DOT 111/113 is a water-based, non-toxic, biodegradable, cleaning solution for use on metal and other hard surfaces. The product can replace chlorinated solvents scheduled for elimination under the U.S. Clean Air Act and other environmentally objectionable cleaning solvents in specific cleaning applications. It is used to remove hydrocarbon and other organic residue as well as inorganic material from surfaces and is non-corrosive to a wide array of metals, plastics, rubber and other materials. It conforms to NASA test protocol for use in cleaning liquid oxygen systems and is accepted by the U.S. Navy as a pre-cleaner for oxygen systems. It is also used to clean outer surfaces of aircraft and bare metal prior to painting among many other general uses. Airlines headquartered in the United States use DOT 111/113 to wash the exteriors of aircraft.