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HNBR

HNBR (Hydrogenated Nitrile Rubber)

Durable oil-resistant rubber for EV thermal systems, hydraulic seals, and mechanically loaded precision parts.

Answer-First Summary

  • Temperature Range: -40 C to +150 C, compound-dependent
  • Media Profile: Oil, coolant, refrigerant, and selected industrial fluids
  • Engineering Role: A practical bridge between commodity NBR and higher-cost fluoroelastomers

Good Fit

Best fit when NBR oil resistance is useful but higher heat, ozone, and mechanical durability are required.

Typical Application Windows

EV thermal interface seals

Hydraulic and pneumatic seals

Oil-contact precision molded parts

Selection Comparison

Feature HNBRNBRFKM
Heat capability StrongModerateExcellent
Oil resistance ExcellentExcellentExcellent
Cost position MediumLowerHigher