Ge Mao Rubber Industrial Co., Ltd is a manufacturer and supplier of FKM
O-Rings since 1981
FKM o-rings and sealing gaskets are made of fluorocarbon elastomers and are
extensive used over a wide span of industries. The characteristics of FKM
o-rings and seals made them highly desirable in many applications. Chemical
resistance and temperature range, with a low compression set and durability
have made fluorocarbon elastomers a highly sought after compound for a wide
range of applications.
Unlike nitrile compounds, fluorocarbon elastomers which are termed
fluorinated carbon-based polymers, have the capability to withstand ozone
exposure. The temperature range where FKM o-rings and seals are suitable for
their use is between -26 degrees Celsius to +230 degrees Celsius. Continuing
research and development produced series of the material that have enhanced
chemical resistance. The desire to have high chemical resistance and low
temperature characteristics are unfortunately at opposite ends of the
spectrum, with an increase in fluorine content giving rise to enhanced
chemical resistance but with a correspondingly reduction in tolerance at low
temperature. Research has produced specialty grades of fluorocarbon
elastomers where the best of both characteristics can be exploited.
The use of FKM o-rings and seals can be found in the aerospace industry and
the automotive industry, and in applications where seals are expected to
come into contact with aggressive chemical media at elevated temperatures.
FKM, FPM or Viton, are resistant to many chemical media including silicone
oil and greases, aromatics, fuel oils, petrol, mineral oils and more.
Charts for o-rings (Metric and Standard) available at www.oringsizes.com
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