Nitriflex NBR is an acrylonitrile butadiene copolymer which is polymerized (hot or cold) with a non-staining antioxidant. Performance Nitriflex NBR is recommended for applications that require excellent resistance to oils and fuels. Applications DiaphragmsSealing ringsFuel hosesSealantsFootwearTechnical Specifications Contact an Alternative Rubber & Plastics, Inc. salesperson to learn how this product will transform your operation!