The Misty Contact and Circuit Board Cleaner III is safe for use on plastics, rubber, and metal so that it removes, dirt, dust, flux, and light oils. A fast dry, flammable electronics cleaner. Must be used only on de-energized components and equipment—Non-ozone-depleting and Nonconductive to 25,000 volts, Adhesives, Dust, Grease, Grime, Oil-Based, and Water-Based Soil.