Aqua Pro is a water based impregnating sealer. It offers all the benefits of our Advanced Fluoropolymer Protectant in a water based formula. Protects against oil and water based staining. Aqua Pro is excellent for sealing granite, travertine, limestone, tile & grout, concrete and masonry surfaces. Non-yellowing and long-lasting. Will not change the appearance of your stone surface. Will not alter proper cure time on new grout.