NBR (Nitrile) Rubber: Superior Oil & Fuel Resistance Elastomer

NBR is recognized as the industry standard for components exposed to oils, fuels, lubricants, and many petroleum-based fluids. It also offers excellent compatibility with a wide range of hydraulic fluids, making it a trusted material for seals, gaskets, O-rings, hoses, and fluid-handling systems across automotive, industrial, and oil & gas applications.

NBR combines high tensile strength, tear resistance, and abrasion resistance, allowing components to withstand friction, repeated movement, and mechanical stress. These properties make it ideal for dynamic sealing applications, conveyor systems, rollers, and other high-wear environments where long service life is critical.

Thanks to its good compression set resistance, NBR can retain its shape and sealing force over extended periods of operation. This helps minimize leakage, reduce maintenance requirements, and improve the reliability of equipment operating under demanding conditions.

Available in a wide range of hardness levels and acrylonitrile (ACN) contents, NBR can be engineered to meet specific application requirements. Low-ACN formulations provide improved low-temperature flexibility, while higher ACN levels enhance oil resistance. Combined with its lower cost compared to specialty materials such as FKM/Viton, NBR delivers an excellent balance of performance and value.