Eco-Etch Pro, Concrete Etcher & Cleaner, Efflorescence Remover, Organic Concrete Acid, Phosphoric Acid, Muriatic Acid Alternative (1 Gallon)

Bought this for all the calcium build up on my bathroom tile grouts. Works like a charm. My dark brown grouting had gone white with mineralization. This got rid of it, all of it.

This product works! I could see it bringing the mineral deposits to the surface and foaming up. It took multiple rounds of spraying to get the deposits to completely break down but I was fine with that. I used this product indoors on a stamped concrete floor. It has no smell or at least not a strong one and does not burn the skin. It was hard to find a product that was recommended for the indoors that I felt comfortable putting around family and pets. I am so happy with the results.

I think it did a fair job of etching and cleaning basement floor. It certainly etched well and the odor was tolerable. My wet vacuum had some concrete dust in it so it worked. Concerns: they say it has a ph <1 but isn’t harmful to skin. I wore gloves and rubber boots along with painters overalls. The active ingredient is not listed. Not a concern for me, but would be important in an accidental poisoning incident. There should be a glued on seal under the cap. There was obviously some minor leakage during transport, although not enough to really complain about.

I have a colored concrete driveway that was poured just a week ahead of the cold winter temperatures setting in. Unfortunately, the efflorescence that formed created a terrible, splotchy appearance which almost completely negated the colored look which is what we paid extra to get. I tried a variety of products, some acids, some other efflorescence removers, etc. but this one was worth the money spent. It works exactly as the manufacturer claims. It foams like crazy when poured onto the surface of untreated concrete and definitely etches it. The one thing that it is not effective at doing is treating efflorescence that is covered with a sealer. The label clearly states this however. I have learned that I first have to take steps to remove the sealer that remains on the driveway and then use this product. Once that is done, the results are very good. I highly recommend this product.

The first gallon did just what it should do but the second left more white residue than what was on the brick to begin with. Now I just have a mess and am going to have to pay someone to come look at it and see why some bricks have more efflorescence than they did and why some grout came clean and some didn’t. I had someone helping me from the company, but he left for the weekend and I didn’t hear back on Mon, Tues or Wed. Of course it can’t be returned so I’m just out the money now.