Features and BenefitsSafe to use on electrical equipment, most plastics, rubber and metalCleans sensitive electronics equipment and removes over 95% of common surface contaminants for optimal performanceLeaves no residue50-state VOC compliantNSF Nonfood Compounds Program Listed K2 (#146857)WD-40 SpecialistContact Cleaner, featuring patented Smart Straw technology, blasts away oil, dirt, flux residue and condensation from sensitive electronics and electrical equipment with pinpoint precision. It dries quickly, leave no residue and removes over 95% of common surface contaminants, making it the best at cleaning electrical contacts and for optimal performance of equipment. Safe and ideal for use on printed circuit boards, controls, battery terminals, switches, precision instruments and electric panels.