1 Shot Efflorescence, Salt Stain, Remover, 1 Gal, by Bare Ground removes unsightly efflorescence, those ugly white stains the leach from brick, concrete and all masonry surfaces, and keeps it from coming back. Nothing looks worse than a beautiful brick chimney, wall, or bluestone walkway with white salt stains all over it. The white stain is cause by salt leaching out from the concrete or masonry product. This is naturally occurring but it doesn’t mean you have to live with it. Our fast-acting, water-based cleaner is used to remove this staining, efflorescence, from existing concrete and mansonry surfaces. Efflorescence Remover attacks Sodium Chloride deposits to make them easier to remove and keeps them from coming back. Protect your investment with One Shot Efflorescence Remover.