Rainguard Water Sealers Stone Sealer Spray, Penetrating Protection Against Moisture Damage and Stains, For All Stone Surfaces, Silane/Siloxane Waterproofer, Ready to Use, 16 oz

Works very well. I have a chimney that was built with fake, cemented on stone and rain water used to soak in andget behind it and causing efflorescence. Sprayed on Rain Guard and sealed it up. Worked real good. Sprayed it on again the following year and found it really didn't need another coat but did it anyway. Good product. Not cheap waxy stuff like Thompsons Water Seal.

We used it per the instructions on Beige travertine tile. So far it’s been a week exposed to the sun. We did get three rains and we noticed the water stays on top of the tile no saturation still too early to tell how it will wear. So far working as advertised. Was applied with a roller. No change in tile color.

Not impressed and have had to apply many coats and still not sealed

We had a leaking stone fireplace, and our mason suggested trying this product. He applied it per the instructions and so far, we have had several storms, and thankfully have not noticed any leaks. It appeared to be a relatively easy application for him to apply. He used a Craftsman battery sprayer to apply the product.

Been about 8 years since I have used a Silane/Siloxane Sealer, This Rain Guard Said it was concentrated and would make 2 gallons, after examining the liquid so called CONCENTRATE I determined it would barely make a good mix at 1 1/4 gallons which I mixed first and used. (Remember that this contains the silicon/silonox solids which draw into the material of whatever you spray) The solids content of this product is very watered down. The next day I mixed another concentrate bottle, I used only 1 gallon of water and still drew into the stone with marginal results. Will be lucky if it lasts 2 years. Save your money and buy a good concentrate-(Micro-seal Silane Siloxane Sealer), makes 5 gallons and still a lot better than this substandard sealer. This type of sealer draws in and dries clear, does not make it shiny and does not look like a acrylic top sealer.

I applied this to a tile job that consisted of a pre-sealed stone terrazzo tile and epoxy grout. This sealer kind of beaded up on the tile, but it soaked right into the grout. Previous to this the grout was just barely porous that water would trap in the joints and the stone would have a wet look. This sealed the grout lines, and no more water lines appear. Everything beads up and drains as it was supposed to. This product was a good price, and a great value as our tile folks were about to spend $2,000 tearing up the tile and doing it again to eliminate the porous tile spots.

Not ..that at all deep penetration

Met all expectations