Waterstopper S-5 is a ready to use, penetrating, colorless, non-yellowing, breathable water repellent sealant designed primarily for application to brick and block masonry, in addition to natural stone, concrete, and cement based grouts.

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Waterstopper S-20 is a ready to use, penetrating, colorless, non-yellowing, and breathable concrete and masonry siloxane based water repellent treatment compound.

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