Zinsser 5 gal. Waterborne Dry Fall Black Coating is a high-hiding interior flat acrylic coating for use over prepared ceilings and walls of commercial or industrial buildings. Formulated to provide a uniform finish on a variety of industrial construction materials with minimum overspray. Any overspray quickly dries to a dust-like finish for quick and easy cleanup. Use as a finish coat or as a primer prior to application of an oil or water based top coat.