Helps to create a blemish-free finish when used with SeaGloss Pro Topside Polyurethane PaintSeaGloss Pro Primer/Undercoater is a fast-drying fiberglass and wood primer. It should be used as a base coat whenever the surface to be painted is aged, cracked, checked, pitted or in any way less than smooth. It can be applied to fiberglass, wood, and previously painted surfaces. Dries quickly and is easy to sand. It provides a smooth base that allows Sea Gloss Pro Polyurethane Topside Paint to dry to a uniform gloss and appearance. Do not use below the waterline. Quart. Formulation: One-part high-build primer Drying Time: To recoat —2 to 18 hrs. Number of Coats Recommended: One or more, depending on surface conditions Thinner: Thinner & Dewaxer, Model 5437207 Coverage: 100 sq.ft/qt; 400 sq.ft/ga. Color: White