Toupret Cachet Blanc decorators skim coat is a fine white leveling powdered surface filler. Cachet Blanc is used for quickly smoothing and surfacing large interior areas, making good defects and uneven surfaces prior to decoration leaving a smooth white finish. Cachet Blanc skims and smooths up to 5mm thick and is a superb filler and joint compound. No bonding coat is required and adheres to previously painted surfaces, textured finishes, painted wood chip, gypsum plaster, plasterboard, chipboard, wood, primed plywood, cement, brick, cellular concrete and dry wall linings. Do not apply onto polystyrene, wallpaper, and exterior elevations or on damp areas. Working time: 2 hours; Drying time: variable.