https://www.avient.com/sites/default/files/2020-08/tpes-for-automotive-industry-bulletin.pdf
Known for offering tight seals and reducing vibration and noise, certain thermoplastic elastomers (TPEs), like OnFlex™ grades, may be better suited for your particular application than the historically incumbent materials, like general purpose TPEs, thermoplastic vulcanizates (TPV), and thermoplastic polyolefins (TPO).
INDUSTRY BULLETIN STANDARD UNITS ONFLEX LO 7120-45N Volatile Organic Compounds VDA 278 ug/g(ppm) 41 Fogging VDA 278 ug/g(ppm) 521 Odor • Control • Dry conditions • Wet conditions SAE J1351 (15) 1-10 Scale 1 2 1 Compression Set (23°C) • 22 hours • 70 hours ASTM D395 % 14.4 14.6 Capillary Viscosity • 1341/s • 11170/s ASTM D3835 Pa*s 35 7 HVAC SYSTEMS OnFlex™ LO • Features: low VOC/FOG, low odor, good compression set, easy processing, overmolds to polypropylene • Example applications: seals and flaps in heating, ventilation and air conditioning systems CHARACTERISTICS ONFLEX™ LO ONFLEX™ AF TPE GENERAL PURPOSE TPV TPO Volatile Organic Compounds (VDA 278) Very Low Moderate Moderate Moderate Very Low Fogging (VDA 278 & DIN 75201) Very Low Moderate Moderate High Very Low Odor (VDA 270 Requirement ≤3.0) ≤3.0 ≤3.0 >3 >3 ≤3.0 Gloss Level Low Low Low Very Low High Tactile Feel Grippy Grippy Grippy Grippy Waxy Pre-Drying Required No No No Yes No Raw Material Costs $$ $$ $$ $$$ $ Compression Set @ RT Good Good Good Excellent N/A Compression Set @ ≥70°C Moderate Moderate Moderate Good N/A UV Resistance Good Excellent Good Good Good Weatherability Good Excellent Good Good Good Hardness Range Low to High Low to High Low to High Low to High High Density (g/ml) 1.15 0.99 0.90–1.20 0.95–0.98 0.90–1.20 GENERAL CHARACTERISTICS COMPARING TPE, TPV, TPO Grades shown on both pages are representative of solutions manufactured in North America, more grades available globally.
https://www.avient.com/sites/default/files/2023-06/AVIENT_TPEs and LSR eBook.pdf
™ TPEs vs.
One caveat: Typical TPE shrinkage is around 2% while that of substrate materials is closer to 1%.
When looking to incorporate sustainable content into your TPE, the raw material cost may be more expensive than traditional materials for three reasons 1) supply chain maturity, 2) high demand, low supply, 3) location of source and supplier.
https://www.avient.com/sites/default/files/2023-12/Versaflex OM TPEs for Sealing Ring of Blood Lancet.pdf
BLOOD LANCET MANUFACTURER S E A L I N G R I N G • Compliance with strict regulations for medical materials • Excellent sealing performance • Good compression set • Provided a recycled TPE solutions compared to silicone without increasing system cost • Delivered a TPE that complied with ISO 10993-4 & -5 and USP Class VI • Supported a change to an injection molded material to ease production and enhance assembly capabilities Versaflex™ HC TPEs – OM1040-1 Grade KEY REQUIREMENTS WHY AVIENT?
https://www.avient.com/sites/default/files/2024-07/TPE Whitepaper_0.pdf
Specifically, here are five ways TPEs can help the healthcare industry meet an anticipated capacity crunch: 1.
Parts Cost Surplus Stock Carbon Footprint Power Consumption Production Time TPE Benefits TPEs can reduce: TPE Applications TPEs can used to produce: Better grips on instruments Easy branding Easy-to-open pill bottles Needs to Meet Future Growth 2010 TPE Substrate 2030 Future Demand 2050 Supply Chain Capacity TPE Substrate Parts Cost Surplus Stock Carbon Footprint Power Consumption Production Time TPE Benefits TPEs can reduce: TPE Applications TPEs can used to produce: Better grips on instruments Easy branding Easy-to-open pill bottles Needs to Meet Future Growth 2010 TPE Substrate 2030 Future Demand 2050 Supply Chain Capacity TPE Substrate 3© 2020 Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 3.
CONCLUSION: HOW CAN TPEs HELP YOU?
https://www.avient.com/sites/default/files/2021-03/wet-grip-tpe-surfco-case-study.pdf
WET GRIP TECHNOLOGY PROVIDES POWERFUL SOLUTION FOR SURFCO HAWAII © 2021, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 1 Wax Mat® is a trademark of SurfCo Hawaii, Inc.
To learn more about our wet grip TPEs, contact Avient at +1.844.4AVIENT (1.844.428.4368) or visit avient.com.
THE IMPACT The launch of the Wax Mat®1 grip tape introduced a fresh alternative to wax for wet grip to surfboard decks, helping to further differentiate SurfCo.
https://www.avient.com/sites/default/files/2023-11/reSound BIO TPEs Technical Bulletin.pdf
TECHNICAL BULLETIN reSound™ BIO Thermoplastic Elastomers Customizable Bio-based TPEs reSound™ BIO TPEs are formulated utilizing between 35 and 60 percent bio-renewable content.
Initially available in overmolding grades compatible with PP, all grades are formulated to achieve comparable performance to traditional TPEs.
This expertise enables brands to meet sustainability goals while maintaining the mechanical properties of traditional TPEs.
https://www.avient.com/sites/default/files/resources/NOVEL_THERMOPLASTIC_ELASTOMERS_FOR_UNIVERSAL_OVERMOLDING_ON_DISSIMILAR_THERMOPLASTICS.pdf
TPE-1 and TPE-2 have a hardness of 45 and 50-55 Shore A, respectively.
Results and Discussion TPE-1 TPE-1 is a translucent material of 45 Shore A.
Figure 3 shows the capillary viscosity of TPE-1 and TPE-2 at 200oC.
https://www.avient.com/sites/default/files/2020-07/gls-tpe-bayer-cap-english.pdf
GLS TPE - Bayer Cap - English BAYER® T P E O V E R M O L D E D C A P • Easy to grip and open • Design requirements: • Raised logo • Specific brand color • Optimize retail shelf space/reduce packaging • Improved packaging functionality for both user (ergonomic design) and on shelf (better stacking and reduced packaging) • Offered value-add formulation that allowed customer to extend brand differentiation in the market GLS™ Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?
https://www.avient.com/knowledge-base/article/processing-styrenic-block-copolymer-tpes-gls?rtype[]=1164
TPE Technical Bulletins
Due to this unique viscosity/shear rate dependency, normal melt index testing (done at shear rates as low as 50 1/sec) will not reflect how the TPE will process at higher shear rates.
Shear rates during extrusion processing are usually in the hundreds of reciprocal seconds and shear rates during injection molding may go as high as 11,000 1/sec.
https://www.avient.com/knowledge-base/article/processing-styrenic-block-copolymer-tpes-gls
TPE Technical Bulletins
Due to this unique viscosity/shear rate dependency, normal melt index testing (done at shear rates as low as 50 1/sec) will not reflect how the TPE will process at higher shear rates.
Shear rates during extrusion processing are usually in the hundreds of reciprocal seconds and shear rates during injection molding may go as high as 11,000 1/sec.