Nitrile rubber (NBR) (Buna N)is a general purpose material resistant to a large variety of oils and greases. It is the workhorse of oil sealing owing to cost/performance compromise. Different nitrile compounds are available for fuels and for industrial fluids. Nitrile rubber is generally serviceable between -40°C and 105°C; it can withstand 120°C intermittently. It is not recommended for glycol-based brake fluids and EP-type lubricants. Types: Black Nitrile NBR (Buna-N) – STANDARD Black NBR sheet, commercial grade, smooth finish. Excellent resistance to oils, solvents and fuel. Meets ASTM D2000-BF. Material will be supplied as Durometer 60 unless otherwise stated. White FDA Nitrile – SPECIAL White NBR Food-Grade sheet, made from FDA-approved ingredients. Plate finish, good resistance to abrasion. Used for general gasketing, countertops and skirting in all areas of food processing. Non toxic and non-marking. Meets ASTM D2000-2BF.