Fire Retardant Paint Latex Intumescent Coating Flat Finish - FR-210INSL X Fire Retardant Paint is a high quality latex decorative, intumescent, fire retardant coating for interior ceilings, walls and trim. This product provides a high hiding flat finish that retards flame spread by reacting to heat and forming a thick cellular char blanket (intumescence). By reducing excessive heat penetration, this product retards flame spread and minimizes smoke generation. It is suitable for primed or previously painted wood,