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Hydrogenated Nitrile (HNBR, HSN) Seals

Last Updated: Feb 05, 2013 02:58PM EST
Hydrogenated nitrile is a synthetic polymer that results from the hydrogenation of nitrile rubber (NBR). Superior mechanical characteristics, particularly high strength, helps reduce extrusion and wear.


Heat Resistance

  • Up to 150°C (300°F)

Cold Flexibility

  • Down to approximately -48°C (-55°F)

Chemical resistance

  • Aliphatic hydrocarbons
  • Vegetable and animal fats and oils
  • HFA, HFB and HFC hydraulic fluids
  • Dilute acids, bases and salt solutions at moderate temperatures
  • Water and steam up to 149°C (300°F)
  • Ozone, aging and weathering

Not compatible with:

  • Chlorinated hydrocarbons
  • Polar solvents (ketones, esters and ethers)
  • Strong acids

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