Masonry and Concrete Acrylic Sealant is an acrylic compound for repairing and sealing cracks and joints in concrete, masonry stone, cinder block and brick. The gray textured finish blends easily with masonry and provides excellent outdoor durability. Made in the USA. Adheres To: Concrete, Cinder Block, Stucco, Stone, Mortar, Brick, Aluminum, Wood Use On: Steps, Sidewalks, Mortar Joints, Stucco Walls, Patios, Thresholds