This fast-drying contact cleaner spray is a non-conductive spray which has been specifically designed for use on all sensitive electrical components. It provides efficient cleaning with minimal fuss, removing dirt, dust, condensation & flux residue with ease. Always make sure that the product is allowed to completely dry before powering on any electrical components that you have cleaned. This electrical contact cleaner spray is ideal to be used on circuit boards, switches, even spark plugs & tape heads. It will remove all the contaminants that cause current leakage & eventual component failure. In damp conditions, it helps to chase away condensation for more efficient electrical contact, such as in spark plugs & electrical connections in cars. You can also safely use WD40’s Fast Drying Contact Cleaner on plastics, rubber & metal for superior surface cleaning. As an added indicator of a quality product, WD40's designers have compiled this can with their Smart Straw applicator, which gives you two ways to spray: use the flip-up straw for hard-to-reach areas, such as: inside chains, locks or rollers. Then, flip the straw down to use the wide-angle spray eye for area coverage on larger surfaces. Whichever way you need to spray, you can rely on the clever 360° valve to work efficiently at every angle, even upside down!