Seetec NBR B6840 Acrylonitrile butadiene rubber Hyundai SEETEC Rubber - Elastomer >> Butadiene-acrylonitrile / Nitrile rubber, NBR SEALANT B6840 O-RINGS, SEALS, SPONGES, SHOES OPTIMUM PROCESSABILITY & REBOUND ELASTICITY SEETEC NBR B6840 are a copolymer of butadeine and acrylonitirle manufactured by cold emulsion polymerization technology of Goodyear Tire and Rubber Company, USA. SEETEC NBR B6840 are a non staining, medium low Mooney, medium acrylonitrile polymer designed for easy processing, cleanliness and excellent physical properties. Those polymers offer very low mold fouling, fast cure, and high resilience. SEETEC NBR B6840 are recommended for use for wide range of general purpose applications including injection molded O-rings, calendered belting, extruded hose and sponge. Non staining, medium low Mooney, medium acrylonitrile, copolymer of butadiene and acrylonitirle manufactured by cold emulsion polymerization. Used in seals. Offers easy processing, cleanliness and very good physical properties. Gives very low mold fouling, fast cure, high resilience and rebound elasticity.