The Spruce Light Gray Primer provides excellent resistance to heat and corrosion while being sandable. It can be used with lacquer, enamel and acrylic paint for a variety of applications. For best results, sand lightly with fine sandpaper or steel wool prior to applying finish coat. This primer provides maximum rust protection and adhesion for a finishing top coat. It is easy to apply and dries quickly for a smooth, professional finish. FleetPride is your First Click in Heavy Duty®.