... rusted parts: penetrates and loosens rusted, corroded and seized nuts, bolts, controls, cables and fasteners.* Drives out ... contacts, car ignitions, motorcyle engines, outboard motors and tools.* Cleans & Protects: Dissolves grease, tar, ... and lubricates hinges, springs, castors, windows, handles, pedals and office chairs.WD-40 similar quality promise. Loading Ref.: Certificates: Multi purpose ...