Hydrogenated Nitrile Butadiene Rubber (HNBR) is produced by hydrogenating nitrile rubber latex under catalysis and high pressure. It was developed in the mid-1980s and put into mass production. HNBR offers outstanding resistance to oil, heat, solvents, and abrasion.
Main Features:
- Excellent heat resistance.
- Excellent oil resistance.
- Better low-temperature performance than NBR.
- Exceptional resistance to ozone aging.
- High tensile strength.
- Superior wear resistance.
- Good resistance to a variety of media (such as hot water, acids, alkalis, and amines).
- Resistance to hydrogenation-this is a unique advantage of HNBR.
Main Applications:
- Oilfield transportation pipes and sealing components.
- O-rings and seals for new refrigerant R-134A systems.
- Timing belts.
- Hoses with oil and water resistance.
- High-demand oil seals.
- ORING seals for mechanical equipment pressure systems.
- ORING seals and gaskets for R-407 refrigerant systems.
- Hoses resistant to high temperatures and oil.
- Rubber components in diesel fuel containing RME (Rapeseed Methyl Ester) components.
ASTM Designation Code: DH
Hardness Range: 50–90 Shore A
