Fast-drying filler seals porous masonry surfaces. Fills the voids in cement and cinder block, reducing the amount of finish coat needed to coat such surfaces. Provides an ideal primer surface for latex and oil-base topcoats. Formulated for professional painter use in residential, commercial, institutional, and industrial applications. Free from lead and mercury hazards. Exterior use requires topcoating with exterior paints for maximum performance. Covers up to 750 sq. ft. per 5 gallon.