Dupli-Color Self-Etching Primer etches and primes bare metal in one step, making it ideal to use as the first step in all automotive priming projects and for use on spot repairs. A high-quality formulation allows for maximum adhesion under all types of automotive finishes on plastics, fiberglass, bare steel, aluminum and stainless steel surfaces. Product Features: Features EZ Touch Fan Spray Nozzle, Helps Achieve Top Coat Uniformity, For Use On Pre-painted And Unpainted Surfaces, Sands Easily, Dry To Touch In 30 Minutes / Handle In 1 Hour, Use On Metal, Wood, And, Fiberglass Surfaces