Any peeling or flaking paint on a previously painted surface must be removed before recoating. All cracks and pits in the surface must first be filled with any common paintable crack filling material. Asphalt surfaces may be repaired with any good asphalt patching compound available at most hardware and building supply centers. Concrete surfaces may be repaired with our #960 Concrete Patch or other material of like quality.
Once the surface repairs have been made and the patching material has set overnight, simply sweep the surface free of dirt and loose debris. No other surface preparation is necessary except on surfaces where grease, oil, or oily residue are present. These surfaces should be thoroughly washed with a solution of tri-sodium phosphate (TSP) or No. 910 Washing Compound. Mix the No. 910 Washing Compound or TSP at a ratio of 8 oz. of powder to 1 gallon of water. After scrubbing the surface thoroughly with this solution, hose down and rinse completely with water. To ensure better adhesion of the coating, new or non-porous, slick concrete surfaces should be etched with a 15% solution of muriatic acid before painting. After etching, scrub the surface thoroughly with TSP and water solution to neutralize any acid and then thoroughly rinse with fresh water.