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Rosco FoamCoat Foam Coat Coating for Styrofoam and Polystyrene Gallon

SKU: 150071000128

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Rosco FoamCoat Foam Coat is Inherently Flame Retardant and Water Resistant. #7100, 150071000128

Rosco FoamCoat or Foam Coat is a staple in Theater Supply.

FoamCoat is a non-toxic, water-based coating for styrofoam and polystyrene foam, as well as other surfaces. It provides a hard, durable finish that resists chipping and cracking, yet can be sanded smooth or carved to add detailing. FoamCoat can be used on a wide variety of surfaces including foam, primed wood, concrete block, primed fiberglass, papier mâché, muslin and many other materials. FoamCoat is fully compatible with all Rosco Scenic Paints used either as colorants or as surface coatings. FoamCoat is flame retardant and water resistant.

APPLICATION: Apply by brush, roller, or hopper spray gun depending on the desired finish. The thickness of the coating is determined by the application. When coating over fine details, use successive thin coats to build up a protective layer without obscuring the details. For an extra smooth finish without sanding, smooth the coated surface with a wet sponge just before the FOAMCOAT has set completely.

SUGGESTED USE: Excellent for use as a protective coating for all types of foam projects. Especially useful on foam scenery or props that receive physical abuse or need to last for extended tours. It can also be used as a texturing agent that is much more durable than plaster or joint compound.


COMPATIBILITY: Foamcoat is compatible with all water based coatings and is easily painted or tinted. Tint Foamcoat using Supersaturated Roscopaint or Universal Tints. It is not necessary to prime Foamcoat before painting.

MIXING: Stir well. Due to the weight of the solids in Foamcoat settling may occur. Use a power mixing blade for best results.

DILUTION: Use Foamcoat undiluted for most durable single coat application. Foamcoat may be diluted with water if desired. Thinner mixtures will flow and level more than an undiluted application and will dry to a thinner coating.

COLOR: Off-white, matte finish.

COVERAGE: Varies with application. Approximately 150 sq. ft per gallon.

FILM THICKNESS: Varies with application. 1/16" - 3/16" per application.

DRY TIME: Varies with thickness of coating. Approximately 2-8 hours. Allow 24 hours for full cure.

CLEAN-UP: Soap and water.

SHELF LIFE: Minimum 24 months.



The wide variety of scenic materials used in modern scenery, props and costuming make compliance with fire regulations much more difficult today. In an effort to simplify and clarify the treatment of all these different substrates and fabrics, Rosco has develop six new Flamex products suited to a very wide range of materials.

But adding to this challenge of these various goods to be treated is the fact that fire code regulations vary from state to state, and in some cases, city to city. You should always consult with your local Fire Department. Recognizing that the jurisdictions of New York City and California State are among the strictest in the US, Rosco Flamex products have been tested and certified for use by these Fire Departments. Our experience is that most other municipalities will recognize and accept these certifications but, your local Fire Marshall has jurisdiction and complete discretion.

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