Siloxa-Tek 8500 Ultra Concentrate - 1 Gallon (Makes 5 GALLONS) Penetrating Concrete Sealer Water and Salt Repellent. Clear Water-Based DOT Approved Silane/Siloxane for Concrete Brick Masonry & Pavers

Summary: this is a great product, worth the effort and expense if you need to protect your concrete from chemical exposure or water absorpsion.It's easy to apply by a pump up sprayer, brush, roller, sponge, or whatever you prefer. I had some puddling of the product, from over application, and a broom worked great for redistribution.For my new, 4 month old, broom finished concrete, it took substantially less product than the general recommendation. Note that it does state 'porosity' of what your applying it to is the main factor regarding coverage rate. i.e. your mileage will vary!It's important to follow the directions and apply a second coat while the first coat is still wet. More on that below. Naturally, the second coat required less product than the first.I can barely see a difference in the look of my concrete after application... until it's wet, which causes beading and considerable resistance to absorpsion.I treated another concrete pad the following day and sprayed some of the leftover product on a small portion of the previously treated concrete (pool deck) and immediately noticed puddling and lack of absorpsion.Only time will tell how long the protection will last for my pool deck. If I get 5+ years before needing to reapply, then it's well worth it.

Used to treat a large stone chimney that was soaking in so much water that the inside mantle was after moist to the touch. Now the water beads off and I haven't had moisture inside since. It was simple and easy to spray on. It's been 6 months and so far it's holding up well.

This product works!!!!! It works on concrete and stone. Period end!!! We put this on our Tennessee field stone coping around our pool. Our issue was the fieldstone will flake off if water gets under the layers. I wish I knew that before using it as coping around my pool. We used the stone on the fireplace which is on the patio as well to match. Anyways, the water just beads up like the picture shows. This is about 9 months later so I can not attest to the longevity of it but here is the deal. I got a gallon of the concentrated stuff to make 5 gallons. I mixed it in a 5 gallon bucket from Lowes. I did three coats around a 18 x 36 pool and a hot tub and I still have 4 gallons left. I used a paint roller and my wife got in the Pool and put the stuff on the edges. We used a big container lid in the Pool to catch the drippings that fell. No question it was a 2 person job for a pool. Now the down side is....we were not quite as detailed on the edges on the concrete.......well it works there too! You do notice the color difference on the concrete when it rains....it's whiter. But zero difference when it's not wet. BTW no color difference on the stone at all. However be sure not allow it to dry between coats. It will give a cloudy look to the stone dry or wet.If you want to seal stone or concrete. This is the stuff!!!!

We'll see if it lasts anywhere near the advertised 5 years, but initial indicators are positive! Mixed this product with Black Diamond Color Ehancer (@ 12.75 oz. per gal.) to bring back some fading to brick pavers.

4 year old concrete. Last year irrigation system was added. Noticed light browning on the edges. Iron deposits oxidizing on the surface. Decided to clean and seal.Borders were cleaned with white ox applied by pump sprayer with fan nozzle. You could see it attack the iron. But without acid.Next otc product called ZEP was used to wash everything. This was also sprayed on. But power washed and scrubbed lightly with a shop broom. And rinsed clean.Surface was able to dry for 48 hours of 70+degree weather and then THIS PRODUCT was applied.Mixed well in a 5 gallon bucket i added 1 gallon of water at a time until i had added just under 4 gallons to the bucket. Giving a total product volume of 4.9 gallons. This was used to fill the same pump sprayer. And the product was applied in overlapping passes with the sprayer. As soon as it began to dry a second pass was given. So the coating was very even.I do not see any color change to the cleaned concrete. I didn't clean it perfect but it's close. Will review again if product lasts 1 year. I'm hoping for more.Photos show a rain shower 36 hours after the product was applied.

VERY simple to apply, and dries quickly.After power-washing, I resealed a 5-yr old driveway & front walk. I used the gallon concentrate (makes 5-gal) and it was really easy to mix. I planned to use standard garden sprayer (which would have been perfect for the viscosity of Ghostshield 8500) but I chose to use a roller to prevent overspray. Directions say 5-gal will cover 1,200 square feet with 2 coats applied as directed. I found this to be pretty accurate.I just applied yesterday and it hasn't rained yet, so I can't rate the water resistence or longetivity yet.However, I can add one add'l comment...Though it appears to dry quickly, Ghostshield recommends protecting application from rain for 24 hrs. In either case, when it appears dry, there's absolutely no change to the color or appearance of the concrete; a great result, since we like the original appearance didn't want it to darken after sealing. Ghostshield truly lives up to it's name.Also, worried about applying Ghostshield and having leaves stick to the concrete? (Like it or not, it's that time of year again.) Well, don't be! Ghostshield penetrates pores of the concrete to seal, it's not a sticky top-coat.

Product was easy to use. Be sure to apply on a cool, preferably cloudy day to keep it from drying too quickly before applying the second coat. It took two days before water beaded on driveway, but now seems fine.