Seal deep cracks and holes with Rust-Oleum Zinsser WATERTITE Polyurethane Sealant for Concrete and Masonry. This high-performance, one-component, moisture-curing polyurethane formula permanently fills joints and remains flexible over time. Polyurethane Sealant can be used on basement and cellar walls, expansion and control joints, curtain wall joints, windows, doors, panels, fountains, reflecting pools, planters, canals, retaining walls and privacy fences.
- Flexible joint filler - remains flexible over time
- Fills deep cracks and holes
- Excellent adhesion - does not diminish over product life
- Seals and waterproofs
