Hydrogenated Nitrile Rubber (HNBR) is a partially to fully hydrogenated derivative of Nitrile Rubber (NBR), designed to provide superior heat, oil, and chemical resistance, combined with outstanding mechanical strength and dynamic performance. Through selective hydrogenation of the NBR polymer backbone, the residual double bonds are saturated, greatly enhancing thermal stability, oxidative resistance, and ozone durability — while preserving excellent oil and fuel resistance.
Our HNBR compounds are engineered for high-performance seals, gaskets, and dynamic components used in oilfield, automotive, industrial, and aerospace environments where strength, temperature endurance, and chemical compatibility are critical. HNBR offers outstanding tensile strength (up to 4,000 psi), excellent tear resistance, and superior fatigue life, making it one of the most durable elastomers available for demanding mechanical applications.