Primer is necessary for the best bond between your deck and your new non-skid Tuff Coat Rubberized Deck Coating. This water-based epoxy primer kit is designed for use on concrete, wood, fiberglass and painted surfaces. It is excellent on extremely moist surfaces including docks and boats. One quart of primer is recommended per gallon of coating. Application is easy using your choice of rollers, brushes or sprayers. For best results, mix with a drill type paint mixer. Dries to a clear finish. 1 quart covers 62 square feet and 1 gallon covers 250 square feet.