TOP COAT CONCRETE - 4 oz. bottle. Brush on full-strength (or dilute, if preferred) over Smooth-It (WD1452), to color paved surfaces; such as sidewalks, curbs, parking lots or roads. Road System 'Smooth-It' is an easy way to build roads, parking lots, sidewalks or curbs on any surface. Use in conjunction with the following road system products to create a smooth road surface: WD1455 'Paving Tape', WD1453, 'Top Coat Asphalt' or WD1454 'CONCRETE ASPHALT'.