Rust-Oleum Zinsser Watertite Hydraulic Cement For Waterproofing Of Concrete & Masonry WaterTite Hydraulic Cement is designed to stop water flow and permanently seal deep cracks and holes in all grades of concrete. It plugs, seals and creates a "watertight" seal in 5 minutes, even while water is flowing. It can be used on concrete block, cast-in-place concrete, stucco, tilt-up, exposed aggregate and slump block and can be used as an anchoring cement. It is suitable for use on basement floors and cellar walls, expansion and control joints, curtain wall joints, windows, doors, panels, fountains, reflecting pools, planters, canals, retaining walls and privacy fences. For more information, visit the parent website of Rust-Oleum or Truworth Homes.