Durable TPE Technology

OnFlex™ Thermoplastic Elastomers

Built to Last

Dedicated to a variety of demanding applications in transportation (automotive), building and construction, and industrial markets, OnFlex™ thermoplastic elastomers are formulated for durability. With excellent mechanical properties, these TPEs offer UV resistance, low compression set, flame retardance, and weatherability. Built to last, they withstand chemicals, high temperatures, and abrasion over time. Notably, grades specified for automotive interiors meet Vehicle Interior Air Quality (VIAQ) standards with their low VOC / FOG and odor properties.

Connect with a Product Expert

VOC Reduction


  • Low VOC / FOG / odor for automotive interiors
  • Resists high heat and chemicals
  • Lasts over time with UV and abrasion resistance
  • Dedicated overmolding grades for various engineering plastics
  • Uncompromised surface finish
  • Low tack
  • Flame retardant



Marketing + Technical Info

Browse and download our literature to learn more about Avient solutions and services.


Safety Data Sheets

Important information about the health, safety and environmental impacts of Avient products.


Technical Data Sheets

Browse our library of product data sheets containing technical descriptions and details.


Technical Literature

Technical information, design guides, processing information and more.

OnFlex™ Solutions
Product Series Applications Description/Product Features
OnFlex™ AF Series Automotive exteriors Thermoplastic elastomers featuring excellent UV resistance and weatherability, long-term sealing performance, reduced noise and vibration, grippy feel, low gloss, low odor.
OnFlex™ LO Series Automotive interiors Low odor formulations that reduce volatile organic compounds (VOCs) and fogging for optimal performance in automotive interiors.
OnFlex™ HT Series Automotive interiors Formulated for high temperature applications and delivering long-term sealing performance.
OnFlex™ G Series General purpose Specialty TPEs formulated for a multitude of uses, suitable for both injection molding and extrusion, overmolds to PP.
OnFlex™ S, OnFlex™ S KE and OnFlex™ S KA Series, OnFlex™ KC Automotive, consumer goods Superior UV and scratch resistant TPE that meet VIAQ standard, suitable for PC and ABS OM applications. OnFlex™ S KA suitable for PA OM.
OnFlex™ S HF Series Electrical and electronic, construction, and automotive  Halogen free, flame retardant TPEs formulated to provide good flexibility, lower moisture absorption, good insulation, and RoHS compliance.
Automotive Cup Holder Mat Case Study (Snapshot) OnFlex™ AF TPE delivered global solution for a cup holder mat with excellent low VOC/FOG properties and high-quality, low gloss surface finish View
Automotive HVAC Flap (English) Case Study (Snapshot) OnFlex™ LO meets VIAQ standards for low VOC/FOG and reduced processing time (English language version) View
Automotive HVAC Flap (Spanish) Case Study (Snapshot) OnFlex™ LO meets VIAQ standards for low VOC/FOG and reduced processing time (Spanish language version) View
Automotive Interior Tray Meets VIAQ Standards Case Study (Snapshot) OnFlex™ S meets VIAQ standards for low VOC/FOG plus easy processing View
Automotive Interior Tray Meets VIAQ Standards (Spanish) Case Study (Snapshot) OnFlex™ S meets VIAQ standards for low VOC/FOG plus easy processing (Spanish Version) View
Automotive Outside Rear-View Mirror Gasket Case Study (Snapshot) Custom Thermoplastic Elastomer provides UV resistance and processability for automotive outside rear-view mirror gasket View
Cell Pack Cooling Tube Case Study (Snapshot) Provided excellent chemical resistance and sealing for cell pack cooling tube View
Electrical Junction Boxes Case Study OnFlex™ S HF TPEs provide non-halogen solution for electrical junction box View
Engineered Polymer Formulations for Firearm Components Product Selection Guide Overview of technologies, characteristics, and applications. View
Garden Sprayer Grip - Case Study Case Study OnFlex-S™ used for overmolding handgrips onto ABS resin View
Global Presence and UV Resistance for Oscillating Sprinkler Case Study (Snapshot) OnFlex™ S KE provides superior UV resistance and global presence for oscillating sprinkler View
GLS™ TPE Automotive Solutions Improve Vehicle Air Quality with TPEs for Automotive HVAC Flaps - Product Bulletin Product/Service Overview Improve vehicle air quality with TPEs for automotive HVAC flaps View
GLS™ TPEs - Injection Molding Guide Processing & Design Guides Guide to part design, mold design, hot runner systems, overmolding, machine selection, material handling and preparation, processing conditions and troubleshooting for GLS™ solutions View
GLS™ TPEs - Overmolding Guide Processing & Design Guides Guide to overmolding material selection, part and mold design, material handling and preparation, TPE injection molding, processing, maximizing adhesion and troubleshooting for GLS™ TPEs View
GLS™ TPEs for Automotive Fasteners and Clips - Product Bulletin Product/Service Overview Enable long-term performance with GLS™ TPEs for automotive fasteners and clips View
Microbial susceptibility of various polymers and evaluation of thermoplastic elastomers with antimicrobial additives White Paper Examine the technical details of our research study to test against microbial attack, including the efficacy of GLS™ TPES with antimicrobial additives View
OnFlex™ Thermoplastic Elastomers - Industry Bulletin Industry Overview Delivering thermoplastic elastomer solutions for automotive applications. View
Panels for Off-Road Vehicles Case Study (Snapshot) Ten engineered material and Masterbatch solutions provided global service improvements for panels on off-road vehicles View
Power Tool Handle Case Study (Snapshot) OnFlex™ S KE Series provides scratch resistance and colorability for power tool handle  View
Snowmobile OEM Snow Flap Case Study (Snapshot) Read how the combined value of a specialty TPE and technical support met processing and performance demands View
Thermoplastic Elastomers Product Selection Guide - North America Portfolio Product Selection Guide Explore our product guide for innovative TPE solutions for thousands of applications View
TPEs for Molded Case Circuit Breaker Phase Barrier Application Overview Reduce possibility of molded case circuit breaker failure with TPE phase barriers View
Vehicle HVAC System Colorants & Additives Case Study (Snapshot) Seven SmartBatch (color + effect additive) solutions combined to improve vehicle interior air quality (VAIC) View