FKM is a copolymer made of highly fluorinated hydrocarbons, developed in the 1950s. FKM seals exhibit very good resistance to media, ozone and aging. The material is also stable in fuels, petroleum-based oils, and greases, as well as aliphatic and aromatic hydrocarbons.
Fluorine rubber (FKM) is a well-known high-performance rubber that is a copolymer composed of highly fluorinated hydrocarbons. It has excellent resistance to high temperature, fuel, hydraulic oil, ozone, media and aging. However, it is unstable to polar solvents such as MEK, acetone, ethyl acetate, etc. Oil seals made of FKM generally refer to fluorocarbon compounds with 66% fluorine content. Fluoroelastomers are used in the temperature range from -25 °C to 200 °C and are mainly used as seals in the automotive and commercial vehicle industries as well as in oil production and in the chemical and aerospace sectors. Special types of FKM are flexible even at -40 °C. In the general industry, FKM is used anywhere with high speeds and high temperatures, for example in radial shaft sealing rings in pumps and gearboxes.
● Excellent resistance to most oils and media
● High resistance to hydrocarbons and chlorinated hydrocarbons
● Excellent heat resistance at 250°C
● Resistant to acids (inorganic acids)
● Poor hot stretching and tearing properties
● High compression in hot water
● Not suitable for polar solvents
● Poor ductility, poor cold resistance
FKM seals exhibit very good resistance to media, ozone and aging.
FKM is a well known high performance rubber that is a copolymer of highly fluorinated hydrocarbons.
They are used to seal rotating or revolving machine elements (mainly shafts).
FKM is a copolymer made of highly fluorinated hydrocarbons and was developed in the 1950s.
FKM oil seal is a high performance elastomer that provides high performance sealing solutions. It is considered to be the most durable rubber oil seal on the market.
FKM has broad chemical resistance, making it ideal for most applications containing oils, fuels and inorganic acids.
With a service temperature range of -25 °C to 200 °C, fluoroelastomers are primarily used in seals for the automotive and commercial vehicle industries as well as in oil production and in chemical and aerospace applications.
FKM can operate at temperatures from -25 °C to 200 °C for long periods of time. Transient temperatures of up to 250 °C are possible, but the life of the rubber is reduced.
