Custom Building Products TILELab Grout & Tile Sealer is an economical and easy-to-apply penetrating sealer designed to protect your surfaces from most common oil-based and water-based stains. Unlike other sealers, it leaves no difficult-to-remove residue, ensuring a clean and polished finish. This low odor, water-based formula is versatile, sealing Saltillo, terra cotta, quarry, and some porcelain tile, as well as grout, brick, concrete, masonry, and natural stone. Suitable for both interior and exterior use, it reliable protection while maintaining the natural beauty of your surfaces. Available in convenient bottle sizes, it covers up to 150 square feet per quart and up to 1000 square feet per gallon, with a shelf life of 24 months. Model Number: TLPS24Z