This is a copolymer of acrylonitrile and butadiene in which the proportion of acrylonitrile may vary from 18 to 40%. Generally speaking higher the proportion of acrylonitrile in the NBR, the poorer the physical properties but better the oil resistance. Compared to chloroprene NBR exhibits higher oil and heat resistance while, sunlight resistance is not as good. Nitrile rubberis used for the production of many kinds of oil, gasoline, solvent hose, oil seals, gaskets, O-rings, brake linings, printing rolls, chemical plant lining, industrial adhesives etc. Blends of nitrile rubber and PVC provide an extremely tough oil and abrasion resistant material for heavy duty cable sheathing and soles on industrial footwear. Nitrile latices, including carboxylated grades, have important applications in paper making and coating, in the manufacture of non-woven fabric, artificial leather, and in finish and waterproofing of real leather.