Rosco Foamcoat is a water-based, flame retardant, protective coating for all rigid foams. An acrylic slurry the consistency of wet plaster, Foamcoat dries to a super hard, durable coating that resists chipping and cracking, yet can be sanded smooth or carved with detailing. It is especially useful on scenery or props that receive excessive abuse or needs to last for extended tours. Foamcoat is also a superb texturing agent that can be used on floors. It is fire retardant and weather resistant. Coverage varies with thickness of application, approximately 150 sq. ft. per gallon.