — like LabsCubed's **CubeOne** for single-frame labs or **CubeTen** for high-throughput multi-frame cells — closes the loop from specimen tray to LIMS record. A typical flow: dumbbells are loaded onto a tray, the robot picks each specimen, places it in pneumatic grips with consistent jaw pressure, the test runs against the chosen standard (D412, ISO 37, D624), a video extensometer captures elongation through break, and the result lands in your LIMS with the specimen ID, batch number, and full force-displacement curve attached. The visible win is throughput. The bigger structural win is that the robot is the operator — so your Tuesday data looks like your Thursday data, even when your senior tech is on PTO. See LabsCubed's [ASTM D412 / ISO 37 rubber tensile workflow](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) for the standard-by-standard operating model, and our [robotic material testing overview](https://labscubed.com/post/robotic-material-testing) for how the same architecture extends to plastics and composites. ## FAQ What is a UTM machine used for in a rubber lab? A UTM in a rubber lab measures tensile strength, elongation at break, tear resistance, and compression behavior of elastomers against standards like ASTM D412, ISO 37, and ASTM D624. It is the primary instrument behind batch release, customer-spec verification, and R&D formulation work, and it captures force-vs-displacement data that feeds quality records and LIMS. How accurate are universal testing machines? Universal testing machines typically report force accuracy of up to ±0.5% to ±1% of the indicated load when calibrated to ISO 7500-1 or ASTM E4. Real-world test variability is usually larger because of specimen prep, conditioning, grip slip, and extensometer choice — so a system-level view matters more than the load-cell spec alone. What is the method of rubber testing on a UTM? The standard rubber tensile method follows ASTM D412 or ISO 37: a die-cut dumbbell is conditioned, mounted in pneumatic grips with consistent jaw pressure, pulled at a defined crosshead speed (typically 500 mm/min for Type C), and tracked by an extensometer until break. The frame records peak load and elongation, and software computes tensile strength, modulus, and elongation at break. What is a typical universal testing machine made of? A typical UTM consists of a load frame, a calibrated load cell, a motorized crosshead with a precision drive (ball-screw or servo), specimen grips, an extensometer, and control software. For rubber, the configuration shifts toward lower-force load cells, pneumatic or roller grips, and a non-contact video extensometer that can follow elongations of 500% or more. Can a universal testing machine for rubber be automated? Yes. An automated rubber UTM uses a robotic specimen handler to load dumbbells, set grip pressure consistently, run the test, and log results directly to LIMS — removing operator-to-operator variability. LabsCubed's CubeOne and CubeTen are built around this workflow and can run unattended overnight, which typically lifts daily throughput from 40–60 specimens to 200+ depending on standard and report complexity. How much does a universal testing machine for rubber cost? A manual rubber UTM is typically in the US$15,000–US$60,000 range depending on load cell, grips, and extensometer. An automated cell with robotic handling and LIMS integration scales above that and is usually justified by throughput, traceability, and reduced rework — not by replacing the frame itself. ### Ready to compare manual and automated rubber testing for your lab? If your rubber QA is hitting operator variability, audit pressure, or a capacity ceiling, the next step isn't a bigger manual frame — it's an automated workflow. See our [rubber testing solution](https://labscubed.com/rubber-testing) built on the CubeOne platform. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials Testing Automation Specialists The LabsCubed team builds robotic, automated testing systems for plastics, rubber, and composite labs. Our engineers work directly with QA managers, lab directors, and ASTM committee members on real production workflows. ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ### Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | Universal Testing Machine: Complete Guide to Specifications, Applications & Automation" description: "Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows." url: https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber --- ![Universal testing machine pulling a white plastic dumbbell specimen in wedge grips during a tensile test](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-main.webp?width=1280&quality=75) # Universal Testing Machine: Complete Guide to Specifications, Applications & Automation [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) Universal Testing Machine: Complete Guide to Specifications, Applications & Automation [Tensile Testing](https://labscubed.com/blog/category/tensile-testing) [Lab Automation](https://labscubed.com/blog/category/lab-automation) August 13, 2026 9 min **A universal testing machine (UTM) is one of the most versatile instruments in a materials testing laboratory.** It applies controlled tensile, compressive, flexural, shear, peel, and tear forces to determine how materials behave under mechanical loading. From plastics and rubber to composites and metals, UTMs help manufacturers verify product quality, qualify new materials, and comply with ASTM and ISO testing standards. Today’s laboratories expect more than accurate force measurements. As testing volumes increase, consistency, traceability, and workflow efficiency become equally important. Modern systems combine precision load frames with robotics, AI-powered vision, and automated data management to reduce operator variability while supporting audit-ready quality assurance. This guide explains how universal testing machines work, the specifications that matter most, common purchasing mistakes, and why many plastics and rubber laboratories are moving toward automated testing workflows. ### Key takeaways - “Universal” means one load frame runs tension, compression, flexural, shear, peel, and tear tests by swapping fixtures — not a different machine for each method. - Fixture and extensometer selection often influences test quality more than the load frame itself. Size the load cell to your smallest expected force, not your largest. - Automation does not change ASTM or ISO methods. It standardizes specimen handling, alignment, and reporting so the same method is executed consistently. On this page 1. What is a universal testing machine? 2. Universal testing machine vs. tensile testing machine 3. How does a universal testing machine work? 4. What tests can a universal testing machine perform? 5. Key specifications to evaluate before buying 6. Manual vs. automated universal testing machines 7. Why more laboratories are automating materials testing 8. Common mistakes when choosing a UTM 9. Frequently asked questions 10. Why LabsCubed’s automated testing systems stand out ## What is a universal testing machine? **A universal testing machine (UTM) is a mechanical testing system that measures how materials respond to controlled forces such as tension, compression, bending, shear, peel, and tear.** The term _universal_ refers to the machine’s ability to perform multiple types of mechanical tests using interchangeable fixtures on the same load frame. Rather than purchasing separate machines for each application, laboratories can configure one UTM for different testing methods by changing grips, fixtures, and software settings. Universal testing machines are widely used in: - Plastics testing - Rubber and elastomer testing - Composite materials testing - Metals testing - Medical device validation - Research and development - Production quality assurance Depending on the selected test method, a UTM measures properties such as: - Ultimate tensile strength (UTS) - Yield strength - Young’s modulus - Elongation at break - Flexural strength - Compressive strength - Tear resistance - Adhesion strength These measurements help engineers verify material performance before products move into production or reach customers. ## Universal testing machine vs. tensile testing machine Although the terms are often used interchangeably, they are not exactly the same. A [tensile testing machine](https://labscubed.com/post/tensile-testing-machine) is configured specifically for tensile testing, while a universal testing machine supports multiple mechanical tests using interchangeable fixtures. | Universal testing machine | Tensile testing machine | | --- | --- | | Performs tensile, compression, flexural, shear, peel, and tear tests | Primarily configured for tensile testing | | Uses interchangeable fixtures | Usually dedicated to tensile applications | | Greater flexibility for multiple materials | Optimized for pull testing workflows | In plastics and rubber laboratories, tensile testing is the most common application, which is why the two terms are frequently used interchangeably. ## How does a universal testing machine work? **A universal testing machine applies a controlled load to a specimen while continuously measuring force and deformation.** The resulting force-displacement or stress-strain curve provides the mechanical properties required for quality assurance, product development, and material qualification. ![Universal testing machine diagram labelling load frame, crosshead, load cell, grips and extensometer](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/universal-testing-machine-01.webp?width=1200&quality=75) A typical UTM consists of five main components. ### 1\. Load frame The load frame provides the structural rigidity needed to apply precise mechanical loads while minimizing machine compliance. ### 2\. Crosshead The crosshead moves at a controlled speed to apply tensile or compressive force according to the selected ASTM or ISO testing method. Crosshead speed is particularly important for polymers and elastomers, where mechanical properties are sensitive to strain rate. ### 3\. Load cell The load cell measures the applied force throughout the test. Selecting the appropriate load cell capacity improves measurement resolution and ensures accurate force readings across the expected testing range. ### 4\. Grips and fixtures Different testing methods require different fixtures. Examples include pneumatic grips, wedge-action grips, compression platens, flexural fixtures, tear fixtures, and peel fixtures. The fixture selection often has a greater influence on test quality than the load frame itself. ### 5\. Extensometer The extensometer measures specimen deformation during the test. Depending on the application, laboratories may use contact extensometers, video extensometers, or automated extensometry. For plastics and rubber testing, non-contact video extensometers are increasingly preferred because they eliminate contact with the specimen while accurately tracking strain throughout the test. ## What tests can a universal testing machine perform? A properly configured universal testing machine supports a wide range of standardized mechanical tests. ### 1\. Tensile testing Tensile testing measures a material’s response to a pulling force. Common standards include ASTM D638, ISO 527, ASTM D412, ISO 37, and ASTM D3039. Typical properties measured are ultimate tensile strength, yield strength, Young’s modulus, and elongation at break. ![Universal testing machine tensile test with a dark composite coupon clamped between wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/universal-testing-machine-02.webp?width=1200&quality=75) ### 2\. Compression testing Compression testing evaluates how materials behave under compressive loading. Common standards include ASTM D695 and ASTM D575. Typical outputs include compressive strength and compressive modulus. ![Universal testing machine compression test with a composite cylinder between polished steel platens](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/universal-testing-machine-03.webp?width=1200&quality=75) ### 3\. Flexural testing Flexural testing measures bending performance. Common standards include ASTM D790, ISO 178, and ASTM D7264. These methods evaluate flexural strength and flexural modulus for plastics and composite materials. ![Universal testing machine three-point bend fixture flexing a white plastic bar over a span scale](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/universal-testing-machine-04.webp?width=1200&quality=75) ### 4\. Shear testing Shear tests evaluate how materials resist forces acting parallel to their internal structure. Examples include ASTM D3518 and ASTM D732. These tests are commonly used for composite laminates and engineering plastics. ### 5\. Peel and tear testing Additional fixtures allow UTMs to evaluate rubber tear resistance (ASTM D624), adhesive peel strength (ASTM D903), and bonded material performance. Because the load frame is highly configurable, one UTM can support multiple test methods simply by changing fixtures and software parameters. ## Key specifications to evaluate before buying Choosing a universal testing machine involves more than selecting a force capacity. The right system should match your testing standards, specimen types, laboratory workflow, and future testing requirements. For plastics, rubber, and composite laboratories, these specifications have the greatest impact on long-term testing performance. ### 1\. Load cell capacity **The load cell determines how accurately the UTM measures force throughout the test.** Rather than choosing the largest available capacity, select a load cell that closely matches the expected force range of your specimens. Proper sizing improves measurement resolution while maintaining accuracy across the operating range. | Material | Typical load cell range | | --- | --- | | Plastic films | 100 N – 1 kN | | Rubber & elastomers | 500 N – 5 kN | | Rigid plastics | 5 – 50 kN | | Composite laminates | 10 – 100 kN (application dependent) | Many laboratories use interchangeable load cells so one testing system can support multiple materials without compromising accuracy. ### 2\. Crosshead speed Crosshead speed controls how quickly force is applied to the specimen. For polymer materials, strain rate directly influences measured mechanical properties, making precise speed control essential for repeatable results. Different standards specify different testing speeds: - **ASTM D638** and **ISO 527** use multiple crosshead speeds depending on specimen type and material. - **ASTM D412** commonly requires higher testing speeds for elastomers. - **ASTM D3039** specifies loading rates suitable for composite laminates. A quality UTM should maintain consistent crosshead speed throughout the entire test — not only under no-load conditions. ### 3\. Grips and fixtures The testing frame is only one part of the system. Selecting the correct grips and fixtures is equally important. | Application | Typical fixture | | --- | --- | | Plastics tensile testing | Wedge-action or pneumatic grips | | Rubber tensile testing | Pneumatic or roller grips | | Composite tensile testing | Hydraulic wedge grips | | Compression testing | Compression platens | | Flexural testing | Three-point and four-point bend fixtures | | Peel and tear testing | Specialized peel and tear fixtures | Using fixtures designed for the material being tested improves specimen alignment, minimizes slippage, and helps generate more repeatable results. ### 4\. Extensometer selection An extensometer measures specimen deformation during the test. Depending on the application, laboratories may choose contact extensometers, video extensometers, or automated extensometry. For highly elastic materials such as rubber, non-contact video extensometers are often preferred because they accurately track large elongations without contacting the specimen. For rigid plastics and composites, either contact or non-contact systems may be appropriate depending on the testing method and required accuracy. ### 5\. Software and data management Modern testing software should do more than control the machine. Look for systems that support: - ASTM and ISO test templates - Real-time stress-strain analysis - Automatic report generation - CSV and PDF export - LIMS integration - Digital audit trails - Specimen ID tracking Digital data management reduces manual transcription while improving traceability across the testing workflow. ## Manual vs. automated universal testing machines For many laboratories, the greatest opportunity to improve efficiency lies not in replacing the testing frame, but in standardizing the workflow around it. A manual UTM relies on operators to perform repetitive tasks before and after every test. [Automation](https://labscubed.com/post/automated-tensile-testing) standardizes these processes, improving consistency while reducing manual effort. | Workflow stage | Manual UTM | Recommended Automated UTM (CubeOne / CubeTen) | | --- | --- | --- | | Specimen loading | Manual | Robotic specimen handling | | Specimen positioning | Operator alignment | AI-powered specimen validation | | Grip seating | Manual adjustment | Automated grip seating verification | | Test execution | Operator initiated | Automated test execution | | Data collection | Manual export | Automatic digital reporting | | Traceability | Manual record keeping | Integrated specimen tracking and audit trail | Automation does not change ASTM or ISO testing methods. Instead, it helps laboratories execute those methods consistently by reducing operator-dependent variability throughout the testing workflow. ## Why more laboratories are automating materials testing As testing demand increases, laboratories often reach a point where the testing machine is no longer the bottleneck. Instead, delays occur during: - Specimen loading - Fixture setup - Grip alignment - Data entry - Report preparation - Specimen identification These repetitive tasks consume valuable technician time and can introduce variability between operators. LabsCubed approaches automation by connecting the entire testing workflow rather than automating only the tensile test. Within the LabsCubed ecosystem, **CubeOne** and **CubeTen** integrate robotic specimen handling, AI-powered vision, automated extensometry, grip seating verification, digital reporting, LIMS integration, and audit-ready data traceability. Rather than replacing engineers, automation allows them to focus on interpreting results, validating materials, and supporting production quality. ## Common mistakes when choosing a UTM Selecting the right UTM requires evaluating the complete testing workflow rather than comparing specifications alone. Common mistakes include: ### 1\. Choosing an oversized load cell Using a load cell with significantly higher capacity than required may reduce measurement resolution for low-force applications. ### 2\. Selecting the wrong grips Different materials require different gripping systems. Using wedge grips for elastomers or inappropriate fixtures for [composite laminates](https://labscubed.com/post/composite-material-testing) can lead to specimen slippage or premature failure. ### 3\. Overlooking extensometry Crosshead displacement does not always represent specimen deformation accurately. Selecting the appropriate extensometer improves modulus calculations and strain measurements. ### 4\. Ignoring future testing needs A system that only supports today’s workload may require replacement as production grows. When evaluating equipment, consider additional testing standards, new material types, future automation, software scalability, and laboratory expansion. Planning ahead helps maximize the long-term value of the investment. ## Frequently asked questions What is the difference between a universal testing machine and a tensile testing machine? A universal testing machine (UTM) is designed to perform multiple mechanical tests — including tensile, compression, flexural, shear, peel, and tear testing — using interchangeable fixtures. A tensile testing machine is typically configured specifically for tensile tests. In plastics and rubber laboratories, the two terms are often used interchangeably because tensile testing is the primary application. However, a UTM provides greater flexibility as testing requirements evolve. What materials can a universal testing machine test? With the appropriate fixtures and testing methods, a universal testing machine can evaluate plastics, rubber and elastomers, composite materials, metals, adhesives, films, packaging materials, and medical device components. The same testing frame can support different applications simply by changing grips, fixtures, load cells, and software configurations. Which ASTM and ISO standards can a UTM perform? A universal testing machine supports numerous international testing standards. For plastics these include ASTM D638, ISO 527, ASTM D790, ISO 178, and ASTM D695. For rubber they include ASTM D412, ISO 37, ASTM D624, and ASTM D575. For composites they include ASTM D3039, ASTM D7264, and ASTM D3518. The specific standards a UTM can perform depend on the fixtures, load cell, extensometer, and software installed. How often should a universal testing machine be calibrated? Calibration frequency depends on laboratory requirements and applicable quality standards. Many quality assurance laboratories perform annual calibration of the load cell and extensometer, while regulated laboratories may follow additional customer or accreditation requirements. Routine preventive maintenance and calibration help ensure consistent, traceable test results throughout the life of the equipment. Can a universal testing machine be automated? Yes. Modern automation extends beyond the testing frame itself by standardizing specimen handling, positioning, grip seating, strain measurement, data collection, and reporting. Rather than changing the ASTM or ISO testing procedure, automation helps laboratories execute the same workflow consistently while improving repeatability and traceability. ## Why LabsCubed’s automated testing systems stand out A universal testing machine is the foundation of mechanical testing for plastics, rubber, composites, and many other engineering materials. Whether performing tensile, compression, flexural, or tear testing, the quality of the results depends not only on the testing frame but also on specimen preparation, fixture selection, strain measurement, and data management. When selecting a UTM, laboratories should evaluate the complete testing workflow — not just machine specifications. For plastics and rubber laboratories, improving the workflow around the testing machine often delivers greater long-term value than upgrading the load frame alone. LabsCubed’s [CubeOne](https://labscubed.com/plastic-testing) and [CubeTen](https://labscubed.com/rubber-testing) are designed to automate the entire tensile testing workflow — from specimen loading to final reporting. By combining robotic specimen handling, AI-powered vision, automated extensometry, grip seating verification, and direct LIMS integration, they help laboratories reduce operator variability while building repeatable, audit-ready testing processes. Whether you’re performing **ASTM D638** testing on plastics or **ASTM D412** testing on rubber, CubeOne and CubeTen integrate seamlessly into the **HERO Lab** ecosystem to support consistent, scalable quality assurance workflows. Join the [CubeGo waitlist](https://labscubed.com/get-a-quote) for our compact platform. ### See your specimens running on our automation. Book a 20-minute walkthrough of CubeOne and CubeTen. Bring your standard, your material, and your typical batch size — we’ll show you the workflow end-to-end. [Get a Quote](https://labscubed.com/get-a-quote) LC Written by LabsCubed Team Materials testing automation specialists The LabsCubed team builds robotic, AI-driven testing systems for plastics, rubber, and composites labs. We write about the workflow side of materials testing — throughput, repeatability, and ASTM/ISO compliance — from the lab floor. ## Keep reading [Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=800&quality=75) Tensile Testing Testing Standards Lab Automation 9 min read ### Polymer Tensile Test: Procedure, Standards & Automation Polymer tensile test guide: ASTM D638, ISO 527, dog-bone specimens, common mistakes, and how automation cuts operator variability. Get the full procedure.](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation)[![Composite Material Testing: Methods, Standards, and Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/composite-material-testing/Composite-Compression-Test---LabsCubed.webp?width=800&quality=75) Tensile Testing Lab Automation 6 min read ### Composite Material Testing: Methods, Standards, and Automation Learn the key composite material testing methods, ASTM standards, and how automation improves throughput, repeatability, and data quality.](https://labscubed.com/post/composite-material-testing) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Blog LabsCubed | What is Tensile Testing & Why it Matters in Materials Labs" description: "This article introduces tensile testing, its applications, common laboratory challenges, and practical solutions for obtaining accurate results." url: https://labscubed.com/post/what-is-tensile-testing-and-why-it-matters --- ![What is Tensile Testing & Why it Matters in Materials Labs](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/what-is-tensile-testing-and-why-it-matters/Screenshot-2025-07-07-at-3.54.04-PM.png?width=1280&quality=75) # What is Tensile Testing & Why it Matters in Materials Labs [Home](https://labscubed.com/) [Blog](https://labscubed.com/blog) What is Tensile Testing & Why it Matters in Materials Labs [Lab Automation](https://labscubed.com/blog/category/lab-automation) July 18, 2025 8 min ## An Introduction to Tensile Testing Have you ever wondered if the material chosen for a project is well-suited for a product's application? Luckily, **material testing** allows for benchmarking a material's performance under certain load conditions. This helps designers choose the proper materials without overdoing it on the performance side, ultimately saving money by selecting the appropriate material. It also allows for quantitatively comparing the physical properties of dissimilar materials. ‍**Tensile testing** is a way to understand a material's mechanical properties. It works by pulling a material until it breaks, showing its **strength (ultimate tensile strength)**, **stretchiness (elongation)**, and **stiffness (modulus of elasticity)**. This test is useful in material science, engineering, and especially for quality control in plastics.  This article introduces tensile testing, its applications, common laboratory challenges, and practical solutions for obtaining accurate results. Fig. 1 illustrates an automated tensile test performed using the CubeOne system. _Figure 1: Automated rubber tensile testing (ASTM D412) using the CubeOne_ ‍ ## **What is Tensile Testing?** **Tensile testing** is a fundamental mechanical test where a material specimen is pulled until it breaks, revealing how it reacts to stretching forces. This process provides crucial data like **stress**, **strain**, and **elongation**, from which key material properties such as **ultimate tensile strength**, **yield strength**, and **modulus of elasticity** are determined. ### **Key Principles and How it Works** Testing relies on standardized methods:
Specimen Preparation:Materials are shaped into precise "dog-bone" or "dumbbell" forms (e.g., following ASTM D638 for plastics or ASTM D412 for rubbers) to support consistent testing procedures. The gauge length is a specific, pre-defined section of the specimen where deformation is measured.
Tensile Testing Machine:A universal testing machine (UTM) uses a load frame, grips to hold the specimen, a load cell to measure force, and an extensometer to measure elongation.
Video ExtensometerThe specimen is clamped, a controlled pulling load is applied at a constant rate, and data is continuously recorded until fracture.
### ‍**Understanding Engineering Stress and Strain** For most practical applications, **engineering stress (σe​)** and **engineering strain (εe​)** are used. They are both calculated based on the original dimensions of the specimen's gauge length: **Engineering Stress:** Applied load divided by original cross-sectional area.  ![(Applied load divided by original cross-sectional area).](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/what-is-tensile-testing-and-why-it-matters/AD_4nXcguUm35VYWGDKZcwTfWOPbRPrxLlKYQci1jCNqxeL5dDKv5jsTOEG5q_RMWkJ6taAGhWv0Ujpu22TVNobqpRT8Mujj3DntnJe-yarckj_THagcsEqfW0xL6BhwRtsKukTgkEm1VQ.png?width=1200&quality=75) ‍**Engineering Strain:** Change in length measured by extensometer divided by original gauge length ![Change in length measured by extensometer divided by original gauge length](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/what-is-tensile-testing-and-why-it-matters/AD_4nXeRxkGm-KcO636VGgtNR6HsjL9-BgiAtUGXzbTpDCIU5EQ7o4HfDDXLYhxws1XGbP4C4Eywpsk8K3hNrT2Y1FeswsJdXtQvsWJvn-pPmPOBlE51bqAMRpYD4iofOU1ME9eE2KtdIA.png?width=1200&quality=75) ### ‍**Key Material Properties Measured** A **stress-strain curve** is plotted from the data, illustrating the material's behavior. On this curve, **strain is plotted on the X-axis** and **stress on the Y-axis**, revealing: - **Ultimate Tensile Strength (UTS):** The maximum stress the material withstands before fracturing. - **Yield Strength:** The stress at which permanent (plastic) deformation begins.  - **Fracture Stress/Strength:** The stress on the material at the exact moment of fracture. - **Elongation at Break:** The percentage increase in length at fracture, indicating **ductility**.  - **Strain at Break:** The strain value on the stress-strain curve at the point of fracture, representing the total deformation undergone before breaking.  - **Young's Modulus (Modulus of Elasticity):** A measure of the material's **stiffness** or resistance to elastic deformation. If using a CubeOne or CurbeTen system, all test results can be reviewed, compared, and exported via the **LabsCubed Portal**, seen in Fig. 2. Figure 2: Labscubed Portal and overview of collected sample data for rubber tensile testing (ASTM D412). ### **Understanding Stress-Strain Curves Across Material Types** The interpretation of stress-strain curves varies depending on the material type and applicable testing standard. For **rigid materials** such as metals or thermoplastics (e.g., tested under [ASTM D638](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing)), the curve is typically divided into two regions: - an **elastic region** (the most linear section at the start of the test), where the material returns to its original shape after the load is removed, and - a **plastic region**, where permanent deformation begins. The **transition point between these regions** is defined as the **yield point** (or **yield stress**), often determined using a 0.2% offset method. This method finds the yield point by drawing a line parallel to the elastic region of the curve, offset by a small strain (commonly 0.2%). The yield point is critical for assessing when a material will begin to deform irreversibly under load. In contrast, **elastomers and rubbers** (e.g., tested under [ASTM D412](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing)) behave quite differently. These materials are highly **hyperelastic** and may stretch several hundred percent without permanent deformation. Their stress-strain curves do **not typically exhibit a distinct plastic region or clear yield point**. Instead, they remain elastic until they break, often **failing directly from the elastic phase**. As a result, standards like [ASTM D412](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) emphasize **tensile stress at specific elongation levels** (e.g., 100%, 200%, 300%) rather than defining yield stress. This approach enables comparison of material stiffness and rigidity under large, reversible deformations. ### **Validating Test Results: The Importance of Gauge Length Failure** For valid results, the specimen **must fracture within its gauge length**. If breakage occurs outside this area (e.g., at the grips), the test is considered **inconclusive** and must be re-performed, as improper gripping or stress concentrations likely influenced the failure. Fig. 3 shows an example of an out-of-gauge failure in a 3D-printed [ASTM D638](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) tensile specimen. _Figure 3: Example of out-of-gauge failure using ASTM D638 tensile sample (3D printed Nylon 6 CF)._ ## **Where is Tensile Testing Used?** Tensile testing is a key tool used across many industries. It helps make sure materials are strong enough and products work as they should. It's essential for: | Category | Description | | --- | --- | | Quality Control (QC) | To confirm materials and products meet required standards or performance expectations. | | Failure Analysis | To investigate why a component or product failed by assessing the mechanical properties of the degraded material. | | Designing Products | To pick the right materials so products can handle what they're built for. | | Developing New Materials (R&D) | To check how new materials perform and compare them to others. | Tensile testing provides key mechanical property data used in industries like automotive, consumer goods, composites, and additive manufacturing for material selection and quality control. | Category | Description | | --- | --- | | Automotive | For materials used in dashboards, bumpers, and interior components, verifying their strength and durability for safety and longevity. | | Consumer Goods | Assessing the materials in everything from toys to appliances and electronics to ensure they are robust, safe, and long-lasting. | | Composite Materials | Assessing the strength of both the base material matrix and the reinforcing fibers in composite structures. | | Additive Manufacturing (3D Printing) | Characterizing the mechanical properties of 3D-printed parts, which can vary significantly from traditionally manufactured counterparts. | Sticking to [ASTM](https://store.astm.org/)/[ISO](https://www.iso.org/standards.html) tensile standards for various materials is crucial. This guarantees reliable, comparable test results, simplifying material selection for different use cases. ## **Lab Challenges in Tensile Testing & Solutions** Tensile testing presents several common challenges in laboratory environments, including specimen variability, equipment accuracy, human error, data interpretation, and the costs associated with tools and high test volumes. Additionally, handling complex materials, like soft rubbers or high-strength plastics, can further complicate the process. These hurdles, outlined in Table 1 below, can significantly impact test consistency and throughput. One powerful way to mitigate these issues is through automation. [**CubeOne (for rubbers and elastomers)**](https://labscubed.com/rubber-testing) **and** [**CubeTen (for plastics)**](https://labscubed.com/plastic-testing) are automated tensile testers developed by LabsCubed (Fig. 4), specifically designed to tackle these challenges head-on and deliver precise, repeatable, and efficient results. ‍ _Figure 4: LabsCubed automated systems._ Here are some common hurdles in tensile testing and how LabsCubed automation systems solve them. | Challenge | Description | How LabsCubed Automated Systems Provide Solutions | | --- | --- | --- | | Specimen Quality | Getting samples with the right dimensions, smooth surfaces, and no flaws is tough. Brittle or very soft materials are especially tricky to prepare correctly. | Automated Measurement: CubeTen and CubeOne automatically measure sample thickness (and width for CubeTen) with calibrated sensors, eliminating manual errors and improving consistency from varying sample prep. | | Machine Uptime & Accuracy | Machines need regular checks and calibration to give correct force and movement readings. Worn parts like grips and extensometers can also throw off results. | Precision Measurement Systems: Both CubeOne and CubeTen use precision crosshead displacement and offer automated physical or video extensometers (for precise, non-contact strain) to ensure accurate, ASTM-calibrated force and deformation readings. | | Human Error | Mistakes in how samples are loaded, gripped, or how data is read can lead to bad results. Everyone needs consistent training and clear steps. | Full Automation: Systems automate specimen alignment, gripping, and measurement. This removes human variability in positioning, gauge length marking, and clamping pressure, ensuring consistent inputs and results across operators and shifts. | | Data Understanding | Interpreting the stress-strain curve, especially finding specific points like yield for some materials, can be complex. Knowing what the data truly means takes skill. | LabsCubed Portal: Offers interactive stress-strain visualization, batch reports, and easy data export (CSV, PDF). It also integrates with other lab systems (LIMS, ERP) for streamlined analysis and easier interpretation of complex material behaviors. | | Equipment & Tool Costs | Buying and maintaining tensile testing machines, plus the ongoing cost of grips and tools for preparing samples, can be expensive. | Maximized ROI & Efficiency: By automating repetitive tasks, CubeOne saves up to 85% of team time. This optimizes technician time for higher-value work, accelerating results and improving return on investment over manual methods. | | High Test Volume | For busy labs, running many tests efficiently and handling all the data quickly can be a big challenge. | Increased Throughput: CubeOne handles up to 12 samples, and CubeTen handles up to 15 samples at a time (Fig. 5). This high capacity, combined with automation, drastically increases testing efficiency and throughput for busy labs. | | Gripping Complex Materials | Holding a wide range of materials and shapes firmly without them slipping or breaking prematurely at the grips requires specialized solutions. | Smart Alignment & Gripping: CubeTen features a smart vision system to detect specimen edges and automatically aligns each sample with precision in the grips, using self-centering mechanisms. This minimizes slippage and premature failure, even with varied material shapes and surface finishes. | ## Conclusion Tensile testing remains a cornerstone of material science, indispensable for ensuring product quality, safety, and innovation, especially with plastics and rubbers. While traditional methods present challenges, modern automation provides clear solutions.  LabsCubed's [CubeOne](https://labscubed.com/rubber-testing) and [CubeTen](https://labscubed.com/plastic-testing) automated tensile testers are designed to tackle these hurdles head-on. By delivering precision, consistency, and efficiency, these systems can help labs overcome common issues and optimize their material testing workflows. Watch the video below to discover how LabsCubed's [CubeTen](https://labscubed.com/plastic-testing) automates plastic testing in labs, saving 90% of time in repetitive lab tasks and providing 40% more data consistency. ## Keep reading [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=800&quality=75) Tensile Testing Lab Automation 9 min read ### Universal Testing Machine: Complete Guide to Specifications, Applications & Automation Learn how a universal testing machine works, what tests it performs, key specifications to evaluate, and how automation improves materials testing workflows.](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber)[Tensile Testing Lab Automation 9 min read ### Tensile Strength Tester: A Buyer's Guide for QA Labs Choose the right tensile strength tester for plastics or rubber QA. Compare manual vs. automated systems, key specs, and ROI. Get a quote from LabsCubed.](https://labscubed.com/post/tensile-strength-tester-buyers-guide)[![Universal testing machine for rubber - LabsCubed benchtop tester and a specimen tray being loaded by hand](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-for-rubber-buyers-guide/6a6c62dd54cb89fa0482971a_Thumbnail--20Universal-20Testing-20Machine-20for-20Rubber-20LabsCubed-20Blog.webp?width=800&quality=75) Lab Automation 9 min read ### Universal Testing Machine for Rubber: 2026 Buyer Guide Choose a universal testing machine for rubber: grips, force ranges, and automated workflows that cut variability. See how LabsCubed automates rubber QA.](https://labscubed.com/post/universal-testing-machine-for-rubber-buyers-guide) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Privacy Policy | LabsCubed" description: "Read LabsCubed's privacy policy regarding data collection, usage, and protection for our website visitors and customers." url: https://labscubed.com/privacy-policy --- Legal # Privacy Policy Last updated March 28, 2021 Jump to a section 1. 1\. WHAT INFORMATION DO WE COLLECT? 2. 2\. HOW DO WE USE YOUR INFORMATION? 3. 3\. WILL YOUR INFORMATION BE SHARED WITH ANYONE? 4. 4\. WHO WILL YOUR INFORMATION BE SHARED WITH? 5. 5\. DO WE USE COOKIES AND OTHER TRACKING TECHNOLOGIES? 6. 6\. HOW LONG DO WE KEEP YOUR INFORMATION? 7. 7\. HOW DO WE KEEP YOUR INFORMATION SAFE? 8. 8\. DO WE COLLECT INFORMATION FROM MINORS? 9. 9\. WHAT ARE YOUR PRIVACY RIGHTS? 10. 10\. CONTROLS FOR DO-NOT-TRACK FEATURES 11. 11\. DO CALIFORNIA RESIDENTS HAVE SPECIFIC PRIVACY RIGHTS? 12. 12\. DO WE MAKE UPDATES TO THIS NOTICE? 13. 13\. HOW CAN YOU CONTACT US ABOUT THIS NOTICE? 14. 14\. HOW CAN YOU REVIEW, UPDATE, OR DELETE THE DATA WE COLLECT FROM YOU? Contents 1. 1\. WHAT INFORMATION DO WE COLLECT? 2. 2\. HOW DO WE USE YOUR INFORMATION? 3. 3\. WILL YOUR INFORMATION BE SHARED WITH ANYONE? 4. 4\. WHO WILL YOUR INFORMATION BE SHARED WITH? 5. 5\. DO WE USE COOKIES AND OTHER TRACKING TECHNOLOGIES? 6. 6\. HOW LONG DO WE KEEP YOUR INFORMATION? 7. 7\. HOW DO WE KEEP YOUR INFORMATION SAFE? 8. 8\. DO WE COLLECT INFORMATION FROM MINORS? 9. 9\. WHAT ARE YOUR PRIVACY RIGHTS? 10. 10\. CONTROLS FOR DO-NOT-TRACK FEATURES 11. 11\. DO CALIFORNIA RESIDENTS HAVE SPECIFIC PRIVACY RIGHTS? 12. 12\. DO WE MAKE UPDATES TO THIS NOTICE? 13. 13\. HOW CAN YOU CONTACT US ABOUT THIS NOTICE? 14. 14\. HOW CAN YOU REVIEW, UPDATE, OR DELETE THE DATA WE COLLECT FROM YOU? Thank you for choosing to be part of our community at LabsCubed Inc. ("**Company**", "**we**", "**us**", "**our**"). We are committed to protecting your personal information and your right to privacy. If you have any questions or concerns about this privacy notice, or our practices with regards to your personal information, please contact us at [info@labscubed.com](mailto:info@labscubed.com). When you visit our website [http://WWW.LABSCUBED.COM](https://labscubed.com/). (the "**Website**"), and more generally, use any of our services (the "**Services**", which include the Website), we appreciate that you are trusting us with your personal information. We take your privacy very seriously. In this privacy notice, we seek to explain to you in the clearest way possible what information we collect, how we use it and what rights you have in relation to it. We hope you take some time to read through it carefully, as it is important. If there are any terms in this privacy notice that you do not agree with, please discontinue use of our Services immediately. This privacy notice applies to all information collected through our Services (which, as described above, includes our Website), as well as, any related services, sales, marketing or events. **Please read this privacy notice carefully as it will help you understand what we do with the information that we collect.** ## 1\. WHAT INFORMATION DO WE COLLECT? ### Personal information you disclose to us In ShortWe collect personal information that you provide to us. We collect personal information that you voluntarily provide to us when you express an interest in obtaining information about us or our products and Services, when you participate in activities on the Website or otherwise when you contact us. The personal information that we collect depends on the context of your interactions with us and the Website, the choices you make and the products and features you use. The personal information we collect may include the following: **Personal Information Provided by You.** We collect names; phone numbers; email addresses; mailing addresses; job titles; and other similar information. All personal information that you provide to us must be true, complete and accurate, and you must notify us of any changes to such personal information. ### Information automatically collected In ShortSome information — such as your Internet Protocol (IP) address and/or browser and device characteristics — is collected automatically when you visit our Website. We automatically collect certain information when you visit, use or navigate the Website. This information does not reveal your specific identity (like your name or contact information) but may include device and usage information, such as your IP address, browser and device characteristics, operating system, language preferences, referring URLs, device name, country, location, information about how and when you use our Website and other technical information. This information is primarily needed to maintain the security and operation of our Website, and for our internal analytics and reporting purposes. Like many businesses, we also collect information through cookies and similar technologies. The information we collect includes: - _Log and Usage Data._ Log and usage data is service-related, diagnostic, usage and performance information our servers automatically collect when you access or use our Website and which we record in log files. Depending on how you interact with us, this log data may include your IP address, device information, browser type and settings and information about your activity in the Website (such as the date/time stamps associated with your usage, pages and files viewed, searches and other actions you take such as which features you use), device event information (such as system activity, error reports (sometimes called 'crash dumps') and hardware settings). - _Device Data._ We collect device data such as information about your computer, phone, tablet or other device you use to access the Website. Depending on the device used, this device data may include information such as your IP address (or proxy server), device and application identification numbers, location, browser type, hardware model Internet service provider and/or mobile carrier, operating system and system configuration information. - _Location Data._ We collect location data such as information about your device's location, which can be either precise or imprecise. How much information we collect depends on the type and settings of the device you use to access the Website. For example, we may use GPS and other technologies to collect geolocation data that tells us your current location (based on your IP address). You can opt out of allowing us to collect this information either by refusing access to the information or by disabling your Location setting on your device. Note however, if you choose to opt out, you may not be able to use certain aspects of the Services. ### Information collected from other sources In ShortWe may collect limited data from public databases, marketing partners, and other outside sources. In order to enhance our ability to provide relevant marketing, offers and services to you and update our records, we may obtain information about you from other sources, such as public databases, joint marketing partners, affiliate programs, data providers, as well as from other third parties. This information includes mailing addresses, job titles, email addresses, phone numbers, intent data (or user behavior data), Internet Protocol (IP) addresses, social media profiles, social media URLs and custom profiles, for purposes of targeted advertising and event promotion. ## 2\. HOW DO WE USE YOUR INFORMATION? In ShortWe process your information for purposes based on legitimate business interests, the fulfillment of our contract with you, compliance with our legal obligations, and/or your consent. We use personal information collected via our Website for a variety of business purposes described below. We process your personal information for these purposes in reliance on our legitimate business interests, in order to enter into or perform a contract with you, with your consent, and/or for compliance with our legal obligations. We indicate the specific processing grounds we rely on next to each purpose listed below. We use the information we collect or receive: - **To send administrative information to you.** We may use your personal information to send you product, service and new feature information and/or information about changes to our terms, conditions, and policies. - **To protect our Services.** We may use your information as part of our efforts to keep our Website safe and secure (for example, for fraud monitoring and prevention). - **To enforce our terms, conditions and policies for business purposes, to comply with legal and regulatory requirements or in connection with our contract.** - **To respond to legal requests and prevent harm.** If we receive a subpoena or other legal request, we may need to inspect the data we hold to determine how to respond. - **Fulfill and manage your orders.** We may use your information to fulfill and manage your orders, payments, returns, and exchanges made through the Website. - **Administer prize draws and competitions.** We may use your information to administer prize draws and competitions when you elect to participate in our competitions. - **To deliver and facilitate delivery of services to the user.** We may use your information to provide you with the requested service. - **To respond to user inquiries/offer support to users.** We may use your information to respond to your inquiries and solve any potential issues you might have with the use of our Services. - **To send you marketing and promotional communications.** We and/or our third-party marketing partners may use the personal information you send to us for our marketing purposes, if this is in accordance with your marketing preferences. For example, when expressing an interest in obtaining information about us or our Website, subscribing to marketing or otherwise contacting us, we will collect personal information from you. You can opt-out of our marketing emails at any time (see the "WHAT ARE YOUR PRIVACY RIGHTS" below). - **Deliver targeted advertising to you.** We may use your information to develop and display personalized content and advertising (and work with third parties who do so) tailored to your interests and/or location and to measure its effectiveness. ## 3\. WILL YOUR INFORMATION BE SHARED WITH ANYONE? In ShortWe only share information with your consent, to comply with laws, to provide you with services, to protect your rights, or to fulfill business obligations. We may process or share your data that we hold based on the following legal basis: - **Consent:** We may process your data if you have given us specific consent to use your personal information for a specific purpose. - **Legitimate Interests:** We may process your data when it is reasonably necessary to achieve our legitimate business interests. - **Performance of a Contract:** Where we have entered into a contract with you, we may process your personal information to fulfill the terms of our contract. - **Legal Obligations:** We may disclose your information where we are legally required to do so in order to comply with applicable law, governmental requests, a judicial proceeding, court order, or legal process, such as in response to a court order or a subpoena (including in response to public authorities to meet national security or law enforcement requirements). - **Vital Interests:** We may disclose your information where we believe it is necessary to investigate, prevent, or take action regarding potential violations of our policies, suspected fraud, situations involving potential threats to the safety of any person and illegal activities, or as evidence in litigation in which we are involved. More specifically, we may need to process your data or share your personal information in the following situations: - **Business Transfers.** We may share or transfer your information in connection with, or during negotiations of, any merger, sale of company assets, financing, or acquisition of all or a portion of our business to another company. - **Vendors, Consultants and Other Third-Party Service Providers.** We may share your data with third-party vendors, service providers, contractors or agents who perform services for us or on our behalf and require access to such information to do that work. Examples include: payment processing, data analysis, email delivery, hosting services, customer service and marketing efforts. We may allow selected third parties to use tracking technology on the Website, which will enable them to collect data on our behalf about how you interact with our Website over time. This information may be used to, among other things, analyze and track data, determine the popularity of certain content, pages or features, and better understand online activity. Unless described in this notice, we do not share, sell, rent or trade any of your information with third parties for their promotional purposes. ## 4\. WHO WILL YOUR INFORMATION BE SHARED WITH? In ShortWe only share information with the following third parties. We only share and disclose your information with the following third parties. We have categorized each party so that you may be easily understand the purpose of our data collection and processing practices. If we have processed your data based on your consent and you wish to revoke your consent, please contact us using the contact details provided in the section below titled "HOW CAN YOU CONTACT US ABOUT THIS NOTICE?". - **Advertising, Direct Marketing, and Lead Generation** Google AdSense - **Content Optimization** YouTube video embed - **Data Backup and Security** Google Drive Backup - **Retargeting Platforms** Google Analytics Remarketing and Google Ads Remarketing - **Web and Mobile Analytics** Google Ads, Google Analytics and Google Tag Manager - **Website Testing** Google Play Console ## 5\. DO WE USE COOKIES AND OTHER TRACKING TECHNOLOGIES? In ShortWe may use cookies and other tracking technologies to collect and store your information. We may use cookies and similar tracking technologies (like web beacons and pixels) to access or store information. Specific information about how we use such technologies and how you can refuse certain cookies is set out in our Cookie Notice. ## 6\. HOW LONG DO WE KEEP YOUR INFORMATION? In ShortWe keep your information for as long as necessary to fulfill the purposes outlined in this privacy notice unless otherwise required by law. We will only keep your personal information for as long as it is necessary for the purposes set out in this privacy notice, unless a longer retention period is required or permitted by law (such as tax, accounting or other legal requirements). No purpose in this notice will require us keeping your personal information for longer than 2 years. When we have no ongoing legitimate business need to process your personal information, we will either delete or anonymize such information, or, if this is not possible (for example, because your personal information has been stored in backup archives), then we will securely store your personal information and isolate it from any further processing until deletion is possible. ## 7\. HOW DO WE KEEP YOUR INFORMATION SAFE? In ShortWe aim to protect your personal information through a system of organizational and technical security measures. We have implemented appropriate technical and organizational security measures designed to protect the security of any personal information we process. However, despite our safeguards and efforts to secure your information, no electronic transmission over the Internet or information storage technology can be guaranteed to be 100% secure, so we cannot promise or guarantee that hackers, cybercriminals, or other unauthorized third parties will not be able to defeat our security, and improperly collect, access, steal, or modify your information. Although we will do our best to protect your personal information, transmission of personal information to and from our Website is at your own risk. You should only access the Website within a secure environment. ## 8\. DO WE COLLECT INFORMATION FROM MINORS? In ShortWe do not knowingly collect data from or market to children under 18 years of age. We do not knowingly solicit data from or market to children under 18 years of age. By using the Website, you represent that you are at least 18 or that you are the parent or guardian of such a minor and consent to such minor dependent’s use of the Website. If we learn that personal information from users less than 18 years of age has been collected, we will deactivate the account and take reasonable measures to promptly delete such data from our records. If you become aware of any data we may have collected from children under age 18, please contact us at khaled@labscubed.com. ## 9\. WHAT ARE YOUR PRIVACY RIGHTS? In ShortYou may review, change, or terminate your account at any time. If you are a resident in the European Economic Area and you believe we are unlawfully processing your personal information, you also have the right to complain to your local data protection supervisory authority. You can find their contact details here: [http://ec.europa.eu/justice/data-protection/bodies/authorities/index\_en.htm](http://ec.europa.eu/justice/data-protection/bodies/authorities/index_en.htm). If you are a resident in Switzerland, the contact details for the data protection authorities are available here: [https://www.edoeb.admin.ch/edoeb/en/home.html](https://www.edoeb.admin.ch/edoeb/en/home.html). **Cookies and similar technologies:** Most Web browsers are set to accept cookies by default. If you prefer, you can usually choose to set your browser to remove cookies and to reject cookies. If you choose to remove cookies or reject cookies, this could affect certain features or services of our Website. To opt-out of interest-based advertising by advertisers on our Website visit [http://www.aboutads.info/choices/](http://www.aboutads.info/choices/). ## 10\. CONTROLS FOR DO-NOT-TRACK FEATURES Most web browsers and some mobile operating systems and mobile applications include a Do-Not-Track ("DNT") feature or setting you can activate to signal your privacy preference not to have data about your online browsing activities monitored and collected. At this stage no uniform technology standard for recognizing and implementing DNT signals has been finalized. As such, we do not currently respond to DNT browser signals or any other mechanism that automatically communicates your choice not to be tracked online. If a standard for online tracking is adopted that we must follow in the future, we will inform you about that practice in a revised version of this privacy notice. ## 11\. DO CALIFORNIA RESIDENTS HAVE SPECIFIC PRIVACY RIGHTS? In ShortYes, if you are a resident of California, you are granted specific rights regarding access to your personal information. California Civil Code Section 1798.83, also known as the "Shine The Light" law, permits our users who are California residents to request and obtain from us, once a year and free of charge, information about categories of personal information (if any) we disclosed to third parties for direct marketing purposes and the names and addresses of all third parties with which we shared personal information in the immediately preceding calendar year. If you are a California resident and would like to make such a request, please submit your request in writing to us using the contact information provided below. If you are under 18 years of age, reside in California, and have a registered account with the Website, you have the right to request removal of unwanted data that you publicly post on the Website. To request removal of such data, please contact us using the contact information provided below, and include the email address associated with your account and a statement that you reside in California. We will make sure the data is not publicly displayed on the Website, but please be aware that the data may not be completely or comprehensively removed from all our systems (e.g. backups, etc.). ### CCPA Privacy Notice The California Code of Regulations defines a "resident" as: (1) every individual who is in the State of California for other than a temporary or transitory purpose and (2) every individual who is domiciled in the State of California who is outside the State of California for a temporary or transitory purpose All other individuals are defined as "non-residents." If this definition of "resident" applies to you, we must adhere to certain rights and obligations regarding your personal information. ### What categories of personal information do we collect? We have collected the following categories of personal information in the past twelve (12) months: | Category | Examples | Collected | | --- | --- | --- | | A. Identifiers | Contact details, such as real name, alias, postal address, telephone or mobile contact number, unique personal identifier, online identifier, Internet Protocol address, email address and account name. | YES | | B. Personal information categories listed in the California Customer Records statute | Name, contact information, education, employment, employment history and financial information | YES | | C. Protected classification characteristics under California or federal law | Gender and date of birth | YES | | D. Commercial information | Transaction information, purchase history, financial details and payment information | NO | | E. Biometric information | Fingerprints and voiceprints | NO | | F. Internet or other similar network activity | Browsing history, search history, online behavior, interest data, and interactions with our and other websites, applications, systems and advertisements | NO | | G. Geolocation data | Device location | YES | | H. Audio, electronic, visual, thermal, olfactory, or similar information | Images and audio, video or call recordings created in connection with our business activities | YES | | I. Professional or employment-related information | Business contact details in order to provide you our services at a business level, job title as well as work history and professional qualifications if you apply for a job with us | NO | | J. Education Information | Student records and directory information | NO | | K. Inferences drawn from other personal information | Inferences drawn from any of the collected personal information listed above to create a profile or summary about, for example, an individual’s preferences and characteristics | NO | We may also collect other personal information outside of these categories instances where you interact with us in-person, online, or by phone or mail in the context of: - Receiving help through our customer support channels; - Participation in customer surveys or contests; and - Facilitation in the delivery of our Services and to respond to your inquiries. ### How do we use and share your personal information? LabsCubed Inc. collects and shares your personal information through: - Targeting cookies/Marketing cookies More information about our data collection and sharing practices can be found in this privacy notice. You may contact us by email at info@labscubed.com, by visiting [labscubed.com/get-a-quote](https://labscubed.com/get-a-quote), or by referring to the contact details at the bottom of this document. If you are using an authorized agent to exercise your right to opt-out we may deny a request if the authorized agent does not submit proof that they have been validly authorized to act on your behalf. ### Will your information be shared with anyone else? We may disclose your personal information with our service providers pursuant to a written contract between us and each service provider. Each service provider is a for-profit entity that processes the information on our behalf. The current list of our service providers can be found in below. We may use your personal information for our own business purposes, such as for undertaking internal research for technological development and demonstration. This is not considered to be "selling" of your personal data. LabsCubed Inc. has disclosed the following categories of personal information to third parties for a business or commercial purpose in the preceding twelve (12) months: - Category A. Identifiers, such as contact details, like your real name, alias, postal address, telephone or mobile contact number, unique personal identifier, online identifier, Internet Protocol address, email address and account name. - Category B. Personal information, as defined in the California Customer Records law, such as your name, contact information, education, employment, employment history and financial information. - Category C. Characteristics of protected classifications under California or federal law, such as gender or date of birth. - Category G. Geolocation data, such as device location. - Category H. Audio, electronic, visual and similar information, such as images and audio, video or call recordings created in connection with our business activities. The categories of third parties to whom we disclosed personal information for a business or commercial purpose can be found under "WHO WILL YOUR INFORMATION BE SHARED WITH?". ### Your rights with respect to your personal data #### Right to request deletion of the data - Request to delete You can ask for the deletion of your personal information. If you ask us to delete your personal information, we will respect your request and delete your personal information, subject to certain exceptions provided by law, such as (but not limited to) the exercise by another consumer of his or her right to free speech, our compliance requirements resulting from a legal obligation or any processing that may be required to protect against illegal activities. #### Right to be informed - Request to know Depending on the circumstances, you have a right to know: - whether we collect and use your personal information; - the categories of personal information that we collect; - the purposes for which the collected personal information is used; - whether we sell your personal information to third parties; - the categories of personal information that we sold or disclosed for a business purpose; - the categories of third parties to whom the personal information was sold or disclosed for a business purpose; and - the business or commercial purpose for collecting or selling personal information. In accordance with applicable law, we are not obligated to provide or delete consumer information that is de-identified in response to a consumer request or to re-identify individual data to verify a consumer request. ### Right to Non-Discrimination for the Exercise of a Consumer’s Privacy Rights We will not discriminate against you if you exercise your privacy rights. ### Verification process Upon receiving your request, we will need to verify your identity to determine you are the same person about whom we have the information in our system. These verification efforts require us to ask you to provide information so that we can match it with information you have previously provided us. For instance, depending on the type of request you submit, we may ask you to provide certain information so that we can match the information you provide with the information we already have on file, or we may contact you through a communication method (e.g. phone or email) that you have previously provided to us. We may also use other verification methods as the circumstances dictate. We will only use personal information provided in your request to verify your identity or authority to make the request. To the extent possible, we will avoid requesting additional information from you for the purposes of verification. If, however, we cannot verify your identity from the information already maintained by us, we may request that you provide additional information for the purposes of verifying your identity, and for security or fraud-prevention purposes. We will delete such additionally provided information as soon as we finish verifying you. #### Other privacy rights - you may object to the processing of your personal data - you may request correction of your personal data if it is incorrect or no longer relevant, or ask to restrict the processing of the data - you can designate an authorized agent to make a request under the CCPA on your behalf. We may deny a request from an authorized agent that does not submit proof that they have been validly authorized to act on your behalf in accordance with the CCPA. - you may request to opt-out from future selling of your personal information to third parties. Upon receiving a request to opt-out, we will act upon the request as soon as feasibly possible, but no later than 15 days from the date of the request submission. To exercise these rights, you can contact us by email at info@labscubed.com, by visiting [labscubed.com/get-a-quote](https://labscubed.com/get-a-quote), or by referring to the contact details at the bottom of this document. If you have a complaint about how we handle your data, we would like to hear from you. ## 12\. DO WE MAKE UPDATES TO THIS NOTICE? In ShortYes, we will update this notice as necessary to stay compliant with relevant laws. We may update this privacy notice from time to time. The updated version will be indicated by an updated "Revised" date and the updated version will be effective as soon as it is accessible. If we make material changes to this privacy notice, we may notify you either by prominently posting a notice of such changes or by directly sending you a notification. We encourage you to review this privacy notice frequently to be informed of how we are protecting your information. ## 13\. HOW CAN YOU CONTACT US ABOUT THIS NOTICE? If you have questions or comments about this notice, you may email us at khaled@labscubed.com or by post to: LabsCubed Inc. 14 Hoffman St. Kitchener, Ontario Canada ## 14\. HOW CAN YOU REVIEW, UPDATE, OR DELETE THE DATA WE COLLECT FROM YOU? Based on the applicable laws of your country, you may have the right to request access to the personal information we collect from you, change that information, or delete it in some circumstances. To request to review, update, or delete your personal information, please submit a request form by clicking [here](https://app.termly.io/notify/f727c2cc-f914-45bc-afc2-2e793c56f5b3). We will respond to your request within 30 days. --- --- title: "Tensile Testing Standards Guides (ASTM D638, D412) | LabsCubed" description: "Practical guides to ASTM D638 / ISO 527-2 plastic and ASTM D412 / ISO 37 rubber tensile testing, and how automation makes each test faster and more repeatable." url: https://labscubed.com/resources --- [Home](https://labscubed.com/) Resources Resources # Tensile testing standards, explained Practical guides to the standards polymer and rubber labs test to every day, with what each one measures, the equipment it needs, and how automation makes the test faster and more repeatable. - [![LabsCubed CubeTen automated plastic tensile testing machine](https://labscubed.com/assets/img/resources/cubeten-machine.webp) Plastics · ASTM D638 / ISO 527-2 **ASTM D638 / ISO 527-2 tensile testing: guide & automation** What the standard measures, specimen types, equipment and extensometers, and how to automate plastic tensile testing with the CubeTen.](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) - [![Video extensometer measuring strain on a rubber tensile specimen](https://labscubed.com/assets/img/resources/feature-video-extensometer.webp) Rubber · ASTM D412 / ISO 37 **ASTM D412 / ISO 37 rubber tensile testing: guide & automation** Dumbbell vs. ring specimens, equipment and extensometers, and how to automate rubber tensile testing with the CubeOne.](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) - [![LabsCubed test results dashboard](https://labscubed.com/assets/img/resources/step-results-dashboard.webp) White paper **Automation vs. manual testing: the data-backed case** Cost reduction and error elimination, quantified: the business case for switching to automated tensile testing.](https://labscubed.com/white-paper-automation-vs-manual-testing) From the blog ## Keep exploring The latest articles on tensile testing and lab automation. [View all articles →](https://labscubed.com/blog) - [![Universal testing machine with a necked plastic dumbbell specimen held in wedge grips](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-guide-plastics-rubber/universal-testing-machine-thumb.webp?width=640&quality=75) Tensile Testing · 9 min read **Universal Testing Machine: Complete Guide to Specifications, Applications & Automation** August 13, 2026](https://labscubed.com/post/universal-testing-machine-guide-plastics-rubber) - [Tensile Testing · 9 min read **Tensile Strength Tester: A Buyer's Guide for QA Labs** August 13, 2026](https://labscubed.com/post/tensile-strength-tester-buyers-guide) - [![Tensile test of composite materials - carbon fibre specimen clamped in tensile grips in a materials testing lab](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/tensile-test-of-composite-materials-practical-guide/6a6c86479be977e6ac041dc4_Thumb--20Tensile-20Test-20of-20Composite-20Materials-20--20LabsCubed-20Blog.webp?width=640&quality=75) Testing Standards · 9 min read **Tensile Test of Composite Materials: A Practical Guide** August 13, 2026](https://labscubed.com/post/tensile-test-of-composite-materials-practical-guide) - [![Universal testing machine for rubber - LabsCubed benchtop tester and a specimen tray being loaded by hand](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/universal-testing-machine-for-rubber-buyers-guide/6a6c62dd54cb89fa0482971a_Thumbnail--20Universal-20Testing-20Machine-20for-20Rubber-20LabsCubed-20Blog.webp?width=640&quality=75) Lab Automation · 9 min read **Universal Testing Machine for Rubber: 2026 Buyer Guide** August 13, 2026](https://labscubed.com/post/universal-testing-machine-for-rubber-buyers-guide) - [![ASTM D3039: How to Test Composite Tensile Properties](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/astm-d3039-composite-tensile-testing-automation/Thumb--ASTM-3039M-Standard---LabsCubed-Blog.webp?width=640&quality=75) Testing Standards · 9 min read **ASTM D3039: How to Test Composite Tensile Properties** August 13, 2026](https://labscubed.com/post/astm-d3039-composite-tensile-testing-automation) - [![Polymer Tensile Test: Procedure, Standards & Automation](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-tensile-test-procedure-standards-automation/Thumb---Polymer-Tensile-Test---labscube--blog.webp?width=640&quality=75) Tensile Testing · 9 min read **Polymer Tensile Test: Procedure, Standards & Automation** August 13, 2026](https://labscubed.com/post/polymer-tensile-test-procedure-standards-automation) - [![Polymer mechanical testing methods and standards](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/polymer-mechanical-testing-methods-standards-automation/thumb-polymer-mechanical-testing.webp?width=640&quality=75) Testing Standards · 9 min read **Polymer Mechanical Testing: Methods, Standards & Automation** August 7, 2026](https://labscubed.com/post/polymer-mechanical-testing-methods-standards-automation) - [![How Temperature and Humidity Affects Tensile Strength in Plastics](https://grozewxrymeiruhggcdy.supabase.co/storage/v1/render/image/public/blog-images/blog/how-temperature-and-humidity-affects-tensile-strength-in-plastics/How-Temperature-and-Humidity-Affects-Tensile-Strength-in-Plastics.png?width=640&quality=75) Data · 9 min read **How Temperature and Humidity Affects Tensile Strength in Plastics** June 29, 2026](https://labscubed.com/post/how-temperature-and-humidity-affects-tensile-strength-in-plastics) --- --- title: "ASTM D412 / ISO 37 Rubber Tensile Testing: Guide & Automation | LabsCubed" description: "Automated ASTM D412 testing, explained: what ASTM D412 and ISO 37 measure, dumbbell vs. ring specimens, equipment and extensometers, and how the CubeOne automates rubber tensile testing." url: https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing --- 1. [Home](https://labscubed.com/) 2. [Resources](https://labscubed.com/resources) 3. ASTM D412 / ISO 37 # ASTM D412 Explained: A Complete Guide to Rubber Tensile Testing This guide walks through the ASTM D412 testing process, including specimen preparation, testing equipment, extensometer options, material compatibility, and expected data. Exploring practical examples using the CubeOne workflow, it becomes clear how automation helps streamline the testing process. 11 min read Updated September 10, 2026 [Official Standard](https://store.astm.org/d0412-16.html) ## On this page 01 Overview 02 What it measures 03 When to use it 04 Specimen types 05 Equipment 06 Extensometers 07 Test workflow 08 Repeatability 09 Data & reporting 10 Automating the test 11 FAQ ## How to Follow ASTM D412 for Rubber Tensile Testing ASTM D412 is the widely accepted standard method for determining the tensile properties of rubber and elastomers. Whether you're evaluating materials for product development, regulatory compliance, or quality assurance, understanding and correctly applying these steps ensures accurate, repeatable results. This guide walks through the ASTM D412 testing process, including: - Specimen preparation - Testing equipment - Extensometer options - Material compatibility, and expected data Exploring practical examples using the CubeOne workflow, it becomes clear how automation helps streamline the testing process. The official standard is available from ASTM: [ASTM D412 on astm.org](https://store.astm.org/d0412-16.html). ### Key takeaways - ASTM D412 is the widely accepted standard method for determining the tensile properties of rubber and elastomers; ISO 37 is its international counterpart. - Method A uses dogbone-shaped samples (6 types) and Method B is intended for ring-shaped specimens (2 types). Method A is the more commonly used and is supported by the CubeOne system. - A compliant setup needs controlled test speeds, a load cell suited to low-force high-elongation elastomers, non-slip grips, a compliant strain measurement system, and precision thickness measurement. - Temperature, humidity, and testing speed can affect test results, so these factors should be controlled to ensure accurate results. ## What Does ASTM D412 Measure? ASTM D412 is a standardized test method used to measure the tensile properties of rubber and thermoplastic elastomers under controlled loading. It assesses the material's elasticity, measuring how much it stretches under tension and how much permanent deformation remains after the load is removed. 01 Tensile Strength The maximum tensile stress a material can withstand before breaking. 02 Tensile Stress at a Given Elongation (Modulus) The stress required to stretch the material to a specific strain level or elongation (e.g., 100%, 200%, or 300%). It quantifies the stiffness of the rubber at defined points along the strain curve and is useful for comparing material rigidity. 03 Ultimate Elongation The amount of elongation a material can withstand before failure (elongation at break). 04 Tensile Set The amount of permanent deformation remaining after a material is stretched and allowed to relax, indicating the material’s tendency to deform permanently under stress. 05 Stress-Strain Behavior The stress-strain curve visually depicts how rubber responds to tension, illustrating elasticity, yield points, and, when applicable, fracture behavior. For highly elastic materials, the test may not reach fracture, focusing instead on elongation and recovery characteristics. This data helps engineers, product designers, and quality control specialists assess material performance in applications where rubber undergoes stretching forces. **Note:** While ASTM D412 and ISO 37 use different test speeds and specimen dimensions, they both serve the same purpose: measuring the tensile behaviour of elastomeric materials under controlled conditions. ![CubeGo automated tensile testing machine for R&D labs](https://labscubed.com/assets/img/resources/astm-d412/cube-go-labscubed.webp) ## When Should You Use ASTM D412 or ISO 37? ASTM D412 applies to: - Testing thermoset rubber (e.g. natural rubber, neoprene, nitrile, EPDM) - Testing thermoplastic elastomers (TPEs, TPVs) used in molded parts or flexible components - Measuring material consistency during quality control or batch testing - Validating new rubber compounds in R&D and formulation work - Comparing mechanical performance across suppliers or materials - Ensuring products meet customer, industry, or regulatory requirements ASTM D412 is commonly used in the automotive, aerospace, medical, and other industries to ensure rubber materials meet strength and elongation requirements. It's the primary tensile test method for quality control and product development involving rubbers, especially in North America. The international counterpart, ISO 37, follows a similar approach and is more widely used in Europe and other regions. Both standards are used to evaluate the stress-strain behavior of vulcanized rubber and thermoplastic elastomers. Choosing between standards depends on whether your project or customer follows North American (ASTM) or international (ISO) quality standards. ### CubeOne is designed for labs performing regular tensile testing on elastomers Whether for production control, research, or certification, it's ideal for: Labs needing to test up to 12 samples in a single run Manufacturers looking to reduce operator time and human error Teams focused on improving test repeatability and traceability Any organization currently running ASTM D412 or ISO 37 manually and seeking automation These standards should be your go-to method any time the goal is to understand how rubber will stretch, perform, and ultimately fail under load — and CubeOne ensures you can do that with accuracy, speed, and minimal effort. ## ASTM D412 Specimen Types ASTM D412 outlines two testing procedures based on the specimen shape, and it's important to note that the results from each method may differ. Method A uses dogbone-shaped samples (6 types), while Method B is intended for ring-shaped specimens (2 types). Method A is the more commonly used and is supported by the CubeOne system, as illustrated below. Sample thickness is typically 3 mm (0.12 inches). Note, the thicker the sample, the greater force required to stretch it. ![ASTM D412 - Types A, B, C, D, E, F - Tensile Testing LabsCubed](https://labscubed.com/assets/img/resources/astm-d412/ASTM-D412-Specimen-Types-Tensile-Testing.webp) True relative scale — drawn to one another's real proportions ASTM D412 Die C Standard rubber dog-bone — the most common elastomer die. Overall length 115 mm Narrow width 6 mm Gauge length 25 mm Thickness 1.5–3 mm Use case The industry standard die in North America ### Dogbone vs. ring specimens | | Dogbone Specimens | Ring Specimens | | --- | --- | --- | | Test Method | A | B | | Shape | Narrowed middle (dogbone) | Continuous loop | | Gripping method | Flat jaws | Rollers or mandrels | | Most common use | General tensile testing | Testing of O-rings, gaskets | | Industry standard | Yes (especially Type C in North America.) | Less common but useful for rings | | Stress distribution | High in gauge area | Uniform across the ring | | Notes | Requires die-cutting | Requires a ring mold or a cutting tool | Dogbone samples are typically die-cut from molded sheets or plaques, and the grain direction from the extrusion process can influence results. To maintain consistency, specimens should be cut so that their length runs parallel to this grain. ## Equipment & Testing Environment Requirements A system configured for ASTM D412 or ISO 37 rubber dogbone tensile testing must include: - A tensile frame capable of controlled, standard-compliant test speeds - A calibrated load cell suited for low-force, high-elongation elastomer testing - Grips to securely hold rubber specimens without slippage or deformation - A compliant strain measurement system (physical or video extensometer) - Precision thickness measurement tools for consistent specimen validation CubeOne is purpose-built to meet and exceed these requirements. Its automation eliminates manual setup and ensures repeatable, accurate results on every test. It’s the ideal solution for quality control and R&D labs working with rubber and elastomers. For globally aligned applications, ISO 37 is a commonly used international equivalent to ASTM D412, with slight variations in specimen dimensions and test speeds. CubeOne supports both standards with seamless method selection. ![5-sample tray for automated tensile testing in R&D labs](https://labscubed.com/assets/img/resources/astm-d412/80acba2d069f9161232716441ecbc38a_tray_cube_go_5samples.webp) ## Extensometer Options for ASTM D412 Accurate strain measurement is crucial for rubber tensile testing. CubeOne supports two of the three extensometer technologies, all optimized to meet the accuracy and compliance requirements of ASTM D412 and the equivalent international standard, ISO 37. Not on CubeOne Automated Physical Extensometer Measures strain using physical gauge arms Best for Rigid elastomers where high repeatability and accuracy are needed. On CubeOne Video Extensometer Non-contact optical tracking for strain measurement Best for Delicate samples or high-elongation rubbers. On CubeOne Crosshead Displacement Uses built-in displacement tracking for basic strain measurements Best for General-purpose tests i.e., low/high-elongation rubbers or quick tests. ## How to Perform a Tensile Strength Test on Rubber (ASTM D412 or ISO 37) CubeOne simplifies tensile test process: ![Loading rubber samples into the CubeOne tray for automated tensile testing.](https://labscubed.com/assets/img/resources/astm-d412/step1_cube_one_tray.webp) Step 1 ### Loading your samples Simply load up to 12 rubber samples into the CubeOne tray, even if they come from different compounds or production batches. [Request a Quote or Demo](https://labscubed.com/get-a-quote) ![Starting a tensile test from the LabsCubed touchscreen interface.](https://labscubed.com/assets/img/resources/astm-d412/4-start-tensile-testing-touch-cubeten-astmd638.webp) Step 2 ### Start the Test Launch the ASTM D412 or ISO 37 method from the touchscreen. CubeOne pulls the specimen while recording real-time load, displacement, and strain data. [Request a Quote or Demo](https://labscubed.com/get-a-quote) ![CubeOne running tensile testing on rubber samples.](https://labscubed.com/assets/img/resources/astm-d412/testing_sample_cube_one_tensile.webp) Step 3 ### Measure, Test, Discard the Samples and Repeat. Before testing begins, the system automatically measures thickness using calibrated sensors. The specimen is aligned and clamped using self-centering grips that apply consistent force. No manual adjustments or setup required. [Request a Quote or Demo](https://labscubed.com/get-a-quote) ![CubeOne tensile test results for ASTM D412 shown in the LabsCubed data view.](https://labscubed.com/assets/img/resources/astm-d412/data_cube_one_astm_d412.webp) Step 4 ### Capture and Export Results As each test completes, CubeOne instantly delivers tensile strength, elongation, modulus, and full stress-strain curves. Results are immediately available for review on-screen, in the LabsCubed Portal, or exported to your LIMS, ERP, or QA platform. [Request a Quote or Demo](https://labscubed.com/get-a-quote) This fully automated workflow eliminates operator-dependent variation, speeds up your testing process, and ensures every test is consistent and compliant with ASTM D412 and ISO 37 standards. ## How CubeOne Delivers Repeatable Results ### Where manual setup introduces variability Traditional universal testing machines rely on manual setup, introducing variability through: - Inconsistent specimen alignment - Uneven gauge length marking - Variable grip pressure or technique These small differences can impact strain accuracy, cause slippage, or skew results, even with calibrated equipment. ### How CubeOne removes it CubeOne automates alignment, gripping, and measurement in tensile testing, eliminating sources of human error and producing consistent results: - Automatic sample measurement: Calibrated sensors instantly capture width and thickness, no manual tools required. - Smart vision system: Detects specimen edges, even with varied colors or finishes. - Auto-alignment: Self-centering grips and alignment verification ensure precise positioning every time. ## Data Integration and Reporting with CubeOne All test results can be reviewed, compared, and exported via the LabsCubed Portal, which offers: Interactive Stress-Strain Visualization (A) Real-time overlay of multiple curves for side-by-side comparison, with cursor tracking to inspect individual data points, such as strain, stress, and modulus at key elongations. Batch Testing Reports and Statistical Summaries (B) Automatically calculates mean, median, standard deviation, and coefficient of variation (CoV) for stress, strain, and modulus values across test sets. Specimen-Level Tracking (C) Each test includes timestamped records, operator ID, test speed, and precise specimen dimensions (measured and auto-detected), providing full traceability. Flexible Data Filtering (D) Users can exclude or include specific samples, view slot-level test details, and customize which results are shown in summary calculations. Export Options (E) Results are instantly available for download in CSV or PDF format, or can be exported directly into LIMS, ERP, or QA systems through API integration. ![LabsCubed Portal - Stress, Strain, Force - Tensile Testing Data](https://labscubed.com/assets/img/resources/astm-d412/Data-Analysis-Tensile-Testing-ASTM-D412-LabsCubed.webp) ## Concluding Remarks ASTM D412 is an essential standard for evaluating the tensile behaviour of rubber and elastomers, offering detailed insights into material strength, stretchability, and durability. By following the method precisely (using the appropriate specimen type, equipment, and testing conditions), labs can collect reliable data that is critical for quality control, product development, and regulatory compliance. Automated systems like CubeOne enhance this process by eliminating variability from manual steps, improving repeatability, and accelerating testing workflows. Whether you're testing a single material or running high-throughput batches, CubeOne streamlines ASTM D412 compliance while delivering accurate, actionable results at scale. ## Automating ASTM D412 testing Automated ASTM D412 testing takes the manual handling out of rubber tensile testing. Elastomer results are especially sensitive to how each dumbbell is measured and clamped: a small thickness error or an off-centre grip shows up directly in tensile strength and elongation at break. With the [CubeOne automated rubber tensile testing machine](https://labscubed.com/rubber-testing), a technician loads up to 12 ASTM D412 or ISO 37 specimens at once. CubeOne measures each specimen's thickness, grips it, pulls it while a video extensometer tracks strain up to 1000% elongation, and saves the results automatically, test after test, without an operator standing by. The same machine also runs ASTM D624 tear tests (Die B and Die C). The result is repeatable D412 data across shifts and operators, a traceable record for every specimen, and hours of technician time back every week. [See the CubeOne automated rubber tester →](https://labscubed.com/rubber-testing) ## Looking to automate ASTM D412 tensile testing? Download the CubeOne brochure to discover how automation can help your lab save time on repetitive tasks, reduce data variations, and let your team focus on the work that really matters. Thank you! Your submission has been received! ![CubeOne Brochure - Download to Learn about CubeOne Rubber Tensile Testing Equipment](https://labscubed.com/assets/img/resources/astm-d412/cube_one_download_brochure_labscubed.webp) ## Frequently asked questions What is the difference between ASTM D412 and ISO 37? Both evaluate the stress-strain behavior of vulcanized rubber and thermoplastic elastomers. ASTM D412 is the primary method in North America; ISO 37 follows a similar approach and is more widely used in Europe and other regions. They use different test speeds and specimen dimensions, but serve the same purpose. Choosing between them depends on whether your project or customer follows North American or international quality standards. What is the difference between Method A and Method B? Method A uses dogbone-shaped samples (6 types) and Method B is intended for ring-shaped specimens (2 types). Method A is the more commonly used and is the method supported by CubeOne. Dogbones are gripped in flat jaws and concentrate stress in the gauge area; rings are gripped on rollers or mandrels and distribute stress uniformly, which suits O-rings and gaskets. Which properties does ASTM D412 report? Tensile strength, tensile stress at a given elongation (modulus), ultimate elongation, tensile set, and the full stress-strain curve. For highly elastic materials the test may not reach fracture, in which case the focus shifts to elongation and recovery characteristics. Does CubeOne support all extensometer types? CubeOne supports two of the three: video extensometer and crosshead displacement. An automated physical extensometer is not available on CubeOne. What test conditions need to be controlled? Temperature, humidity, and testing speed can all affect results and should be controlled. Specimen preparation matters too: dogbones are typically die-cut from molded sheets or plaques, and should be cut so their length runs parallel to the extrusion grain direction. ## Related resources [Standard guide ASTM D638 / ISO 527-2 plastic tensile testing The plastics counterpart to D412 — specimen geometries, equipment, and how CubeTen automates them.](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing)[Product CubeOne automated rubber tensile testing Up to 12 elastomer specimens loaded once, measured, gripped, and pulled unattended.](https://labscubed.com/rubber-testing)[Data The LabsCubed Portal Interactive stress-strain visualization, batch statistics, specimen-level traceability, CSV/PDF and API export.](https://labscubed.com/get-a-quote) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. 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All rights reserved. --- --- title: "ASTM D638 / ISO 527-2 Tensile Testing: Guide & Automation | LabsCubed" description: "Automated ASTM D638 testing, explained: what ASTM D638 and ISO 527-2 measure, specimen types, equipment and extensometers, and how the CubeTen automates every step of plastic tensile testing." url: https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing --- 1. [Home](https://labscubed.com/) 2. [Resources](https://labscubed.com/resources) 3. ASTM D638 / ISO 527-2 # ASTM D638/ISO 527-2 Explained: Everything You Need to Know About Plastic Tensile Testing This comprehensive guide walks you through the full D638 testing process, including specimen setup, testing equipment, extensometer options, material compatibility, and the data you can expect to collect. It also includes integrated examples of how CubeTen automates and improves each step. 12 min read Updated September 10, 2026 [Official Standard](https://www.astm.org/d0638-14.html) ## On this page 01 Overview 02 What it measures 03 When to use it 04 Test workflow 05 Equipment 06 Extensometers 07 Specimen types 08 Measurement & alignment 09 Data & integration 10 Automating the test 11 FAQ ## How to follow ASTM D638 for plastics tensile testing step by step ASTM D638 is the internationally recognized standard method for determining the tensile properties of plastics. Whether you're testing materials for product development, regulatory compliance, or quality control, understanding and correctly applying this method is essential for accurate, consistent results. This comprehensive guide walks you through the full D638 testing process, including specimen setup, testing equipment, extensometer options, material compatibility, and the data you can expect to collect. It also includes integrated examples of how CubeTen automates and improves each step. Official Standard: [ASTM D638 on astm.org](https://www.astm.org/d0638-14.html) ### Key takeaways - ASTM D638 (and its international counterpart ISO 527-2) is the reference method for the tensile properties of rigid and semi-rigid plastics. - A compliant setup needs controlled crosshead speed, a calibrated load cell, non-slip grips, an extensometer, and accurate width and thickness measurement. - Type I and Type IV are the two geometries most labs run; CubeTen handles both with automated gripping, alignment, and extensometer placement. - Manual positioning, gauge marking, and clamping are the main sources of test-to-test variation — automating them removes the operator from the result. ## What Does ASTM D638 Measure? ASTM D638 is used to evaluate the tensile behavior of plastics under uniaxial stress. The method measures: 01 Tensile strength (at yield and break) Tensile strength is the maximum force a material can withstand while being stretched. At yield, it's the point where plastic deformation begins. At break, it's the point where the specimen physically fractures. 02 Strain and elongation at break Strain is the percentage change in length during testing. Elongation at break shows how much the material stretches before failure. It's a key indicator of ductility and flexibility. 03 Modulus of elasticity (Young's modulus) This measures a material's stiffness — how much it resists deformation under load. It's calculated from the slope of the linear portion of the stress-strain curve. Higher modulus = stiffer material. 04 Yield strain Yield strain is the amount of strain a material experiences at the yield point. It marks the transition from elastic (reversible) to plastic (permanent) deformation. Beyond this, the material won't return to its original shape. 05 Stress-strain behavior This curve shows how a material responds to tension from start to failure. It visually represents strength, elasticity, yield, and fracture behavior. It’s the most comprehensive snapshot of material performance under load. This data helps engineers, product designers, and quality assurance teams ensure that materials meet performance expectations under load. ## When Should You Use ASTM D638 or ISO 527-2? ASTM D638 is applicable when testing: - Rigid and semi-rigid thermoplastics - Thermosets - Reinforced plastics - Injection-moulded or machined plastic parts It is the go-to tensile test method for most quality control and product development processes involving plastics, particularly in North America. For international or globally aligned applications, ISO 527-2 is a closely related standard. It outlines a similar methodology for determining the tensile properties of plastics and is commonly referenced in Europe and other regions. ## How to efficiently Perform a Tensile Strength Test on Plastics (ASTM D638/ISO 527-2) Performing a tensile strength test according to ASTM D638 (or ISO 527-2) involves a clear, repeatable sequence, especially when using an automated system like CubeTen. Below is the typical workflow: ![Technician's hand placing a tensile test specimen into the LabsCubed automated sample tray for precise material testing.](https://labscubed.com/assets/img/resources/step-load-hand.webp) Step 1 ### Loading your samples Simply load up to 15 tensile samples, with your choice of mixed compounds and different materials. [Request a Quote or Demo](https://labscubed.com/get-a-quote) ![User's hand interacting with the LabsCubed touchscreen interface, demonstrating intuitive control of automated tensile testing parameters.](https://labscubed.com/assets/img/resources/step-configure-ui.webp) Step 2 ### Start the Test Launch the ASTM D638 or ISO 527 method from the touchscreen. CubeTen pulls the specimen to fracture while recording real-time load, displacement, and strain data. [Request a Quote or Demo](https://labscubed.com/get-a-quote) ![Close-up view of the intricate internal mechanism and wiring of a LabsCubed automated tensile testing machine, showing precision engineering.](https://labscubed.com/assets/img/resources/step-mechanism.webp) Step 3 ### Measure and Grip Automatically CubeTen's vision system measures specimen width, and calibrated sensors capture thickness automatically for full dimensional compliance. The specimen is then secured with a consistent gripping force. No operator intervention needed. [Request a Quote or Demo](https://labscubed.com/get-a-quote) ![LabsCubed software dashboard displaying detailed tensile test results, stress-strain curves, and material properties for plastic compounds, including ASTM D638 data.](https://labscubed.com/assets/img/resources/step-results-dashboard.webp) Step 4 ### Capture and Export Results Stress-strain curves, tensile strength, modulus, and elongation are captured instantly. Data is available immediately for review in the LabsCubed Portal or export to your LIMS, ERP, or QA system. [Request a Quote or Demo](https://labscubed.com/get-a-quote) This workflow removes operator variability and dramatically reduces time per test, while ensuring full compliance with ASTM and ISO testing standards. ## Equipment Requirements A system configured for ASTM D638 must include: - A tensile frame with controlled crosshead speed - A calibrated load cell appropriate to expected failure loads - Proper grips to hold the specimen without slippage or damage - A strain measurement system (extensometer) - Accurate thickness and width measurement tools It is the go-to tensile test method for most quality control and product development processes involving plastics, particularly in North America. For international or globally aligned applications, ISO 527-2 is a closely related standard. It outlines a similar methodology for determining the tensile properties of plastics and is commonly referenced in Europe and other regions. ## Extensometer Options for ASTM D638 CubeTen supports three extensometer technologies — all optimized to meet the accuracy and compliance requirements of ASTM D638 and the equivalent international standard, ISO 527. ![Crosshead Displacement](https://labscubed.com/assets/img/resources/feature-crosshead.webp) Crosshead Displacement Built-in, calibrated displacement system for basic strain measurements. Use case Low/High-elongation materials or quick tests. ![Automated Physical Extensometer](https://labscubed.com/assets/img/resources/feature-thickness.webp) Automated Physical Extensometer Tracks specimen elongation during testing using mechanical gauge arms. Use case Rigid plastics where high repeatability and accuracy are needed. ![Video Extensometer](https://labscubed.com/assets/img/resources/feature-video-extensometer.webp) Video Extensometer Non-contact, high-resolution strain tracking across the gauge length. Use case Delicate samples or high-elongation materials. ## ASTM D638 Specimen Types ASTM D638 defines five specimen geometries, with Type I and Type IV being the most commonly used. Select one to see its true dimensions. True relative scale — drawn to one another's real proportions ASTM D638 Type I Standard rigid-plastic tensile bar — the most common geometry. Overall length 165 mm Narrow width 13 mm Gauge length 50 mm Thickness 3.2 mm Use case Standard for rigid plastics CubeTen is optimized to handle both types through automated gripping, alignment, and extensometer placement. Specimen Reference: [https://www.astm.org/d0638-14.html](https://www.astm.org/d0638-14.html) ## Specimen Measurement & Alignment ### Why it's important For a tensile test to be accurate and repeatable, each specimen must be measured and aligned correctly. Even minor errors can lead to: - Uneven load distribution - Premature specimen failure - Incorrect strain and modulus data ### How CubeTen ensures precision - CubeTen automatically measures the width and thickness of each sample using calibrated sensors. No manual tools needed. - Measurements happen instantly during the loading stage, saving time and improving consistency. - A built-in smart vision system detects the edges of each specimen, including those with different colours or surface finishes. - The system auto-aligns each sample in the grips with precision, using self-centering mechanisms and alignment verification. ## Data Review, Integration, and Consistency All test results can be reviewed, compared, and exported via the LabsCubed Portal, which offers: - Interactive stress-strain visualization - Batch testing reports and comparisons - Integration with LIMS, ERP, or external systems via API - Direct data export (CSV, PDF) ![LabsCubed software dashboard displaying detailed tensile test results, stress-strain curves, and material properties for plastic compounds, including ASTM D638 data.](https://labscubed.com/assets/img/resources/step-results-dashboard.webp) With CubeTen, results are consistent and repeatable, even across shifts or operators, a critical factor for high-throughput labs or multi-site operations. In traditional vertical testing machines, manual handling introduces variability at nearly every step: - 01 Slight differences in how operators position specimens in the grips can lead to misalignment - 02 Inconsistent gauge length marking and measurement affect strain accuracy - 03 Variations in grip pressure or clamping technique can cause premature slippage or breakage Each of these issues contributes to test-to-test variation, even with calibrated equipment. Beyond data variability, these repetitive setup steps consume valuable operator time, time that could be redirected toward analysis or higher-value tasks. CubeTen automates alignment, gripping, and measurement, eliminating these sources of human error and delivering precise, standardized inputs across every test. This not only boosts consistency but also maximizes lab efficiency through automation. ## Automating ASTM D638 testing Automated ASTM D638 testing replaces the manual steps around each pull (measuring, loading, gripping and recording) with a system that runs them the same way every time. Most of the variability in D638 results doesn't come from the test frame itself; it comes from how each specimen is measured, positioned and clamped, and from results typed in by hand. With the [CubeTen automated tensile testing machine](https://labscubed.com/plastic-testing), a technician loads up to 15 ASTM D638 or ISO 527-2 specimens on a tray and starts the method. CubeTen measures each specimen's width and thickness, grips it with a consistent force, runs the test with a physical or video extensometer, and saves the stress-strain curve, tensile strength, modulus and elongation automatically before moving on to the next specimen. For QC labs running dozens of D638 tests a day, automation means results that don't depend on who ran them, a traceable record for every specimen, and technicians freed from repetitive setup. Mixed batches become practical too: different compounds can share the same tray. [See the CubeTen automated tensile tester →](https://labscubed.com/plastic-testing) ## Looking to automate ASTM D638 tensile testing? Download the CubeTen brochure to discover how automation can help your lab save time on repetitive tasks, reduce data variations, and let your team focus on the work that really matters. Thank you! Your submission has been received! ![LabsCubed CubeTen automated plastic tensile testing machine shown alongside its key components, features, and supported tensile sample types (ASTM D638, ISO 527-2).](https://labscubed.com/assets/img/resources/cubeten-machine.webp) ## Frequently asked questions What is the difference between ASTM D638 and ISO 527-2? Both determine the tensile properties of plastics using a dog-bone specimen pulled to fracture. ASTM D638 is the reference in North America; ISO 527-2 is the equivalent used in Europe and most other regions. Specimen geometries and reported values are closely aligned, so results are broadly comparable when the test speed and specimen type are matched. Which ASTM D638 specimen type should I use? Type I is the default for rigid plastics 7 mm thick or less. Type IV is used for thin plastics and films, and when comparing materials of different rigidity. Type II covers materials that will not break as a Type I, Type III covers thick sections up to 14 mm, and Type V is a micro-tensile geometry for limited material. Do I need an extensometer for ASTM D638? An extensometer is required whenever modulus or strain values are reported. Crosshead displacement is acceptable for basic elongation checks, but it includes machine compliance and will overstate strain. CubeTen supports crosshead displacement, an automated physical extensometer, and a video extensometer. What test speed does ASTM D638 specify? Speed is set by the specimen type and the material being tested, and the standard lists the permitted crosshead rates for each. The rate must be held constant through the test, which is why controlled crosshead speed is an equipment requirement rather than an option. How does automation improve ASTM D638 repeatability? Manual positioning, gauge marking, and clamping are the main sources of test-to-test variation. CubeTen measures width and thickness with calibrated sensors, auto-aligns each specimen in the grips, and applies a consistent gripping force, so the operator is removed from the result. ## Related resources [Standard guide ASTM D412 / ISO 37 rubber tensile testing The elastomer counterpart to D638 — dumbbell geometries, test speeds, and how CubeOne automates them.](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing)[Product CubeTen automated plastic tensile testing Up to 15 specimens loaded once, gripped, measured, and pulled unattended.](https://labscubed.com/plastic-testing)[White paper Beyond the bottleneck: the data-backed case for automation Cost reduction and error elimination, quantified — the business case for switching to automated tensile testing.](https://labscubed.com/white-paper-automation-vs-manual-testing) ## Building the Autonomous Tensile Lab. We build the automated systems that bring true autonomy to tensile testing. Remove repetitive manual work from your workflows and empower your lab to run around the clock with precision. [Get a Quote](https://labscubed.com/get-a-quote) ![LabsCubed](https://labscubed.com/assets/img/logo.webp) Company [Home](https://labscubed.com/) [About Us](https://labscubed.com/about-us) [Blog](https://labscubed.com/blog) [Events](https://labscubed.com/events) [Webinars](https://labscubed.com/webinar) Products [Rubber Testing](https://labscubed.com/rubber-testing) [Plastic Testing](https://labscubed.com/plastic-testing) Resources [All Resources](https://labscubed.com/resources) [ASTM D638 Guide](https://labscubed.com/resources/astm-d638-iso-527-2-plastic-tensile-testing) [ASTM D412 Guide](https://labscubed.com/resources/astm-d412-iso-37-rubber-tensile-testing) [White Paper](https://labscubed.com/white-paper-automation-vs-manual-testing) Help [FAQs](https://labscubed.com/#faqs) [Get a Quote](https://labscubed.com/get-a-quote) [Request Demo](https://labscubed.com/get-a-quote) Legal [Privacy Policy](https://labscubed.com/privacy-policy) Contact [info@labscubed.com](mailto:info@labscubed.com) [(519) 749-0460](tel:+15197490460) Kitchener, ON © 2026 LabsCubed Inc. All rights reserved. --- --- title: "Rubber Tensile Testing Machines | LabsCubed CubeOne" description: "The CubeOne automated rubber tensile testing machine — up to 12 specimens tested unattended to ASTM D412, ISO 37 and ASTM D624 tear, with automatic thickness measurement." url: https://labscubed.com/rubber-testing --- CubeOne · Rubber testing # The rubber tensile testing machine, revolutionized. The CubeOne measures, grips and pulls up to 12 rubber specimens unattended — ASTM D412, ISO 37 and ASTM D624 results your whole lab can trust. [Get a Quote](https://labscubed.com/get-a-quote) See what it tests Specimens the CubeOne tests ![ASTM D412](https://labscubed.com/assets/img/standards/astm-logo.webp) Die C ASTM D412 Automated Rubber Tensile Testing ![ASTM D412](https://labscubed.com/assets/img/standards/astm-logo.webp) Die D ASTM D412 Automated Rubber Tensile Testing ![ISO 37](https://labscubed.com/assets/img/standards/iso-logo.webp) Type 2 ISO 37 Automated Rubber Tensile Testing ![ASTM D624](https://labscubed.com/assets/img/standards/astm-logo.webp) Die C ASTM D624 Automated Rubber Tear Testing ![ASTM D624](https://labscubed.com/assets/img/standards/astm-logo.webp) Die B ASTM D624 Automated Rubber Tear Testing Explore the full specimen library ![ASTM D412](https://labscubed.com/assets/img/standards/astm-logo.webp) Die C ASTM D412 Automated Rubber Tensile Testing ![ASTM D412](https://labscubed.com/assets/img/standards/astm-logo.webp) Die D ASTM D412 Automated Rubber Tensile Testing ![ISO 37](https://labscubed.com/assets/img/standards/iso-logo.webp) Type 2 ISO 37 Automated Rubber Tensile Testing ![ASTM D624](https://labscubed.com/assets/img/standards/astm-logo.webp) Die C ASTM D624 Automated Rubber Tear Testing ![ASTM D624](https://labscubed.com/assets/img/standards/astm-logo.webp) Die B ASTM D624 Automated Rubber Tear Testing See all samples ## Built to remove every variable. The CubeOne is a user-friendly automated testing machine designed specifically for rubber and elastomers. ### Recover lab time Load the tray and walk away — the CubeOne saves up to 85% of your team's testing time for higher-value work. ### Optimize your lab Maximize ROI while accelerating lab results and making better use of every technician hour. ### Ensure data consistency Automated testing delivers up to 40% more consistent results, proven by extensive studies. Specimen library ### Every rubber specimen the CubeOne tests. ASTM D412 and ISO 37 dumbbells for tensile, plus ASTM D624 tear dies — select one to see its dimensions. Mix compounds and specimen types on the same tray. ASTM D412 Die C Tensile Standard rubber dog-bone — the most common elastomer die. Overall 115 mm Gauge 25 mm Narrow W 6 mm Thickness 1.5–3 mm ![ASTM D412](https://labscubed.com/assets/img/standards/astm-logo-ink.webp) ASTM D412 Die C Automated rubber tensile testing to ASTM D412 — loaded, gripped and measured unattended, end to end. ## Trusted by quality teams worldwide. Real words from rubber and elastomer labs running the CubeOne every day. > “We've added the CubeOne to our quality department. This allowed for better repeatability of the measurements and gave the technician time to perform other tasks during each test sequence. The LabsCubed team was very responsive in adapting the interface with our other systems.” Jean-Damien R&D Laboratory Chemist · Quebec, Canada ![Soucy Techno](https://labscubed.com/assets/img/testimonials/logo-soucy.webp) ![Technician loading specimens onto a LabsCubed tray](https://labscubed.com/assets/img/plastic-testing/stats-bg.webp) Real test · Black neoprene ## Watch a real CubeOne test, synced to its data. Specimen 01 of a 10-specimen black neoprene run to ASTM D412 Die C. The CubeOne measures and grips the dumbbell, then pulls at a constant 500 mm/min until it breaks — follow the speed and strain as the point climbs the curve. Crosshead speed 0 mm/min **Loading & gripping** · Thickness measured, dumbbell clamped — crosshead stationary Speed over the test 0 500 mm/min Video time 0.0 s Strain 0.00 % Stress 0.00 MPa 10 Specimens tested All 10 pulled to break, no aborts 1.80% Break stress CV mean 9.21 MPa 2.48% Break strain CV mean 491.10% 0.65% 300% modulus CV mean 5.88 MPa | Property | Mean | ± SD | CV | Min | Max | | --- | --- | --- | --- | --- | --- | | Break stress MPa | 9.21 | 0.17 | 1.80% | 8.88 | 9.41 | | Break strain % | 491.10 | 12.20 | 2.48% | 475.24 | 507.87 | | Tensile strength (max stress) MPa | 9.21 | 0.17 | 1.81% | 8.88 | 9.42 | | Strain at max stress % | 491.04 | 12.11 | 2.47% | 475.24 | 507.32 | | 100% modulus MPa | 2.73 | 0.03 | 1.19% | 2.69 | 2.79 | | 200% modulus MPa | 4.86 | 0.05 | 1.13% | 4.77 | 4.94 | | 300% modulus MPa | 5.88 | 0.04 | 0.65% | 5.82 | 5.95 | ## Load, configure, press start. Done. Three steps from specimen to results — and the CubeOne handles everything in between. 01 ### Load your samples Load up to 12 tensile or tear specimens at once — mix compounds and materials on the same tray. 02 ### Start the test Enter compound names on the touchscreen and start the run with a single touch. 03 ### Review your data When the run finishes, review results on the machine touchscreen, in your own system, or in the LabsCubed cloud. ## The numbers that matter. Lead with the outcomes, then check them against the full specification. 85% of technician testing time recovered for higher-value work. 40% more consistent results, proven by extensive studies. 12 rubber specimens loaded and tested in a single run. ### CubeOne specification Key features and performance criteria of the CubeOne. ![CubeOne automated rubber tensile testing machine](https://labscubed.com/assets/img/media/machine-cubeone.webp) Tensile standards ASTM D412 · ISO 37 Tear standard ASTM D624 (Die B, Die C) Force (Omega Load Cell) Up to 1 kN Max elongation 1000% Max speed 150 mm/s (6 in/s) Sample capacity Up to 12 specimens per run Thickness Measured automatically Strain measurement Crosshead · video extensometer Weight 150 lbs (75 kg) Power supply Standard 110 V outlet ## Download the CubeOne brochure Specs, supported standards and specimen types, and how the CubeOne automates rubber tensile and tear testing, in one PDF. We'll email it to you. Thank you! Your submission has been received! ![LabsCubed CubeOne automated rubber tensile testing machine brochure](https://labscubed.com/assets/img/resources/astm-d412/cube_one_download_brochure_labscubed.webp) Measurement ## How the CubeOne measures strain accurately Every CubeOne pairs a built-in encoder with a non-contact video extensometer, so each elastomer is measured by the right method — even at very high elongations. ![Crosshead Displacement](https://labscubed.com/assets/img/media/crosshead.webp) Built-in · No setup Crosshead Displacement Strain is derived from crosshead travel, read by the servo motor's high-resolution encoder. Always on, with nothing to attach or calibrate per sample. Best for High-throughput runs, elastomers and large elongations that exceed an extensometer’s travel. ![Video Extensometer](https://labscubed.com/assets/img/media/video-extensometer.webp) Optical · Non-contact Video Extensometer High-speed cameras track contrast marks on the specimen, measuring strain without ever touching it — so nothing slips or loads the sample. Best for Thin films, soft or delicate materials, and strain-to-break measurement. Support ## Frequently asked questions What is the CubeOne? The CubeOne is LabsCubed's automated tensile testing machine for rubber and elastomers. Load up to 12 specimens at once and it measures thickness, grips and pulls each one unattended — with a force capacity of up to 1 kN, elongation up to 1000% and speeds up to 150 mm/s — while your team moves on to higher-value work. Is the CubeOne a universal testing machine for rubber? It does the job a universal testing machine (UTM) does in a rubber lab, as a dedicated rubber tensile testing machine: tensile testing to ASTM D412 and ISO 37 and tear testing to ASTM D624, up to 1 kN. Unlike a general-purpose UTM, it loads, measures and tests up to 12 specimens on its own, so the operator doesn't have to stand at the frame for every pull. Our universal testing machine for rubber buyer's guide on the LabsCubed blog compares both approaches. Which testing standards does the CubeOne support? Tensile testing to ASTM D412 and ISO 37, and tear testing to ASTM D624 (Die B and Die C), so the same machine covers your tensile and tear programs. What is the difference between ASTM D412 and ISO 37? Both evaluate the stress-strain behavior of vulcanized rubber and thermoplastic elastomers. ASTM D412 is the primary method in North America; ISO 37 follows a similar approach and is more widely used in Europe and other regions. They use different test speeds and specimen dimensions, but serve the same purpose. Choosing between them depends on whether your project or customer follows North American or international quality standards. Which specimen types can the CubeOne test? ASTM D412 Method A dumbbells — Die C, the most common elastomer die, and the smaller Die D — the ISO 37 Type 2 dumbbell, and the ASTM D624 Die C and Die B tear specimens. Method B ring specimens are not supported; Method A is the more commonly used method. What types of rubber can the CubeOne test? A wide range of elastomers tested at ambient temperature, including natural rubber (NR), SBR, EPDM, NBR, neoprene and silicone (VMQ), from custom compounds to production batches. Which properties does ASTM D412 report? Tensile strength, tensile stress at a given elongation (modulus), ultimate elongation, tensile set, and the full stress-strain curve. For highly elastic materials the test may not reach fracture, in which case the focus shifts to elongation and recovery characteristics. Does the CubeOne support all extensometer types? The CubeOne supports two of the three: a video extensometer for precise, non-contact strain measurement, and crosshead displacement. An automated physical extensometer is not available on the CubeOne. What test conditions need to be controlled? Temperature, humidity, and testing speed can all affect results and should be controlled. Specimen preparation matters too: dumbbells are typically die-cut from molded sheets or plaques, and should be cut so their length runs parallel to the extrusion grain direction. Is the CubeOne right for my lab's testing volume? The CubeOne is built for Lab Managers, Quality Directors and R&D Engineers at rubber compounders and processors with medium-to-high testing volumes — typically facilities running 50 or more rubber samples per day. What is the typical ROI for a CubeOne? Most customers achieve a full return on investment in 18–24 months, driven by recovering up to 85% of technician testing time and by reducing costly scrap and rework through eliminating operator-induced variability. How do I access and visualize my test data? Data is recorded instantly and can be reviewed on the machine's touchscreen or in the cloud-based LabsCubed Portal. Our software team integrates directly with your existing systems, including Alpha Workbench, Uncountable, SAP and other LIMS/ERP platforms. What is the difference between the CubeOne and the CubeTen? The CubeOne is built for rubber and elastomers, with up to 1 kN of force and optimized for high-elongation materials. The CubeTen is engineered for rigid plastics and high-strength materials, with up to 10 kN of force and support for adhesive tests like Single Lap Shear and T-Peel. Does the horizontal design affect accuracy compared to vertical UTMs? No. LabsCubed has 10 years of comparative test data showing that our horizontal orientation delivers results identical to traditional vertical machines. The design is what enables high-speed robotic loading, and each system is precision-calibrated so gravity and friction have no impact on load readings. What does installation and support look like? Installing the CubeOne is simple: its compact frame sits on a bench and plugs into a standard 110 V outlet. A LabsCubed specialist performs on-site installation, calibration to ASTM standards and team training, followed by prompt remote support and annual on-site calibration services. ## Ready to automate your rubber lab? Get a tailored CubeOne quote for your testing standards and daily volume. --- --- title: "Webinars — LabsCubed" description: "Live LabsCubed webinars on automated tensile testing, plus recordings of past sessions. Automation, data quality and Industry 4.0 for polymer and elastomer labs." url: https://labscubed.com/webinar --- Webinars # Live sessions and recordings Practical sessions on automated tensile testing — where manual work costs you time and consistency, and what automation changes. Join live to ask questions, or catch up on a recording. ## Upcoming Wednesday, November 18, 2026 11:00 AM EST · 50 minutes, including Q&A ### Automation, AI and Industry 4.0 in the Testing Lab Making a lab "smart" isn't one purchase. It's automating the repetitive work, producing data clean enough to be worth analysing, and connecting the two. Here is what that actually takes. Khaled Boqaileh · Co-founder & CEO, LabsCubed [Save my seat](https://labscubed.com/webinar/automation-ai-nov-2026) This session has aired — recording coming soon. ## Recordings Every webinar we run. Once a webinar has aired, it comes back as scheduled sessions you can book. Search Date [Automation, AI and Industry 4.0 in the Testing Lab Khaled Boqaileh · Wednesday, November 18, 2026](https://labscubed.com/webinar/automation-ai-nov-2026) Live session only Wednesday, November 18, 2026 ### Automation, AI and Industry 4.0 in the Testing Lab Making a lab "smart" isn't one purchase. It's automating the repetitive work, producing data clean enough to be worth analysing, and connecting the two. Here is what that actually takes. [Watch the replay →](https://labscubed.com/webinar/automation-ai-nov-2026) [Register for the live session →](https://labscubed.com/webinar/automation-ai-nov-2026) [View the webinar page →](https://labscubed.com/webinar/automation-ai-nov-2026) [![The Hidden Cost of Manual Plastics Testing — webinar replay with Khaled Boqaileh, in partnership with SPE](https://labscubed.com/assets/img/events/spe-replay-thumb-v3.webp)](https://labscubed.com/webinar/spe-oct-2026)Replay available Tuesday, October 20, 2026 ### The Hidden Cost of Manual Plastics Testing Measuring, positioning, gripping and processing every specimen by hand quietly consumes technician time and opens the door to variability. See where those costs hide — and what an automation-first workflow actually changes. [Watch the replay →](https://labscubed.com/webinar/spe-oct-2026) [Register for the live session →](https://labscubed.com/webinar/spe-oct-2026) [View the webinar page →](https://labscubed.com/webinar/spe-oct-2026) No sessions match that search. Try a different keyword or date. --- --- title: "Automation, AI and Industry 4.0 in the Testing Lab — LabsCubed Webinar" description: "Free webinar, Nov 18 2026, 11:00 AM EST. What it takes to make a testing lab smart: automate repetitive work, produce clean data, and connect the two." url: https://labscubed.com/webinar/automation-ai-nov-2026 --- --- --- title: "You're Registered — Automation, AI and Industry 4.0 in the Testing Lab" description: "You are registered for the LabsCubed webinar on Wednesday November 18 2026 at 11:00 AM EST." url: https://labscubed.com/webinar/automation-ai-nov-2026/thank-you --- --- --- title: "Replay: The Hidden Cost of Manual Plastics Testing | LabsCubed" description: "Watch the replay of our SPE webinar on the hidden costs of manual plastics tensile testing, and what an automation-first workflow with CubeTen changes." url: https://labscubed.com/webinar/spe-oct-2026 --- --- --- title: "You're Registered — The Hidden Cost of Manual Plastics Testing" description: "You are registered for the LabsCubed webinar on Tuesday October 20 2026 at 11:00 AM EST." url: https://labscubed.com/webinar/spe-oct-2026/thank-you --- --- --- title: "Automation vs. Manual Testing - Download Now | LabsCubed" description: "Download the free LabsCubed white paper on automated testing, a quantitative study on lab ROI. Access the data you need to slash costs, eliminate errors, and build the business case for automation." url: https://labscubed.com/white-paper-automation-vs-manual-testing --- ![LabsCubed automation white paper](https://labscubed.com/assets/img/media/white-paper-mockup.webp) White Paper # Beyond the bottleneck: a data-backed case for testing automation. Download your business case for automation — the definitive data on cost reduction and eliminating human error. ![LabsCubed automation white paper](https://labscubed.com/assets/img/media/white-paper-mockup.webp) ## What's inside the white paper. ### Quantified cost reduction Real ROI data comparing manual vs. automated tensile testing — labor hours, throughput, and cost-per-specimen. ### Eliminating human error How operator-dependent variability shows up in manual testing, and what automation removes from the equation. ### The business case, built for you The exact data points QA and Ops leaders use internally to justify the switch to automation. ## Powering the automated workflows of the industry's most advanced polymer and elastomer labs. ![Parker Hannifin](https://labscubed.com/assets/img/partners/parker-hannifin.webp)![Chevron Phillips Chemical](https://labscubed.com/assets/img/partners/chevron-phillips.webp)![Caterpillar](https://labscubed.com/assets/img/partners/caterpillar.svg)![Wacker](https://labscubed.com/assets/img/partners/wacker.svg)![HEXPOL](https://labscubed.com/assets/img/partners/hexpol.webp)![ACE Laboratories](https://labscubed.com/assets/img/partners/ace.webp)![Momentive](https://labscubed.com/assets/img/partners/momentive.webp)![Soucy](https://labscubed.com/assets/img/partners/soucy.webp)