Nipol 33-5SR Acrylonitrile / Butadiene polymer 9003-18-3 Zeon Chemical Rubber - Elastomer >> Butadiene-acrylonitrile / Nitrile rubber, NBR ADHESIVE Zeon's wide range of NBR elastomers are generally catagorized by the ACN and Mooney Viscosity. The higher ACN levels have better chemical resistance but poorer low temperature properities. The lower ACN levels will have higher swell in oils and fuels, but improved low temperature flexibility. Special-purpose, intermediate-viscosity nitrile rubber designed to provide maximum processing safety without fouling molds. Recommended for high-temperature injection molding of parts. Butadiene and acrylonitrile copolymer. Possesses intermediate viscosity. Provides very good processing safety without fouling molds. Used in adhesives for high-temperature injection molding.