QD Electronic Cleaner from CRC Industries is a precision cleaner for sensitive electronic equipment and parts like circuits and computer components. It improves the electrical connections in vehicles.It is plastic safe, dries quickly and leaves no residue. CRC QD Electronic Cleaner is used to clean electronic equipment, ignition systems, contacts and connectors such as spark plugs, tool battery connections, circuit breakers, relay switches, thermostats, light sockets and power receptacles.