HNBR (Hydrogenated Nitrile Butadiene Rubber) is a high-performance synthetic rubber derived from hydrogenation of NBR (Nitrile Butadiene Rubber). During the hydrogenation process, the double bonds in the polymer backbone are saturated, which greatly improves the thermal and oxidative stability of the rubber. One of the main advantages of HNBR is its excellent resistance to fuels, oils, lubricants, and various chemicals, far superior to conventional NBR. It also exhibits outstanding resistance to ozone, sunlight, and environmental aging, making it ideal for long-term use in harsh conditions. HNBR offers high mechanical strength, excellent abrasion resistance, and a wide service temperature range (typically from –40°C up to +150°C, or even higher depending on the grade). Because of these enhanced properties, HNBR is widely used in demanding applications such as seals, O-rings, timing belts, oil seals, and gaskets, particularly in the automotive, oil & gas, and chemical industries. In summary, HNBR is a premium-grade elastomer that combines chemical resistance, durability, and performance stability, making it indispensable in critical engineering applications.
High heat resistance – service temperature range from approx. –40°C to +150°C (higher in some grades).
Excellent oil and chemical resistance – outstanding compatibility with fuels, engine oils, hydraulic oils, and lubricants.
Superior aging resistance – strong resistance to ozone, sunlight, and oxidative degradation compared to conventional NBR.
High mechanical strength – excellent tensile, tear, and compression strength.
Outstanding wear resistance – durable under abrasive and high-friction conditions.
Good elasticity – suitable for seals and dynamic applications requiring flexibility and recovery.
Long-term stability – reliable performance in harsh and demanding environments.
Automotive industry – seals, O-rings, gaskets, timing belts, and oil seals.
Oil & gas industry – sealing elements and parts exposed to hydrocarbons, chemicals, and high pressure.
Chemical processing – gaskets, hoses, and seals in contact with aggressive chemicals.
Industrial machinery – rollers, belts, and components requiring durability and strength.
Hydraulic and pneumatic systems – seals for high-pressure and high-temperature environments.
Wear-resistant equipment – protective covers, anti-vibration parts, and heavy-duty rubber components.
