TECHNICAL BULLETIN reSound™ BIO Thermoplastic Elastomers Customizable Bio-based TPEs reSound™ BIO TPEs are formulated utilizing between 35 and 60 percent bio-renewable content.

Using phase barriers made of Avient’s OnFlex™ S HF, HF 7001, and Synprene or Synprene™ RT thermoplastic elastomers (TPEs) will help you deliver on that promise.

Brand owners, recyclers, and convertors require high-performance and cost-effective solutions that can make recycling easier, allowing them to continue using greater quantities of PCR.

T-Spray™ (quaternary ammonium) CavidCide® (Isopropanol) Cidex Plus® (Glutaraldehyde) Acceptable 90–100% Resilience HC Resilience HC Resilience HC Marginal 50–90% Poor

BOTTLE COMPOSITION L* a* b* 95.91% Virgin PET/0.09% Fortis Amber-1/4% SolO2-2 76.9 3.6 39.5 50% Regrind/50% Virgin PET 83.5 2.8 19.5 50% Regrind/50% Virgin PET/0.045% Fortis Amber-1 75.6 5.5 34.5 RESULTS FOR RE-GRIND COMBINATION STUDY CONCLUSIONS Our study has shown that the combined use of Amosorb SolO2-2 and Fortis-Amber 1 in bottle applications allows for the material to be recycled through multiple recycle loops.

CHAPTER 1 | APPLICATION SUMMARY Design Guide 5 GT5200-0013 GT6000-0004 GT7300-0006 GT5200-5003 GT6000-5002 GT7300-5007 Specific Gravity* 2.0 3.0 2.0 2.5 2.6 2.2 Color Options* Various Various Black to Grey Black Various Various Electroplating No Possibly Yes Possibly Possibly Yes Base Resin PP PA6 ABS PP PA6 ABS FDA Compliant* Yes Yes Yes Yes No Yes Region Produced North America North America North America Europe Europe Europe Full Name X GT5200-0013 PT White X GT6000-0004 PT White X GT7300-0006 PT Black GT7300-5003 Black FD GT6000-5002 EI White 1 GT7300-5007 X2 White FD *Please contact Avient for additional information 6 Gravi-Tech CHAPTER 2 | PROCESS SETTINGS Density Modified Formulations Gravi-Tech™ polymer-metal composites are high-density materials developed as thermoplastic- based alternatives to metals. These materials have been formulated using select metallic fillers and engineered thermoplastic resins to have densities similar to actual metals, while also providing the design flexibility and processing ease of conventional thermoplastics. Design Guide 37 Hot spots Improper cooling Venting plugged Barrel too hot Too hot Melt temperature Reduced transfer Check venting Add a flow leader Insure cushion position Insure proper screw recov- ery Add a foaming agent Increase hold pressure Reduce melt Reduce mold Increase mold Sink Root cause: Material is shrinking away from mold surface. 38 Gravi-Tech Condensation Wrong screw configuration Injection speed too fast Residence time too long Excessive Check mold surface for condensation Check for condensation in feed throat Check dry material dew point Increase mold Reduce melt Reduce screw speed Reduce decompression Splay • Silver streaks on part Root cause: Material degradation Design Guide 39 Venting impaired Leaking check ring Heating band burned out Melt temperature Transfer position too high Clean mold surface Check vents Increase melt Increase mold Increase back pressure Decrease transfer Surface Finish Root cause: Material is not reproducing the mold surface finish. 40 Gravi-Tech Tooling damage Heater band overriding Leaking check ring Melt temperature Pack pressure too high Hold time too low Reduce gate size Increase cooling in gate area Check gate for blockage Check thermocouples for continuity Ensure cushion is maintained Dry material Reduce melt Reduce tip temperature Gate Vestige Root cause: Material doesn’t have a clean break at gate.

products include specialty engineered materials, advanced composites, color and additive systems and polymer distribution.

products include specialty engineered materials, advanced composites, color and additive systems and polymer distribution.

The sale of Products or the providing of samples or developmental material shall not, by implication or otherwise, convey any license under any intellectual property right relating to the compositions and/or applications of the Products, sample, or developmental material, as applicable. The expiration or termination of this Term shall not affect such of the provisions of these Terms which are expressly provided to operate after any such expiration or termination, or which of necessity must continue to have effect after such expiration or termination, notwithstanding that the relevant provisions themselves do not provide for this. 27.

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.