Permanently stop the active flow of water with Rust-Oleum® Zinsser® WATERTITE® Hydraulic Cement for Concrete & Masonry. This powerful formula adheres to wet surfaces and expands as it dries to fill deep cracks and holes, creating a watertight seal in just five minutes.
For Best Results
Sets quickly; only mix as much as you can use in 3–5 minutes.
Available Sizes