Used in filling and sealing cracks in driveway, walks, parking lots, and other asphalt based pavement material. Repairing cracks before topcoating surface with all types of driveway sealers. Superior long-lasting adhesion. Won't become brittle or shrink.Fills cracks 1 in deep and up to 1/2 in wide. Holds strong under extreme weather. Specially formulated asphalt emulsion filler compound to prevent damaging water entering cracks in asphalt pavement.