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APS Elastomers has released Viprene thermoplastic vulcanizate, which is formulated with polypropylene and is a crosslinked EPDM.
The Viprene TPV exhibits many properties similar to rubber, with flexibility over a wide temperature range and resistance to degradation from water, oil and grease. Additionally, APS said Viprene TPV has a high compression set and exhibits good flow characteristics and can be co-extruded or injection molded to a variety of substrates. These qualities make them an ideal material for architectural gaskets and insulation seals used in window profiles, APS said.
UV resistant and heat stabilized with a brittleness temperature value of -76⁰ F, APS claimed Viprene TPVs can be optimized with specific softness needed in industrial and construction applications. APS said Viprene TPVs are available in natural or black pellets in a Shore hardness range of 35 Shore A to 50 Shore D. Applications include, but are not limited to, gaskets, O-rings, door and window seals, power steering, brake and fuel hoses, electrical insulation, construction and industrial parts.