Permaprene™ materials utilize Thermoplastic Vulcanizate (TPV) technology and are designed for use in technically challenging industrial, transportation, and durable goods applications. At the top of the performance spectrum are Permaprene™ 2800 B materials. Available in harndesses ranging from 45A to 50D, these materials exhibit superior chemical resistance, weatherability, temperature resistance, and compression set relative to other TPEs. Budget-friendly Permaprene™ 2840 B materials maintain the chemical resistance of TPV technology, and also provide excellent hand free and durability in applications where high temperature performance is not critical. Permaprene™ materials are stocked in both natural and black colors, and are overmold-bondable to polypropylene substrates.