Drylok Fast Plug Series 00917 Hydraulic Cement, Gray, Powder, 4 lb

DRYLOK® Fast Plug® is a fast-setting hydraulic cement that sets in just 3 to 5 mins, preventing water from flowing, even under pressure, through cracks and holes in concrete and masonry structures. It's ideal for sealing floor and wall joints, patching settlement cracks and holes in masonry walls and anchoring metal to masonry. Similar to mortar, it sets and hardens extremely quickly.