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Rubber in Engineering Group @ Clwyd - Sep 2018

Clwyd welcomed the Rubber in Engineering Group on Friday 21st September, more than 20 more

Polymer Types - FKM 3   Fluoroelastomer terpolymer containing fluorinated vinyl ether...

Clwyd reference FKM3
ASTM classification FKM type 3

Type 3 FKM are peroxide-cured fluorocarbon polymers designed for use in low temperature applications

Typical applications

Seals and gaskets for chemical processing, power and utilities subjected to lower temperature conditions.


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


Limited steam resistance
Moderate methanol resistance

Available hardness range (Shore A) 60 - 95
Upper continuous service temp. (°C) 250
Min. temp. for sealing applications (°C) -25
Minimum non-brittle  temp.  (°C) -40
Tensile strength (up to) 20 MPa
Elongation at break (up to) 300%

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