Apply this slate paint on your walls, objects and furniture and have fun drawing and writing on it with chalk. Perfect for children's bedrooms and can be applied to wood, plastic, canvas, card and most conventional painting surfaces. For porous surfaces, first apply a suitable undercoat. Stir the colour and apply to a clean, dry, smooth surface. Apply in 2 thick layers and allow to dry 4 hours between coats. Allow to dry thoroughly for 72 hours before applying chalk.