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Polymer Types - FKM 2 - Fluoroelastomer terpolymer...

Clwyd reference FKM2 (bisphenol-cured)
ASTM classification FKM type 2

Type 2 FKM are fluorocarbon terpolymers based on vinylidene fluoride, tetrafluoroethylene fluoride and hexapropylene fluoride. They may be cured using bisphenol (FKM2) or peroxide (FKM 2P).

Typical applications Seals and gaskets for chemical processing, power and utilities
Advantages

Excellent high temperature resistance
Good resistance to oils and most non-polar solvents
Excellent ozone and weathering resistance

Disadvantages

Limited steam resistance
Poor low temperature performance

 
Available hardness range (Shore A) 50 - 95
Upper continuous service temp. (°C) 240
Min. temp. for sealing applications (°C) -10
Minimum non-brittle  temp.  (°C) -35
Tensile strength (up to) 20 MPa
Elongation at break (up to) 250%

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