Proper surface preparation is essential for a long-lasting finish. Paint will not adhere to dirt, grease or water solubles such as wallpaper paste or glue sizing. Remove all loose or peeling paint. Blend edges by sanding. Wash surface with water and detergent, rinse well and allow to dry.
Chalking surfaces should be thoroughly cleaned with water and a scrub brush. Remove loose material from cracks and holes, and fill with a quality spackling compound. When dry, sand smooth and wipe free of dust with a damp cloth. Smooth surfaces work best, rough concrete or cinderblock surfaces are not recommended. For good adhesion to gloss or semi gloss surfaces scuff the surface with sand-paper and use a liquid deglosser.