Concrete Acid StainSemi-Transparent Professional Grade Cement Stain (Black Walnut, 1 Gallon)

I used this on a polished concrete slab below a woodstove. I had to get a second color to achieve the exact look desired, but the final result is stunning. I wanted to pick up the colors of the natural stone wall behind the stove as well as some of the tone in the wood floor in the room. With a little experimenting I got exactly what I wanted. The result is a variegated natural looking effect that draws positive comments from visitors who often express complete surprise that it is actually concrete. The color has a lot of depth and changes subtly in different lighting, the effect is fantastic.This is a true stain, it can't be scratched off like a paint and the color is deep into the concrete. Directions were sparse but a quick call to the manufacturer found a company with friendly staff who were very happy to help and offer advice on using their products. Excellent service.Keep in mind that the actual concrete mix will have a large effect on the final color, so what you see in the picture may not be exactly what you wind up with. This is the nature of this type of stain and not negative comment on the product - just something to be aware of. The chemicals in the stain "react" with the concrete to give the color - a small variation in the mix or sand type etc. will change the final result - not that you will end up with blue when you ordered red - but the shading and tone may be different. You may need to experiment a bit to get what you want - but the end result is worth the effort.I used this and the "Mountain Road" color together - The colors by themselves have variations in their tones, but I blotted some extra of the two colors on in a few areas to vary the darkness a bit and give it a more visually interesting pattern.

I saw beautiful pictures online but was skeptical if i could actually use it. It is super easy to use. This is NOT gel like, but very thin and watery. I was able to use a squeegie to move it around some though but had to move quickly to do that before it soaked in and dried. I did make some splashes but thats ok because we have to paint anyway. It is a good bit of product, but a little more pricey than other brands. It comes out yellow and gradually moves to a more rusty color. Blended beautifully with an acrylic paint mixture i made to create the green/blue color. I had quite a bit of stuck on glue left after removing old green carpet. I was hoping this might dye it a little but it doesn't so be aware of that. Excellent product! 5 out of 5. Am purchasing again to complete my entire hone & outdoor areas.

After doing hours of research to find a product that I thought would work for my application, I bought and applied this product as directed to a freshly poured concrete pad (I actually waited 30-days after it was poured to be sure it was set). I applied it diluted first, and then went back and added more for color variation. I finalized it with a neutralizer. I followed all directions. I’m disappointed in the outcome because the color is slugging off like chalk to the point that even waking on it a week later is taking the color off down to the original concrete. It seems to have just left a chalky residue and the surface and didn’t permeate into the concrete. I’m going to have to strip all 600 sq ft and refinish with something else. So bummed to have wasted the money on this. I contacted the company about this before leaving my review to give them a chance to rectify the issue and they basically blew me off. I do not recommend using this product for any long lasting concrete coloring.

I don't know if this product reacted badly with the previous acid stain that I put on 10 years ago, but all sorts of problems occurred. White streaks and light with dark colors appeared after I did the final neutralizing. I had to reclean and used a water based product that covered and has worked well. I've been told by local suppliers that the acid stain can cause problems on older concrete and previous stained concrete.

Works as intended

I would say this product works great.

Black walnut, defiantly dark. If you're looking for dark brown almost black this is it. seems to continue working for hours after applying. results will be different on different types of concrete.

I bought this stain to make up for the rest of the square footage I needed for my concrete walkway (I had purchase three bottles from another company, as well). My total project was 74 SF. I needed enough stain for another 40 SF. The description on this stain says it covers 13-63 SF. I figured this should cover somewhere in the middle of that. I was wrong! This 16 oz. bottle only covered about 13-15 SF! Subsequently, I ran out of stain and was forced to search far and wide to get more quickly (which wasn't quick enough) and had to buy 2 more gallons that I didn't need and that were different colors. Of course, adding stain to dry stain makes it impossible to blend colors and also removes other stain. Therefore, I have a horribly disgusting walkway that could win an ugly walkway contest in a heartbeat! Moreover, the color isn't even close to what you see on your computer screen. I got the Mountain Road which is supposed to look like a sort of beige with amber tones. It was dark brown. :(