NBR

Nitrile Rubber

Abbreviation: NBR

At temperatures up to 100C, or with special compounding up to 120C, nitrile rubber provides an economic material having a high resistance to aliphatic hydrocarbon oils and fuels. Different grades are available - the higher the acrylonitrile (ACN) content, the higher the oil resistance but the poorer is the low temperature flexibility. It has high resilience and high wear resistance but only moderate strength. It has limited weathering resistance, and poor aromatic oil resistance. It can generally be used down to about -30C, but special grades can operate at lower temperatures.