Nipol 33-5HM 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. Low mold fouling, high-modulus, 55 Mooney nitrile rubber, recommended for high-temperature injection molding. Butadiene and acrylonitrile copolymer. Provides low mold fouling, high-modulus. Used in adhesives for high-temperature injection molding.