FKM 1 - Fluoroelastomer copolymer
Clwyd reference | FKM 1 |
ASTM classification | FKM 1 |
Dipolymer (or copolymer) of hexafluoropropylene (HFP) and vinylidene fluoride (VF2/VDF). Copolymers are the standard type of FKMs showing a good all round performance in both chemicals and heat The fluorine content typically is 66 weight percent. | |
Typical applications | |
Advantages | |
Disadvantages | |
Available hardness range (Shore A) | 50 - 95 |
Upper continuous service temp. | 240°C |
Min. temp. for sealing applications | -15°C |
Minimum non-brittle temp. | -20°C |
Tensile strength (up to) | 20 MPa |
Elongation at break (up to) | 300% |
Price Bracket | Low |
ASTM 1 Oil | Excellent |
ASTM 2 Oil | Excellent |
ASTM 3 Oil | Excellent |
Kerosene | Excellent |
Liquid B | Excellent |
Liquid 101 | Excellent |
Phosphate ester | None |
Ketone | None |
Toluene | Excellent |
Iso-octane | Excellent |
Methanol | None |
Acid (weak) | Good |
Acid (strong) | Average |
Base (weak) | None |
Base (strong) | None |
Hydrogen sulphide | None |
Steam | None |
Ozone | Excellent |
Radiation | Excellent |