Rust-Oleum301012 Concrete Patch & Repair, 24 oz, Gray

This product was great. It was rather easy to mix, fill, and level out. I used it before doing my rock solid garage concrete flooring, and it did a great job filling cracks. I would recommend picking up some quikrete concrete repair and filling large holes or cracks first, once they cure, grind them smooth, and then go over the top of them with this. This rustoleum crack filler was great for sealing in the quickrete, and filling in cracks. It sanded down nicely and easily to get rid of the raised edge from application. I used a soft applicator, an old auto body filler type one to mix, and apply. That worked well for scraping most access off and also being flexible around areas that weren’t exactly level. After sanding this product down, and applying the rock solid polycuramine floor coat, I couldn’t see this product through it. In reviews, and videos that you can, I think they either didn’t sand it or maybe didn’t apply the floor coat thick enough. I used the light gray floor coat kit, this stuff applies gray, so could also be part of why you can’t see it. Overall I am very satisfied. I have plenty left over also so I can help friends with their garages now that they have seen how mine turned out. I recommend only mixing a little at a time. If you run out you can just simply mix more. I used 1 popsicle sticks per container to grab it out and the soft applicator to mix and finally apply it. I wouldn’t recommend using a hard putty knife and grabbing some out of one can, and dipping into the next with a dirty knife and mixing it like that. I saw that on several videos. When you go back to use it in the future I’d imagine there will be rocks or something of activated material mixed in. The packaging says this can also be used to help anchor in screws into masonry, so I will be saving this as a future tool/ trick to help get a job done. Take care of your product and Itl be there to serve again!

Fantastic. Dries fast so only mix 1/2 at a time. Easy to mix and use. I used a putty knife for my 1-2’ wide cracks. Happy with it just wish there was more for the dollar.

No complaints except a third pouch would have been preferred for it to not be too thin in spots.

Worked really well for filling small cracks in my garage floor before painting . It does take a little longer to cure in colder temps. Sand smooth with a flap disk on a grinder!

I decided to clean, patch and stain my boring front porch when I re- made my porch this summer. It had a lot of cracks. I took all the concrete patch products in Lowes, chose a nice patio furniture display to sit and I read them all. I chose the Rustoleum. It's easy to work with and it dries rock hard. I mixed it in small batches because it dries in about 20 minutes. Once it's dry it's harder than the concrete. I sanded the seams down flat using a grinder with a sanding disc. I am really happy with how it turned out. I ended up painting the seams, they are now part of the final result. I wanted a turquoise stone look. So I used the patched seams in the design. I was then asked to repair the cracks in a neighbors very large, very cracked front porch floor. That also came out great, and those were bad cracks. I've used 3 boxes of this concrete patch, it's well worth the cost.

This epoxy crack filler dries much harder than any concrete product. It goes a long way when filling cracks. It’s ideal for cracked filling before applying epoxy paint.

This product works as described. Simply follow the basic directions, and it goes on easy. I found that within 24 hours it was fully hardened and ready to paint. You may have to work it a few times to get it down smooth and level with the floor surfaces.

I just got around to using this product and below are my comments. In summary, if I could return it, I would since it does not work well to repair concrete. I would recommend Quickcrete instead...Pros:1. The package comes in two plastic containers; it is basically an Epoxy with a Base and a Hardener. Base is 16 Oz and Hardener is 8 oz as your mix 2 base and 1 hardener. Strange that it is not 1-1 mix.2. Price seemed reasonable. but now I get it why (see below).Cons:1. The mixing was easy, but the application of the material on the concrete was a mess! The epoxy does not stick to the bare concrete. It seems that it lacks sand? I had to apply a whole lot of the Gui slur so it will cover the holes (see pictures above). The patch work looks terrible...2. After I applied the epoxy, I wanted to smooth it with the spatula, and the Gui stuff only opened up new "holes", the stuff does NOT spread like cement does.3. On deeper holes, the Gui stuff setts in and needs a double application, not the best way to patch cement holes in one pass like you do with real cement.4. Finally, cleaning is with the nasty chemicals, the least toxic is Alcohol, and it takes off the Gui mess, but you need a rag. Also, when dry, the color does not look like concrete, and I hope I can paint over it since the repair looks awful, like a plastic that shines.All in all, I would not recommend this product for fixing cracks or holes on concrete. I had to get Quickcrete to finish the job. I hope this helps.