|
Fluoro Elastomer rubber (FKM)
or Viton is based on hexafluoropropylene
vinylidene fluoride.The polymer has high
resistance to heat with a temperature range
of -40° C to + 250° C. It has also possesses
a good flame resistance and is usually self
extinguishing. FKM’s have excellent
resistance to oxygen, ozone and natural
weathering and also have outstanding
resistance to compression, especially at
elevated temperatures. Its resistance to
most solvents and chemicals give long
service life as it has excellent resistance
against hydrocarbons, aliphatic, aromatic
and chlorinated chemicals and resistance to
acids and alkalis including oxidants.
However, they have poor performance against
ethers, ketones and bases. |