Zinsser 5091 Sealant 72 hr Curing 40 to 120 deg F 10.1 oz Tube

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.