Zinsser WaterTite Etch & Cleaner - 12 oz

Zinsser WaterTite Etch & Cleaner prepares concrete and masonry for patching, painting or waterproofing by removing surface deposits that can interfere with adhesion. This concentrated sulfamic acid powder mixes with water to clean efflorescence and excess mortar from concrete, stone, brick and tile, while lightly etching concrete to help subsequent coatings penetrate and bond. It can also be used to clean galvanized metal when applied according to the label. The 12-ounce container makes approximately 1 gallon of cleaning solution at the recommended dilution, providing a practical preparation step before applying WaterTite coatings. Thoroughly rinse treated surfaces with clean water and allow them to dry completely before painting, following the product label for mixing, handling and surface suitability.