This product cleans contacts and other areas that require a clean, dry surface. Leaves no residue or scratches. For Use On: contacts, connectors, micro processors, LEDs, optical filters, solenoids, circuit breakers, tuners, selector switches, printed circuits and signals. Applications listed are for guidance only. Final application must be determined by user. Residue free, safe on plastics, fast evaporating. Net Wt. 383g / 13.5 oz.