Polygem Liquid Concrete Repair (LCR) Kit Penetrating Injection Epoxy for Foundation & Concrete Crack Repair & Leak Prevention DIY Complete Kit Repairs Average Concrete Foundation Crack of 8 feet

Structural repair not a water sealant

Product worked as advertised mostly. One tube's mixer did not separate from the foil which made mixing hard, but not impossible. FYI, of this happens do not push hard enough to dislodge the bottom, this is what some other reviewers are complaining about, but it's avoidable. Watch the how to vids on YouTube. Some helpful tips, since if you're reading reviews you likely haven't done this much: 1. Be very thorough in putting the epoxy around the injector base. Use more than you think you need, you should have plenty of epoxy. 2. Use nails to position the injectors against the crack, as they tend to move if you are not careful and might get blocked by epoxy. 3. Have a quickset epoxy on hand before injecting in case you find any holes in your epoxy job. 4. Use very little pressure, and watch the tiny bubbles in the nozzle to see if it's still flowing in. If it is not, it's likely the injector is blocked. 5. Put down some sheets or cardboard, as you will likely leak the resin at some point unless you are very practiced. 6. Each tube handles about 4 feet, but the kit only comes with 6 injectors. Where the crack is wider, you can put them much further apart than 8 to 12 inches as recommended. You can always order more injectors, but I doubt you really need them. Frankly if you need more than two tubes of resin, your crack is likely too big for this repair and you need a professional.

If you follow the instructions, it works quickly and well. I was able to install 24 linear feet in an hour/1.5 hours. Allowed it to cure for 12 hours. Injected to thinner epoxy 12 hours later. Finished that process in less than an hour. Couple suggestions: make sure you cover over the crack thoroughly so you don't have leakage, when mixing the injectable epoxy, mixing the tube takes some finess to break the aluminum barrier and the screw in the mixer in the tube. Good luck!

Use my experience as part of the instructions to save yourself a headache! My first attempt failed with this product…..it was 100% my fault. My project was going great, the sealer that is applied first went on fine. It cured as expected. My failure was not sealing the crack fully at the bottom edge. I didn’t pay enough attention to this as I read the reviews stating the product was very thick. It is not thick, it flows easily through the cracked concrete and right out the hole I left at the bottom edge! I put $100 worth of epoxy into the crack and 75% of it ended up on my floor. Again….my error. The kit is great…..I will order another and repair my failure as technically I can see this will be a perfect repair process! The pool of epoxy on my floor is hard as can be….imagine how good it would be if I did it right and that cured epoxy was in my crack!

One review on here complains of the tube blowing out the back and all over his bench. Most likely he was not mixing correctly and not holding the tube firmly enough to a solid surface. You can reseat the bottom if you see it coming out by pressing down. He went on to say that when he did start injecting, the epoxy came out of part of the port and leaked onto the floor and therefore the product is broke. The product was not broke, instead, he failed to properly seat, seal, or allow it to cure, and the problem was with his prep work. The epoxy paste that beds the injection ports and seals the crack surface takes 12 hours to cure before you can inject. Its the reason I only give this 4 stars. There are other brands that have a quicker set up time for this step, which is important, especially if you have dug the exterior of the foundation or if rain is coming. My point is, this system works well for cost v quality, (Ive used 3 of these myself) but you will need some knowledge and/or skill to successfully complete this type of job no matter what brand you use.