LOOSE SCREW is a non-flammable, 4-in-1 formula that penetrates, lubricates, displaces moisture and resists corrosion. This lubricant is used by factories, truck lines, delivery services, transit systems, schools, machine shops, service stations, airlines, air maintenance shops and general industries. Contains no ozone depleters. LOOSE SCREW excels as a: LUBRICANT: Superior, long-lasting lubricant made specifically to hold contact with metal, rubber, metal to rubber, or rubber to rubber contact. Fortified with ultra-slick PTFE which lowers inter-surface friction and increases lubricity. PENETRANT: Penetrates frozen or rusted-on nuts, bolts, joints, coupling, pipe threads, or other parts and frees them for use. WATER DISPLACER: Displaces water and moisture from electric contacts, mechanical controllers, machinery parts, equipment and many other water sensitive surfaces, keeping them functioning to peak efficiency. CORROSION INHIBITOR: Adds a protective layer onto the surface to provide a physical barrier to water and oxygen to control corrosion on a variety of surfaces.