This packing is recommended for solvents, mild acids and alkalis, fuel oil, digester pumps, food, pharmaceuticals, petro-chemicals, pulp and paper industries. A good packing for high pressure dozing pump and high pressure water injection system. The rings made out of this packing are recommended to use as 'BACK -UP' rings (anti-extrusion rings) with other types of soft packings especially where high pressure is involved.