ETP polymer. This peroxide cured compound is based on a tetrapolymer of Ethylene, Tetrafluoroethylene (TFE) and Perfluoromethylvinylether (PMVE), and a cure site monomer - 70-80 °IRHD.

This compound offers a higher level of fluid resistance than that of fluoroelastomers. It is not totally perfluorinated, so will not exhibit the ultra-low volume swell associated with Perlast® perfluoroelastomers. It is particularly suited to applications which have contact with strong amines, bases, steam and polar solvents. It improves on the chemical resistance of Aflas® and FKM elastomers, while retaining excellent low temperature performance.