About Penetrating Silane/Siloxane S40
Lock out water and its damaging effects on concrete and masonry—even porous surfaces— with Rust-Oleum OKON S-40 Water-Repellant Sealer. This high-performance silane/siloxane formula penetrates deeply and reduces water leakage 100% Ready to use and paintable.
- For use on vertical/horizontal, flat surfaces—old brick, driveways, patios, etc.
- Prevents water efflorescence and freeze-thaw damage; breathable
- Clear, non-yellowing, non-glossy; water-based, low VOCs and very low odor
FOR BEST RESULTS
- Apply with a low-pressure airless sprayer.