AQUA-X1 Gallon 11 Clear, Penetrating Stone and Concrete Sealer - Professional Grade

TL:DR - This product lives up to its 5 star reviews - Very happy customer.I had recently had a patio poured in my backyard and decided to finish it with a concrete stain. The stain manufacturer suggests sealing the concrete to enhance the color and protect the finish, so that began my search for a high-quality sealer that would be reasonably priced and easy to apply. Some of these products required approx. 4-10 gallons for 1000 sqft of coverage and most of them were way too expensive. When I stumbled upon this gem (no reviews at the time I purchased) with 600 sqft of coverage per gallon for $50 I figured it was worth a shot and bought 2 gallons.The sealer arrived when promised, and while I was excited to try it out I will admit I was becoming a bit more skeptical; how can this product achieve in 2 gallons what it takes another product do achieve in 10? I decided to give their customer service all call and was greeted with a recording to leave a message. Not expecting to get a call back, I opted to hang up and call back at a later time hoping to get a live rep on the phone. To my surprise someone from Black Diamond had immediately called me back and was ready to address my concerns. After explaining that this would be applied to freshly poured concrete with a stain, she said the coverage rate would be closer to 500 sqft (I was honestly thinking it would be much, much less). Satisfied with her answer, I was ready to move forward with my project.To apply this sealer is very simple; pour into a pump sprayer and get to work. The 2 gallons were just enough to cover my entire patio with a little left over (spot on, customer service lady). After it’s applied the product disappears on the concrete so I was concerned I might not have put enough on. To my surprise it worked like a charm, beading up water sprayed with a hose. As an added bonus, even a burst lantern filled with citronella was no match for this stuff - the oil rinsed right off in the rain leaving no visible stain.All-in-all I am overly impressed with this product and the customer service that comes with it. I highly recommend and would definitely purchase again.

My driveway has been unsealed for at least the last fifteen years that I have lived in my house. Got the driveway power washed at the beginning of the Florida winter. Let it dry for a couple days. Used my sprayer, it went down quickly. The quart just barely covered my two car driveway. Water beads on to top of the concrete now and I can quickly see it will protect the driveway from water, algae, staining. Will most likely get another quart and squirt again next year. Also plan to seal my sidewalks, pavers and pool area. Happy so far.

I apply this with a garden sprayer and the coverage is as advertised.

Do not saturate the surface! I followed the instructions and after calculating the square footage I found that 2 gallons should be enough to cover. I used a one gallon sprayer and as I wad was applying it didn't appear that it was covering sufficiently. I continued to spray conservatively and I'm glad I did because when I finished I had zero product left. Because it goes down clear it's very misleading. After it dried however I took a hose to it and the water beads up like it can't possibly penetrate to the cement. It's been a couple of months now with typical Florida afternoon monsoons and the driveway still looks great. I hope it lasts as long as they claim.

Product was easy to use. I applied it to my patio exposed concrete. I will give an update on how long it lasts.I applied it with a pump sprayer and rolled out where it puddled as instructions suggested.Did not get any indication of foul odors like other sealers I have used. It did take longer than 24 hours to completely dry. It may have been because I coated it a second time, which they suggest is not needed. It felt a bit sticky for several days until I put furniture back on it. But now that it is dry it is a nice clean natural look I was looking for.