EL2302 ELECTRICAL CONTACT CLEANER IS A NON-OZONE DEPLETING CLEANER THAT REMOVES OIL, GREASE AND DIRT FROM SENSITIVE EQUIPMENT AND PRECISION INSTRUMENTS LEAVING NO RESIDUE. IT IS NON-CONDUCTIVE AND SAFE ON MOST PLASTICS. HIGH VELOCITY SPRAY VALVE QUICKLY PENETRATES DELICATE ELECTRICAL/ELECTRONIC PARTS AND LEAVES NO RESIDUE.