These sealers protect surfaces against weather, moisture, corrosion, oil, alkalies and acids. The sprays can afford easy access to hard-to-reach spots. Use Insulating Spray sealers to spray over insulation on wire and cable splices, as a general-purpose sealer, or for touch-up insulation on motor windings and frames. Sprays are available in clear, red or black. Precautionary and first aid