AMBIANCE CEILING Extra matte finish for ceilings. Masks imperfections, does not splash and is very washable. Area of application: Indoor Surface: brick, raw concrete, cement cladding, plasterboard, plaster Packaging: 5 L, 2.5 L Can be painted over: +/- 4 hours Drying time: +/- 1 hour Yield: 12 m²/L per layer Cleaning tools: warm water and soap Tools: Brush, roller Primer: AMBIANCE MURPRIMER (Whether you should use a primer or not depends of the nature and condition of the subsurface).