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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 - NBR H - Nitrile butadiene rubber - high ACN...

Clwyd reference

NBR H (high % acrylonitrile)

ASTM classification NBR

Copolymer of acrylonitrile and butadiene. The oil resistance and low temperature properties of the compounded material can vary considerably, depending on the acrylonitrile content of the base polymer.

Typical applications Oil resistant applications in automotive, marine and aircraft fuel systems
Advantages Good resistance to oils and non-polar solvents

Poor ozone and weathering resistance
Poor steam resistance

Available hardness range (Shore A) 40 - 90
Upper continuous service temp. (°C) 150
Min. temp. for sealing applications (°C) -40
Minimum non-brittle  temp.  (°C) -55
Tensile strength (up to) 30 MPa
Elongation at break (up to) 500%

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