Qt, ready to use, marble, travertine, limestone & slate cleaner & resealer, everyday cleaner formulated to effectively clean & maintain the natural beauty of your stone, contains an aqua mix sealer in its formulation to reseal as it cleans, applying a thin coat of sealer every time you clean. Its formula is non-acidic so it will not harm your stone or grout, cuts through grease, dirt & grime while inhibiting the growth of mold & mildew.