WD-40 Specialist® Contact Cleaner drives out dirt, dust, oil, flux residue and moisture from sensitive electrical equipment and parts with ease. WD-40 Specialist Contact Cleaner spray is fast drying and non-conductive, working to quickly remove common surface contaminants that could cause current leakage, corrosion or component failure, leaving no residue behind. Safe and ideal for use on circuit boards, controls, battery terminals, switches, spark plugs, precision instruments, power tools and electric panels to keep your equipment on top form.