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Operating Temperature-30°C to +150°C
HNBR (Hydrogenated Nitrile Butadiene Rubber) is a significantly upgraded version of standard NBR, produced by hydrogenating the carbon-carbon double bonds. The result is a material with far superior heat resistance, mechanical strength and chemical resistance — particularly suited to oil & gas and automotive applications.
Key Properties
- Superior heat resistance over standard NBR (up to 150°C continuous)
- Excellent resistance to H₂S, sour gas and engine oils
- High tensile strength and abrasion resistance
- Good resistance to ozone and weathering
- Suitable for HPHT (high pressure, high temperature) downhole environments
Limitations
- Not suitable for chlorinated solvents, ketones or phosphate esters
- Higher cost than standard NBR
Typical Hardness
70–90 Shore A available
Typical Applications
- Oil and gas downhole seals
- Automotive engine and transmission seals
- Refrigeration compressors
- Mining equipment
- Air conditioning systems
- Fuel hoses and couplings