The Dulux Design Chalkboard range helps create a surface into a chalkboard. It is suited for interior use only and water based. Dulux Chalkboard may be applied over an existing paint finish providing the surface is free of dirt, grease and dust. Scrape and sand down any loose, peeling or flaking paint. Surfaces previously painted with gloss or semi gloss paints should be sanded back to a dull finish. Chalkboard from the Dulux Design Effects Collection turns walls into an instant chalkboard. Create an instant chalkboard in kids' bedrooms, on toy boxes, furniture and in the kitchen.