Zinsser OKON® S-40 Concrete & Masonry Water-Repellent Sealer - 1 gal.

Featuring Micro-Plug and silane/siloxane technologies, OKON provides a low-VOC, water-based shield against moisture and the effects of water damage for all types of surfaces. Lock out water and its damaging effects on concrete and masonry -- even on porous surfaces! --with Rust-Oleum® OKON S-40 Water-Repellent Sealer. This high-performance silane/siloxane formula penetrates deeply and reduces water leakage 100%.