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SteelMaster 1200WF is a one component waterborne acrylic thin film intumescent coating. It is independently approved for fire protection of structural steel exposed to cellulosic fire and can be used as mid coat or finish coat in atmospheric environments. It is suitable on approved primers on carbon steel substrates.​ The declared product is specially designed as a reactive fire protection system for steel constructions. It is designed to protect for up to 180 minutes on a wide range of I section beams, columns and hollows.​ SteelMaster 1200WF is suitable for structural steel exposed to internal environments. For a detailed coating specification please contact your local Jotun representative.