The company tried several TPE grades, hoping to find a material that would eliminate the adhesion problem while providing comparable softness to silicone.

The two most popular grades of polyamide, also known as nylon, are type 6 and type 66 (sometimes seen as PA6 and PA66).

The Avient team assessed the application’s technical and operational requirements, and recommended a GLS™ Versalloy™ alloy in 45 Shore A durometer, an FDA-compliant medical TPV grade designed for overmolding onto PP.

The Avient team assessed the application’s technical and operational requirements, and recommended a GLS™ Versalloy™ alloy in 45 Shore A durometer, an FDA-compliant medical TPV grade designed for overmolding onto PP.

Figure 17 is a bar graph of mass loss for a variety of GLS™ TPE grades according to ASTM D3389. PART MODEL (GEOMETRY AND MESH) MATERIAL MODEL Steel hammer shaft Polymer hammer shaft Wood hammer shaft Figure 19: Material data Inputs * http://www.scielo.org.mx/pdf/remcf/v9n48/2007-1132-remcf-9-48-181-en.pdf ** https://www.westsystem.com/products/compare-epoxy-physical-properties/ http://www.scielo.org.mx/pdf/remcf/v9n48/2007-1132-remcf-9-48-181-en.pdf https://www.westsystem.com/products/compare-epoxy-physical-properties/ Ergonomic Grip Design Guide 19 After setting up the part and material models, the team determined applicable physics for the study.

Grades are available in black and natural with 30%–50% long glass fiber, with or without a flame retardant, allowing customers to customize performance requirements for structural applications. KEY CHARACTERISTICS • Chemical resistance • Maintaining high impact performance at low temperatures • Low moisture uptake • Dimensional stability comparable to nylon • Higher impact resistance than short fiber alternatives • Eco-conscious alternative to nylons • More cost-effective solution than specialty nylons • Available in non-PFAS* formulations to achieve UL 94 V-0 flame rating at 1.5 mm MARKETS & APPLICATIONS These materials are for use in applications traditionally made of metal requiring moisture, chemical and cold impact performance requirements, including: • Industrial – pipes, tubing, fluid management • Electrical & Electronics – connectors, battery components, battery housings • Transportation – under-the-hood fuel/ chemical contact components, non-structural interior components • Oil & Gas – fuel pump components, fuel doors PRODUCT BULLETIN * Non-PFAS flame-retardant (FR) grades are manufactured without intentionally added PFAS-based raw materials.

Measurements for PREPERM L260 grade dielectric properties performed at VTT Technical Research Centre of Finland Ltd and they reflect the typical dielectric properties of PREPERM range. ILLUSTRATION OF STABLE DIELECTRIC PROPERTIES AS A FUNCTION OF FREQUENCY Di el ec tr ic co ns ta nt PREPERM™ Radome PREPERM™ High-temp PREPERM™ Flexible PREPERM™ Standard Grades for reflow soldering, temperature resistance for films and cables for ceramic replacement 2 7 12 17 22 1.844.4AVIENT www.avient.com

TPEs are compatible with most municipal recycle streams and special grades can be formulated with renewable content. GENERAL PURPOSE GLS TPES FOR PACKAGING SOFT TOUCH GRIPS BONDING TO POLAR SUBSTRATES GENERAL PURPOSE GLS TPES FOR PACKAGING SOFT TOUCH GRIPS BONDING TO NON POLAR SUBSTRATES Dynaflex™ G2711 Dynaflex™ G2780 Dynaflex™ G6713 Dynaflex™ G7960 Versalloy™ XL9045 Versaflex™ CL40 Aesthetics Grippy, 43A Low tack, 84A Extra soft, 13A Rubbery, 60A & opaque Matte, 45A & natural Grippy, 40A & water clear Special Characteristics Grippy medical grade PP & PE OM Extra soft General purpose High flow & fast setup Water clear Regulatory FDA, EU & USP VI FDA FDA & EU FDA FDA FDA & EU Overmolding Polypropylene Polypropylene & Polyethylene Polypropylene Polypropylene Polypropylene Polypropylene Versaflex™ CL 2250 Versaflex™ OM 3060 Versaflex™ CE 3120-65 Versaflex™ CE 3620 Versollan™ RU 2205 Aesthetics Grippy, 50A & clear Grippy, 59A & clear Silky feel, 65A Silky feel, 65A Grippy, 65A Special Characteristics Clear overmold Clear overmold Abrasion resistance & high strength Low compression set & high flow Abrasion resistance & high strength Regulatory FDA & USP VI FDA & USP VI UL 94 FDA & ISO 10993-10 — Overmolding Polycarbonate Polycarbonate & ABS Polycarbonate, ABS, Copolyester & Nylon 12 Polycarbonate, ABS, Copolyester & Nylon 12 1.844.4AVIENT www.avient.com Copyright © 2020, Avient Corporation.

Designed for two- shot injection molding and formulated for the appropriate substrate, these medical-grade TPEs are compatible with rigid PVC, copolyesters, all PC alloys, ABS, TPUs and PEI substrates. Versaflex HC grades provide: • Resistance to common disinfectants • Excellent bonding to Trilliant HC materials and other engineering thermoplastics • Customization to achieve desired haptics and color branding A BINDING CONNECTION With Avient, you can redesign your medical enclosure substrate and improve the ergonomics, comfort and ease of use with overmolded TPEs.

Additives and Colorants for PP-R and PP-RCT Pipe Systems Polypropylene-random grades (PP-R and PP- RCT) are increasingly used for hot and cold water supply pipe systems in civil and public buildings. Avient also offers additive and color concentrates for other polymer grades and pipe system applications.