Prekote is a unique V.O.C. compliant, single package, under coater for use with Brightside Polyurethane, Toplac, Yacht Enamels or any one-part topside finish. Microspheres are used to give Prekote superior build and hide while improving flow and sandability. Prekote is recommended anywhere above the true waterline where a coating is needed to provide a smooth, fair surface for overcoating with a topside enamel. Prekote is available in both White (4279) and Gray (4280). The use of Prekote Gray 4280 is recommended for use under dark colors. White (4279) and Gray (4280) may be blended for use under intermediate colors. Do Not Use INTERTHANE PLUS 2300 Series Polyurethane or any two-part catalyzed product over Prekote. Prekote must be sanded prior to overcoating with one-part topside finish. Gray available in quarts only.