Fluoroelastomer FKM copolymer Gum-26 series are the copolymer of vinylidenefluoride and hexafluoropropylene, whose fluorine content is over 66%. After valcanizing process, the products have excellent mechanical performance, outstanding antioil property(fuels, synthetic oils, lubricating oils) and heat resistance, which can be used in the fields of modern aviation, rocket, missile, space flight, etc.
Fluoroelastomer FKM copolymer Gum-246 series are the copolymer of vinylidenefluoride, tetrafluoroethylene, and hexafluoropropylene. Because of its high fluorine content, its vulcanized rubber has excellent anti oil property and high thermal stability. It also has good mechanical property and can be used in 275℃ for a long time, in 320℃ for a short time. The property of anti oil and anti acid is better than FKM-26, resistance of FKM246 to oil, ozone, radiation , electricity and flamer is similar with FKM26.