The paint can be used on concrete, plaster, plasterboard, chipboard, MDF, fabric, wallpaper or previously painted surfaces. Surfaces painted with black board paint can be recoated with all kinds of waterborne acrylic paints. Paint one to three times for full coverage. Let the paint dry for two hours between coats. The paint should dry for at least 12 hours before use. Consumption: 6-10 m2/litre.