General Electric GE5020 Concrete and Masonry Silicone II  Caulk, 10.1-Ounce, Light Grey 3-hour rain-ready Sun-/freeze-proof Typical uses: Sidewalks, driveways, patios, masonry, steps, foundations (above ground) and tuck/repointing masonry Adheres to: most concrete, granite, brick, slate, ceramic tile, asphalt and wood Why 100% silicone? Unlike acrylic, silicone is permanently: waterproof, flexible, shrink-/crack-proof