Waterplug? hydraulic cement from Thoro Consumer Products is a cement-based, quick-set, hydraulic cement for concrete and masonry. A dry powder mixed with water, it sets in 3-5 minute, expanding as it sets to lock in place even under constant water pressure, and can be applied under water. Waterplug? instantly stops running water or seepage through holes or s in concrete or masonry walls, water storage facilities, tunnels, fountains, etc. To use this product the surface must be clean and structurally sound. Mix Waterplug? powder with minimal clean water for no longer than 30 second to make a stiff putty to fill active leak. For larger area preventative work, mix to a heavy batter. Mix only enough that can be used in 3 minutes. Wearing protective gloves and goggles, Waterplug? cement can be applied by hand or trowel. Press Waterplug? cement by hand into the or hole and hold in place without twisting (wearing gloves). Product will start to expand and seal the leak. Clean tools with warm soapy water immediately after use.Contact:Thoro Consumer ProductsTel: +1-216 839 7171, +1-866 518 7171Fax: +1-952 496 6067, +1-800 496 6067Email: thoroconsumer@basf.comWebsite: www.thoroproducts.com