Gumlast is 100% pure perfluoroelastomer and made from the very same backbone polymer as the major brands are made from. Gumlast has been tested and benchmarked against leading FFKM brands and showed superb properties when exposed to harsh environments. Utilizing the latest cross-linking and reinforcement techniques, multiple grades have been formulated to optimize the performance of the molded parts in many different applications. Gumlast parts are manufactured in state of the art, highly modernized & ISO certified production lines with very high line yield.