CRC 5-56 Marine is a multi-purpose lubricant designed to prevent damage due to water and salt atmosphere in marine engines and boating equipment. CRC 5-56 Marine increases life span, decreases maintenance and assures improved performance of all marine inboard or outboard motors. It forms a thin film that protects metals from corrosion caused by humidity and salt air for extended periods and lubricates moving parts for smooth action. Superior penetrating power breaks through rust and corrosion, loosens rusted parts and keeps them free, displaces water from wet equipment and cleans away scale and dirt. It displaces moisture out of ignition systems to help start wet engines. It is safe for all metals and alloys and on most painted surfaces, coatings, plastics and rubbers.