What are the properties of NBR?

NBR (Acrylonitrile-Butadiene Rubber) is an elastomer that offers high resistance to mineral oils, fats, fuels, and waxes, but not to concentrated acids and certain chemicals. NBR seals are suitable for temperatures ranging from -30 °C to 100 °C and can withstand pressures up to 16 bar, and in special applications even up to 50 bar. They are ideal for applications in the oil and fuel industry.

Properties of NBR 


Product Specification Seal material
Material NBR (Acrylonitrile-Butadiene Rubber)
Color gray, silver
Technical Properties
Operating Temperature -30 °C to 100 °C / -22 °F to 212 °F (higher and lower temperatures are possible depending on the medium and application)
Working Pressure up to 16 bar / 232 psi (higher pressures up to 50 bar / 725 psi are possible depending on the medium and application)
Physical and Chemical Properties
Physical Sufficient aging resistance, low to moderate pressure and temperature resistance
Chemical Resistant to mineral oils, fats, and waxes (including motor oils), fuels (gasoline, diesel, etc.). Not resistant to concentrated acids (e.g. nitric acid, formic acid), concentrated oxidizing media (e.g. peracetic acid), aromatic and chlorinated hydrocarbons
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