Transform everyday surfaces into a chalkboard with this fast-drying, non-toxic clear coating. Apply it to walls, cabinets, doors, terra-cotta, metal and most porous surfaces to create matte chalkboard finish. For best results, apply one coat vertically, one horizontally over painted surface. Allow it to dry one hour between coats and cure for 24 hours before use. Lightly rub chalk over surface to condition. Recommended for indoor use only.