FKM Viton O-Rings
What is FKM?
Fluroelastomer or FKM is a class of synthetic rubber designed for very high
temperature operation. FKM provides extraordinary levels of resistance to
chemicals, heat and oil, while providing useful service life above 200°C.
FKM are not a single entity but a family of fluoropolymer rubbers.
Fluoroelastomers or FKM (sometimes also referred to as FKM Viton) can be classified by their fluorine content, 66%,
68%, & 70% respectively. This means that FKM rubber having higher
fluorine content, have increasing fluids resistance derived from increasing
Viton® is a registered trademark for fluroelastomer by
DuPont Performance Elastomers L.L.C. This fluoroelastomer- FKM Viton- was introduced in
1957 to meet the requirements in the aerospace industry for a
high-performance elastomer. The use of Viton® has spread quickly to many
other industries, including the automotive, appliance and chemical
industries, fluid power. Viton® is the most specified fluoroelastomer,
well known for its excellent heat resistance, excellent resistance to
aggressive fuels and chemicals. This popular FKM Viton fluroelastomer has worldwide
ISO 9000 and ISO/TS 16949 registration.
To get a better idea on Fluroelastomers, check out our articles
FFKM Performance and Application
We cater to wholesale supply of Fluoroelastomers
FKM) Viton through our vast directory of FKM rubber manufacturers and fluoroelastomers rubber suppliers. For bulk requirement of Fluoroelastomers rubber, FKM rubber,
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Properties of Fluoroelastomers (FKM)
- Fluoroelastomers have excellent resistance to chemical attack by
oxidation, by acids and by fuels.
- They also have good oil resistance.
- They have limited resistance to steam, methanol, hot water, and other
highly polar fluids.
- The outstanding heat stability and excellent oil resistance are due
to the high ratio of fluorine to hydrogen, the strength of the
carbon-fluorine bond, and the absence of unsaturation.
- The latest FKM polymers have a much broader fluids resistance profile
than standard fluoroelastomers.
- They are able to withstand strong bases and ketones as well as
aromatic hydrocarbons, oils, acids, and steam.
- Peroxide cured fluoroelastomers have inherently better water, steam,
and acid resistance.
FKM provides premium, long-term reliability even
in harsh environments. A list of its applications is given below:
- Aerospace: O-ring seals in fuels, lubricants, Valve
stem seals, Fuel hoses, Fuel Injector O-rings, In tank and quick
connect, Flue duct exp. Joints, Valve liners, Roll covers, Sheet
stock/cut gaskets etc.
- Automotive: Shaft seals, Check valve balls,
Diaphragms, Military flare binders, Electrical connectors, Tire valve
stem seals, Clips for jet engines, Lathe cut gaskets etc.
- Industrial: Hydraulic o-ring seals and hydraulic
systems, Manifold gaskets, Fuel tank bladders, Firewall seals, Engine
lube siphon hose fuel system seals, Gaskets (valve & manifold) etc.
FKM is of high value in use as a class of synthetic rubber which provides
extraordinary levels of resistance to chemicals, oil and heat. This type of
rubber can be fabricated into seals, o-rings, and hoses for a variety of
high performance applications in the automotive, aerospace, and
Other Types of Synthetic Rubber