Overmolding TPE compounds have a relatively low viscosity. ADHESION MEASUREMENT OF THE OVERMOLD TPE The bond strength between the TPE and the engineering plastic can be measured by performing a “90° Peel Test”. NOVEL TPE DEVELOPMENTS: Non-Drying TPEs for PC, ABS, PBT and their alloys Novel classes of non-drying TPEs which can overmold onto a variety of engineering thermoplastics have been developed.

Match the chemistry of the TPE to the substrate for optimized bonding 2 . Ensure the TPE layer is thick enough to ensure good bonding . Use an appropriate gate size depending on the type and thickness of TPE .

However, the original TPE that the company selected caused issues during 2K molding. THE SOLUTION Avient was asked to suggest a suitable TPE for this application. For this manufacturer, another appealing aspect of working with this material was Avient’s dedicated TPE production line in Spain, which is used solely to manufacture TPEs for overmolding applications.

SNOWMOBILE OEM S N O W F L A P • Cold temperature flexibility and toughness • UV stability • Easily injection moldable • Offered a specialty TPE capable of performing well in demanding environments • Delivered a technology that supported a nearly 2-foot flow length for easy processing • Generated .udb file to help accelerate new designs • Collaborated with the molder and OEM for seamless product development and production OnFlex™ Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

CASE STUDY: VERSAFLEX™ OM TPES THE CHALLENGE Millions of people of all ages play video games. THE SOLUTION While researching other possibilities online, the company found Avient and requested additional information on its thermoplastic elastomers (TPEs). Additionally, compared to silicone rubber, the TPE is easier and faster to process, as it requires no pre-mixing, curing or adhesives.

BROOKS R U N N I N G S H O E • Exceed current material performance • Optimal cushioning • Fast reaction time • Both energy absorption and return • Provided a 30-50% improvement in cushioning over traditional material • Simplified manufacturing from four-steps to a single injection molding process, yielding a 30-40% reduction in energy usage • Increased sales by up to 40% compared with the previous model Customized TPE Material KEY REQUIREMENTS WHY AVIENT?

GLS™ TPE PACKAGING SOLUTIONS CHEMICAL RESISTANT SOLUTIONS FOR COSMETIC, PERSONAL CARE AND HOUSEHOLD PACKAGING We’ve developed a line of chemical resistant thermoplastic elastomers (TPEs) that do not discolor, etch, crack or delaminate. And, because TPEs can be overmolded, brand owners and packaging manufacturers have new options for designing components that can be integrated directly into the package. Our FDA and REACH compliant Versaflex™ PKG TPEs provide options for designing aesthetically pleasing packaging components that withstand aggressive chemicals

Versaflex™ HC and Versaflex™ HC BIO Thermoplastic Elastomers TPEs for Biopharmaceutical Tubing (BT) The Versaflex™ HC and Versaflex™ HC BIO BT series is formulated specifically to handle the complexities of biopharma tubing. Delivering on critical application demands, it provides weldability, kink resistance, and tensile strength performance comparable to leading medical tubing materials, including silicone and TPE. Offering reliable performance, optical clarity and expanded design freedom, these medical- grade TPEs may be customized to meet specific regulatory demands or application needs.

reSound™ OM Thermoplastic Elastomers Bio-based TPEs Deliver on Performance Designed to support sustainability goals, the reSound OM TPE formulations utilize between 40 and 50 percent bio-renewable content derived from sugarcane and offer hardness levels and property retention comparable to traditional petroleum-based TPEs. Available in four overmolding grades compatible with polypropylene (PP), and one grade that is suited for overmolding onto ABS, all grades are formulated for durability, delivering property retention and UV resistance comparable to traditional TPEs. TECHNICAL BULLETIN UV RESISTANCE • UV testing: QUV-A Test, 0.68 @ 45C • Comparable results to traditional TPEs reSound OM 5510-45N reSound OM 5510-60N Bio-derived Content (%) 40% 50% Hardness, Shore A 45 60 Delta E after 150 hrs. 0.22 0.23 Delta E after 300 hrs. 1.68 0.56 AGING – BONDING STRENGTH ONTO ABS reSound OM 5520-55N Room Temperature 70C 1 day 1 week 2 weeks 6 months 1 week 2 weeks 3 weeks Bio-derived Content (%) 49% 49% 49% 49% 49% 49% 49% Hardness, Shore A 54 54 55 54 55 56 OM Substrate ABS ABS ABS ABS ABS ABS ABS OM Avg.

PHONE CASE MANUFACTURER P H O N E C A S E • Formulated TPE with 43% bio-based content plus favorable UV resistance and vibration damping performance compared to standard TPE • Received radiocarbon (C14) international certificate for bio-based content • Provided excellent bonding ability with good aesthetics • Matched design specs with an easily colored material using traditional TPE colorants reSoundTM OM TPEs WHY AVIENT? Suitable for overmolding onto PC and TPU • Contains bio-renewable content • Vibration damping performance and UV resistance comparable to traditional TPEs KEY REQUIREMENTS https://www.avient.com/products/thermoplastic-elastomers/resound-om-thermoplastic-elastomers