Intumescent Fire Retardant Coating is a water based fire retardant latex coating for interior and exterior (top-coating required) applications. When subjected to fire, it swells 60 to 100 times than that of its original thickness forming a stable and inert carbonaceous char which forms a physical barrier between the flame and the substrate. The most common use for intumescent paints in architecture is to provide a beautiful finish and protection on exposed structural steel materials. These can be applied to most metallic and non-metallic surfaces like steel, aluminum, wood, plyboard, plastics, electrical cables, and any surfaces that require protection from fire.