Water Block Invisible Penetrating Masonry Sealer

GST International Water Block Invisible Penetrating Masonry Sealer is a water-based sealer that provides water repellency and reduces water absorption to a wide variety of porous surfaces. It reacts with water and carbon dioxide in the air, forming an invisible and insoluble barrier. Tests have proven that this product maintains water repellency for five years and up to 10 years depending on traffic volume. It also controls the formation of efflorescence and spalling and is perfect for either outdoor or indoor use. This sealer may be used as a presealer or grout release on tile and masonry surfaces.

Virtually invisible
Blocks water absorption
Fast drying and long lasting
For interior and exterior use
No visible change to the surface
Easy to apply by brush or spray
Water cleans up
Solvent free and low odor
For use on colored and stamped concrete, manufactured and natural stone, brick, Mexican tile and slate
Also for use on exposed aggregate concrete and interlocking pavers
Not removable once installed