Old Masters Woodgrain Filler Natural Tone Quart Fills Open-Grain Woods Designed to fill the pores of open-grain woods and help to achieve a smooth finish For interior use on open grain woods such as oak, ash and mahogany Natural in color, but best when mixed with oil-based wood stain to match desired wood tones Mix with wood stain with a 2 parts filler to 1 part wood stain ratio Covers 125 square feet per quart