Zinsser 306607 Mildewcide Additive, Liquid, Clear, 1 gal

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Watertite® clear mold and mildewproof waterproofing paint forms an impermeable, smooth, non-pigmented barrier to water on bare masonry wall and floor surfaces. Intended for use on interior or exterior, vertical or horizontal, concrete block and cast-in-place concrete. Backed by a five years waterproof guarantee and mold and mildew proof paint film guarantee, it can be used to stop moisture from entering or exiting a concrete surface.