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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 5   Fluoroelastomer pentamer containing tetrafluoroethylene & fluorinated vinyl ether...

Clwyd reference FKM 5
ASTM classification FKM type 5

Type 5 FKM are fluorocarbon pentapolymers which show improved base resistance compared to most other fluorocarbon polymer types

Typical applications Automotive applications where high pH conditions are expected

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

Disadvantages Poor steam resistance
Available hardness range (Shore A) 60 - 95
Upper continuous service temp. (°C) 250
Min. temp. for sealing applications (°C) -10
Minimum non-brittle  temp.  (°C) -15
Tensile strength (up to) 20 MPa
Elongation at break (up to) 250%

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