PINPRUBBER – N is an elastomer based on acrylonitrile-butadiene rubber and is mainly used for U-rings, wipers, V-packings, and special seals. PINPRUBBER – N has good resistance to mineral oils and greases and HFA, HFB, and HFC fire-resistant pressure fluids. It is not resistant to glycol-based brake fluids, HFD fluids, aromatic fluids (benzene), esters, ketones and amines, concentrated acids, and bases.