Foamcoat is a non-toxic, water-based coating for styrofoam and polystyrene foam. It can also be used to seal primed wood, concrete block, primed fiberglass, papier mâché, muslin and many other surfaces.
Applied by brush or roller, it provides a hard, durable finish that resists chipping and cracking, yet can be sanded smooth or carved to add detailing. Foamcoat is inherently flame-retardant and water-resistant. Dries to an off-white matte finish. Cleans up with soap and water.
One gallon covers approximately 150 square feet.