WATERPLUG is based on a blend of cements, graded aggregates, special fillers and chemical additives which control the rate of set and minimize the risk of thermal cracking. WATERPLUG is supplied as a ready to use blend of dry powders which requires only the site addition of clean water to produce a highly consistent. WATERPLUG is a quick set hydraulic cement which instantly stops running water and seepage through concrete and masonry walls and floors. Where conventional mortars would be washed away and even when rapid set mortars would not bond.