Interlux Pre-Kote is a unique V.O.C. compliant, single package, undercoater for use with Brightside Polyurethane, Toplac, Yacht Enamels or any one-part topside finish. Microspheres give Pre-Kote superior build and hide while improving flow and sandability. Use anywhere above the true waterline where a coating is needed to provide a smooth, fair surface for overcoating with a topside enamel. The use of Pre-Kote Gray is recommended for use under dark colors. White and Gray may be blended for use under intermediate colors.