Sprayon MR351 Mold Cleaner is a non-abrasive cleaner for all types of metal molds that also leaves a fine, microscopic inhibitor for short-term protection against corrosion. Surface moisture, dirt, oils, release agent residues and other contaminants are quickly eliminated without the necessity of removing the mold from the machine.USES:Metal molds, machinery, electrical and electronic equipment, pins, and mechanical equipment.