Polygem LCR Epoxy Concrete Crack Repair Kit - Stops Leaks - High-Performance Structural Bonding - Professional Grade - Reliable & Effective - DIY Friendly - Versatile - Wood, Fiberglass, Metal & More

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!

This thing gets really hard. I followed the instructions and then added my own instructions. The packaging says no drilling, but if I use this again, I’m drilling a hole before I install the injection ports. I had a very difficult time trying to squeeze the heavy liquid into the tiny crack on my wall. I thought I did something wrong; but then as I moved up to where the crack was bigger, it got easier to push it in. My last injection port was sealed properly so the epoxy started oozing out of the side. Make sure the injection ports are covered and sealed properly before injecting the epoxy. Make sure there no gaps left uncovered. If you leave any open space when the epoxy can sip out, it’ll ruin the job. Clean the surface very well before applying the sealant. I dropped some of the epoxy on the floor and that’s how I know that it gets really hard. I had to use a clap to squeeze the caulking gun because my weak hands were not enough for the job. I ended up with blisters on my hands. I placed Brad nails inside the injection ports going through the crack. I should’ve used finishing nails instead. It would’ve probably made the job easier. Good luck!

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.

I read many reviews on this product and thought that the good outweighed the bad... I was sorely mistaken as when it arrived it already showed signs of leakage on the box, when opened one of the epoxy tubes had leaked. I thought it didn't look that bad and proceeded to prep my concrete wall for the use of this product. got the application pieces attached with the crack sealer and proceeded to coat the crack base to ceiling and waited the allotted setting time prior to injecting the epoxy. opened the bag with the tube that looked like it had leaked and proceeded to follow the instructions for mixing, did not even get to the first push of the tube and the back exploded and all the epoxy shot out onto my work bench.. I did not have a large crack to seal so I figured I would have better luck with the one that didn't look like it had leaked. I proceeded to start mixing this one and on the 4-5th push of the tub it started to try and blow out. I managed to keep this one together long enough to finish mixing and relieve the pressure when I removed the mixing rod and attached the cap for injection. I managed to be able to at least start injecting with this tube and hope that it would span the crack I had... two pumps of the injection and the epoxy pushed out a portion of the injector port and started leaking on the floor... after a long 30 mins of trying to get this to work I pray that the epoxy that made it into the cracks expands and seals the crack enough that I do not have further issues... I would most defiantly not recommend this product as it appears to be poorly made...

My son used this product to fill a large crack that developed in my basement wall. It is a process and you need to follow instructions but it does the job and says it is harder than concrete. He did a great job on it and I painted it when he finished and it had dried. I recently bought another kit for a different place. It is well worth the money. Fix it once and be done!!