MX6 is a synthetic extreme pressure grease which uses an organo clay thickener formulated to give premium performance and food grade purity, MX6 is a smooth light tan grease made from polyalphaolafins, It contains additives to protect against corrosion and oxidation. Is safe on rubber, and is ideally suitable for all plumbing O-rings & seals, Food machinery O-rings & seals, Pneumatic control valve O-rings & seals.