DIY Concrete Foundation Crack Repair Kit - Polyurethane Foam - Hairline to 1/16" Wide Cracks - Low-Pressure Injection Method (FLEXKIT-200)

I had over 10 basement leaks in our poured concrete basement walls. Some were addressed by the former owner but did not seem to keep the water out. One estimate was close to $30,000 to do extensive work. Another company wanted about $9,000 to strap the walls from the inside. Although I was a novice, I have had great success with this product. It fills the crack from the inside and the seal penetrates through the 8" thick wall to the outside. The seal looks like expanded foam but feels like rubber. I was a little messy at first but with experience, got better. There were 2 types of product, one is for regular cracks, the other is for hairline cracks. When some of the thinner material leaked past the seal of the caulk gun, I contacted the company by email and later on the phone. They were VERY helpful and spent over an hour talking to me. They also replaced the product that leaked past the caulk gun. From my experience, even the regular product made its way through the small cracks and that is probably what I would order if I needed more. Since I bought both products, I will repeat this review for both. Watch the Flexomeric video.

Amazing product!!!!! Does exactly what they say it does! Follow the directions. I used a hammer drill to put holes along the crack but you don’t have to. Can use the compound that you mix to seal the outside. It dries as hard as a rock! I suggest letting it dry for 24 hours before injecting the caulk. The kit provides everything from gloves to mixing sticks and everything in between. I mixed the compound on cardboard and just threw it away. Fantastic product. Would MOST DEFINITELY order again!!!! Fix the cracks with this stuff and be done. WELL WORTH THE MONEY VERY HIGH QUALITY PRODUCT!!!!!!!! Thank you!

This is the biggest waste of money since the pet rock. Not easy to use, messianic a complete was of money. I bought this for a hairline crack in my basement wall. It did not work so I moved on to a half inch crack I hadn't another wall thinking that maybe it would work on a larger crack. I follow the instructions to the letter and neither application worked. Severely disappointed.

Did the job, had a thin vertical crack that would leak a couple of gallons of water during a rain storm, now no water leaks. Recommend thoroughly sealing around the injection ports as they were areas I had leakage when injecting the poly.

Great product,easy to use, amazing crack filler. Will recommend.

Very easy to use, clear instructions, everything you need to fix a hairline crack. Works great!

This worked great and I haven't had a drop of water in my basement and we've had a ton of rain. I have a floor to ceiling crack in my basement walls. I did have to buy extra filler, but it was still sooooo much cheaper than having it fixed.

So far so good! The product appears to work. The crack is dry and the product is near perfect