Black oil resistant NBR rubber sheet also called buna-n, nitrile rubber and nitrile butadiene rubber, is a synthetic rubber manufactured from a copolymer of acrylonitrile and butadiene. NBR rubber is highly oil-resistant and is often used in the production of gaskets, rollers, fuel hoses and other rubber products in which high oil resistance is essential. View our complete range of standard nitrile rubber sheet materials in our online store here.