Contact Cleaner Dry Spary from Maldini is a mixture of high-quality and high-purity solvents, in a harmless to paints, plastic & rubber formula. The wetting ability and low surface tension enables CONTACT CLEANER to quickly penetrate into surface pores for gentle and effective dry cleaning. its also a universal cleaner for all kinds of electronic equipment and precision instruments. It cleans contacts, relays, and sensitive components quickly and efficiently, from oil, grease, dirt, and other contaminants.CONTACT CLEANER evaporates quickly leaving no residues. It prevents arcing resistance and wear.