DAP 7079860500 Concrete Crack Filler, Gray

Got this to fill some cracks in my garage floor that extended out to the driveway slab. These cracks had been filled before using that self-leveling crack filler, but it was starting to fail.I used a grinder and flathead screwdriver to peel out the remaining old filler and then poured the powder in. I leveled using a putty knife and spritzed with water. Job done. This was in direct sunlight, so the material was fully hardened in less than an hour. I've since driven on it multiple times and i'm seeing no ill effects.I also used this on some spalling on my front steps. Initial results are very good. Color is off, but the patch is smooth and was very easy. This is not the recommended use for the product, so we'll see how this does over time.

I just discovered this a few weeks ago and am amazed. If I had a complaint it would be that its hard to dispense in a smaller amount without going overly both sides of a small crack. I've tried brushing it along the sides but you rally can't remove enough of the dust to make it more presentable. What I've ended up doing is using the bottom half a a larger syringe and kind of using it as a funnel to dispense just enough to cover the small cracks. After activating it with a mist and then waiting a day for it to harden, then going back over it with a rub brick to smooth it all out gives amazing results.

The usage is straightforward. Poke a hole on the spout just big enough for the sand-like filler material to go through, pour on the crack, then mist with some water and let dry. It’s like a magic cement in your pocket (the package itself is actually smaller like fits on the palm of your (big) hand. I used this for prepping our garage and I was able to cover 70% of all the holes in our 3 car garage in about an hour. What I don’t like is that the texture of the filler is not fine enough that I got some hairline cracks in our garage that it couldn’t fill (I’m planning on getting a liquid-based concrete repair kit that’s similarly priced that can fix those hairline cracks). Another thing is that any extra filler that does not fall into the crack holes balls up to bigger grains when misted and scraped. This unfortunately adds another step (buffing out the balled up grains from the garage floor, and cleaning thereafter). Had I known it beforehand, I would have gotten the liquid-based competitor to save a step. But I guess one positive from it is that it dries fairly quickly (a few hours like 4-5 should be okay for light foot traffic) and another thing I like as well is that the color closely matches the garage floor. I’m not that much concerned about its durability as I’m planning on coating the floor with paint and a top coat after anyway it should seal it good. It’s a bit expensive than others but does the job nonetheless I’m giving it 4 stars.

Fixed a huge crack in my driveway with this. Worked like a charm. Blends in nicely with the light grey colored concrete. Don’t use a lot of water to activate, only a spritz will do. Also recommend using a small brush to even out the powder before it dries. It looks a ton better that way. I’m a divorced single lady in her 40’s and was able to get the driveway fixed on my own with this. Highly recommend for ease of application and results.

Easy to use and it did great filling the crack in the garage cement. I hope it holds up and does what it was put down for. Time will tell . But will get this product again if it does well. Btw I had never filled in cracks or anything and it was very easy . Thank you

Looking forward to fixing 7 cracks will prepair properly i hope this works i will follow to the letter.

Works on cracks that’s aren’t too deep. Unfortunately ours were deeper and needed professional help, but where we applied, it held well. Easy to use, dries quickly.

This is a solid product, but I agree with some of the points made by others. It is a little grainy and it does not do fine cracks well.It does dry to be very durable and it blends in with existing concrete well.For those that are looking for finer powder to fill in small cracks and imperfections, consider using Rock-tite. It works well, but is whiter in color.I have a feeling that Rock-tite and this product could be mixed, but I haven't tried that yet .