Mapei UltraCare Enhancing Stone Sealer - Keep Your Grout and Stone Clean from Soap Scum and Hard Water Stains - 32oz Bottle Color Enhancing Penetrating Sealer: Will darken and rejuvenate the surface appearance of unsealed natural stones Protects Against Most Common Stains: Waterproof sealer/resealer that gives every stone their natural look Complete Your Renovation Need: Works well with Mapei Thinset, Resealer and others. And give your tile and grout a boost Easy to use: One-step process for color enhancement and sealing for interior and exterior applications Guaranteed To Keep Grouts Clean For A Long Time And Enjoy Risk Free Transaction - with Amazon A-Z Guarantee a full refund will be given if dont like our products.