Fluorine rubber (FKM/FPM) is a well-known high-performance rubber polymerized from highly fluorinated hydrocarbons. Fluorocarbons (FPM, FKM, Viton™) Fluorocarbons are a type of high-performance rubber that is well known for its excellent resistance to high temperatures, ozone, climate, oxygen, mineral oils, fuel oils, hydraulic fluids, aromatic hydrocarbons, and many organic solvents and chemicals.