StoneTech High Gloss Finishing Sealer for Natural Stone, Tile, Grout, 1-Gallon (3.785L) Two-in-one formula leaves a high sheen and protects against stains Water-based formula works great indoors to provide brilliant shines and deepen colors Protects against water and oil based stains Provides coverage for up to 300 sq ft. per gallon Recommended surfaces include: slate, textured limestone, textured travertine, concrete, saltillo tile, bluestone, sandstone, and flagstone