6 Pack, 2.5 Lb Carton, Zinsser WaterTite Concrete and Masonry Hydraulic Cement-5074DSV, Gray

Permanently seals and plugs deep holes and cracks on interior/exterior concrete and masonry surfaces Creates a watertight seal in only 5 minutes Effectively stops the active flow of water Excellent adhesion to wet surfaces Can also be used as an anchoring cementYou may also like 6 Pack, Clear, Zinsser Okon W-1 Water Repellent Sealer- OK911, Gallon.