Frees rusted parts and helps stop corrosion on nuts, bolts, screws, fasteners, chains, cables and linkages, valves and fittings, lawn mowers and automobile engines. Displaces water from wet surfaces and leaves a rust inhibiting film. It dries out engines, spark plugs, coils, switches and wiring. Harmless to fabrics, plastic, leather. Similar product to WD40, CRC and LPS. Contains no silicone.