Nitrile is the most widely used elastomer in the seal industry due to its excellent resistance to petroleum products and its ability to be compounded for service over a temperature range of -40°C to 125°C. Nitrile provides excellent compression set, tear, and abrasion resistance. The major limiting properties of nitrile are its poor ozone and weather resistance and moderate heat resistance, but in many application these are not limiting factors.

Temperature Range

Low -40° C
High 125° C

Hardness Range

30A to 70D

Application Advantages

  • Excellent oil, gasoline and aliphatic hydrocarbons (such as kerosene) resistance
  • Good heat resistance
  • Good mechanical properties rating
  • Good compression set rating
  • Good resistance to water, ammonia, concentrated acids, alkalis and aromatic hydrocarbons
  • Good resistance to oxidation
  • OK in steam, alcohols and chlorinated solvents

Application Limitations

  • Low resistance to ozone and sunlight
  • Poor in ketones and oxygenated solvents
  • Not recommended in methyl chloride
  • Poor flame resistance
  • Poor electrical resistivity


  • Gasoline hose, hydraulic parts, oil gaskets, linings