A premium, no-sheen, enhanced-look 100% polymer-solid, penetrating sealer formulated to darken, enrich, and highlight the character and beauty of unsealed natural stone such as marble, granite, slate, limestone, travertine, quartzite, and sandstone. Rejuvenates the color and improves the appearance of worn and weathered stone. May also be used as a pre-grouting sealer. Allows moisture-vapor transmission. Effectively seals and darkens the color of grout joints. Effective for interior and exterior applications.