Zinsser OKON® S-20 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 dense concrete and masonry with Rust-Oleum® OKON S-20 Water-Repellent Sealer. This silane/siloxane formula penetrates deeply to create a tough, hydrophobic barrier against water invasion.