Durabak Original (For Indoors), SMOOTH version - Non Slip Coating, Bedliner, Deck Paint for ALL Boats - Many colors to choose from! - WHITE - QUART Durabak Original is a one-part, moisture cured, polyurethane protective coating with unlimited applications. This version of Durabak is recommended for indoor use or for use not in direct sunlight. Durabak Original is tough, totally flexible, slip resistant and waterproof. Durabak Original is an outstanding product that provides a non-slip coating and professional grade finish to do-it-yourself projects. Durabak Original can be applied by roller, brush or spray and will bond to concrete, wood, fiberglass, metal and coated surfaces. Durabak Original will even bond to itself making it easily repairable if necessary. Just open the can, stir and apply to the prepared surface.