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