Set time: 3-5 minutes | Stops water, even under pressure | Anchors metal to masonry | Not top coat required | A powder that mixes with water | Use to patch interior or exterior mortar joints, cracks and holes in masonry walls above or below grade, sealing leaks around concrete and masonry | Withstands up to 3,050 lb. of hydrostatic pressure | Sets within 3 - 5 minutes to stop active water leaks | Interior and Exterior use, no topcoat required | Expands as it dries to lock in place