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CS-PS is a fully penetrating stain protector designed for interior concrete, stone and masonry surfaces. This product provides a protective barrier that resists staining and creates an easy-to-clean surface. It seals, and repels while maintaining breathability and will not alter the appearance of the substrate. CS-PS utilizes the benefits of lithium silicate for superior stain protection. This penetrating sealer produces a water repellent, less porous surface and may help keep out aggressive salts, such as chlorides and sulfates. CS-PS may be used at the end of the polishing process in place of traditional film-forming guard products.