Permatex Electrical Contact & Parts Cleaner is designed for cleaning electrical and electronic devices. This fast evaporating, noncorrosive cleaner leaves no residue. It removes grease, dirt, oil, flux, and other surface contaminants. Designed to be an alternative to CFC-113,1,1,1-trichloroethane and perchlooethylene solvents. For use on circuit boards, computer components, relay switches, electric motors, generators, starters, pumps, motor windings, solenoids, and compressors.