Seal-Once Concrete & Masonry Waterproofer is the best solution available for all concrete and masonry sealing needs. Outlasts any other product on the market due to it's ability to penetrate deep into surfaces. This prevents mold & mildew, and makes cleaning surfaces even easier. Perfect for sidewalks, ramps, walls, pillars, and many many other areas.
We recommend cleaning surfaces prior to application, check out Concrete and Masonry Cleaner
