Dissolves traces of copper, lead, brass, zinc and tombac Cleans, lubes and protects every part of your gun Forms a film against rust Never gums up or hardens Ideal for protecting and preserving gun metal and wood stocks Removes rust and neutralizes bluing salts found in the barrels of new guns, including airguns Neutralizes fingerprints (which are acidic) Actively propels itself and reaches areas inaccessible to the applicator Originally invented for military use Biodegradable and environmentally friendly Non-toxic and contains no carcinogens Non-aerosol 4 oz.