ARDEX Heavy Duty Impregnating Tile & Stone Sealer is a solvent-based, deep penetrating protective sealer specially developed for natural stone and porous stone surfaces. It is designed to reduce water absorption, improve stain resistance, and enhance the natural appearance of stone with a rich wet-look finish while still allowing the substrate to breathe. The product penetrates beneath the surface to provide long-lasting protection without forming a heavy surface film, making it suitable for interior and exterior applications.