Sikadur Crack Fix Low-Viscosity High-Strength Epoxy Resin Adhesive 6oz

Some years back, I read about a concrete repair epoxy that was designed to be used by the military to fix cracks in bombed runways. The stuff was so runny that it permeated the concrete, binding together the crack back to better than original strength. And, fast curing too so that the runway could be returned to service ASAP. I tried to buy it, but found that it was available only to contractors. Then, a few years later, I found Sikadur Crack Fix in Home Depot. The description and performance looked like it would do the same thing, so I bought it. I had several large cracks in my garage floor caused by improperly mixed concrete causing non-uniform expansion. The crack had grown over several years after being poured over my original floor to bring it up to the height of the rest of the house. The concrete on one side of the crack was good, on the other side rotten, resulting in disintegration and wholesale gravel and dirt which was getting tracked into the house. The Crack Fix did an outstanding job filling the crack. Three years later, it was still holding with no additional cracks, and no growth in the existing cracks. But, the problem with the disintegration remained. I bought some more Crack Fix, and this time painted it onto the area with the disintegration. So far, it has stabilized the concrete surface wonderfully. When I walk on it, no more sand and gravel comes up. You can feel the difference. Clean garage, clean house. We keep our cars in the garage too. No more disintegration from the cars either. You do have to make sure that the stuff is in date. It will harden on it's own, like any epoxy, with age. And, be careful what you buy. When you search on the web for Sikadur Crack Fix, some of the hits you get will actually be a one part air dry filler. That is an excellent product too; I have used it. But, it is not the same and will not have the strength properties of the actual Sikadur Crack Fix.

Don’t believe the negativity in some comments as people ordering this product don’t know what they ordered. The viscosity of this product will be extremely thin meaning it’s going to get deep into the cracks as if water would. People seem to dislike that thinking the product is thicker. It is super strong and I have used to fix several surface cracks on pool copings and cement cracks that are not too deep, this is one of the best and strongest for the money. Be sure to research and watch videos on how to use so you know how to use it correctly without wasting product and getting mad because you didn’t apply it correctly. If applied correctly it is very easy to use.

Works well my neighbor recommended it

I had an unusual situation where my cement board underlayment had separated from the subfloor in some locations and there was movement that caused cracked tiles and also made the grout come out of some joints. All the pros said I would have to tear up the entire 200 square feet of tile plus the underlayment and replace it all. This product was recommended by a flooring representative I met at a seminar. The product is not specifically recommended for this application and nobody would guarantee the end result but we removed the grout and the loose and broken tiles. The installers drilled through the cement board underlayment and injected the Sika product. They replaced the tiles and regrouted the tile. It's been about a month and so far the problems seem to have been solved. I guess time will tell but this was a creative and economical solution to what could have been a very expensive problem.

This is actually a great product for fixing cracks in your cement floor. Problem with this order was the product had an expiration date of over 2 years ago. Didn't realize this until after applying to the cracks. Did not cure as supposed to. What a mess to clean up. I emailed sender to find out why??? or... do they have anymore (with-in expiration date)? Never heard back! Good thing was, my account was credited back the amount I paid. To bad for my time and effort to clean up the problem. Sika's products are awesome but...the product shouldn't be Sold, packaged and shipped past their expiration date!

Similar to the other reviewer, I ordered this only to find it had expired 1 month ago (from ace hardware outlet). Luckily, I noticed before using it and sent it back. My account was credited for a full refund including shipping, so thanks Amazon, but find another supplier for this product so that people purchasing it can actually use it.

I am giving this product three stars. I ordered it and gave them to another person for their use. They never got back to me about it. So, I am guessing they are satisfied with it. I have no idea about the quality of this product. But, it is a heck of a lot more expensive now-than when I ordered it. Apparently the only way to clear this off my review purchases page is to review it. Again, I do not know if it is a great product or a not so great product. I personally did not use it. I am just trying to clear this review page up.

Product seems to really adhere to concrete and it does flow readily. Getting it to go and stay where you want it is a problem. Some instructions and or suggestions would have been nice. The volume is only 6 ounces and not 10 ounces. The plunger on the caulk gun stops about 2/3 of the way into the tube...apparently because of the internal storage device of hardener and resin.