Review on 3M Large Hole Repair, 12 oz. High Strength by Brad Knierim

This thing has actually become a "miracle cure" for me in several projects. I will illustrate one such case. I was replacing a bathroom faucet and found a giant fist-sized handle embedded in the drywall behind the old faucet. The new bracket is narrower, so I had to close the hole somehow. I didn't have a feeding net, so I filled the hole as much as possible, being careful not to drop it in the hole. I let it dry, they filled the rest of the hole. I'm kidding you, the material hardened as if it were part of the wall and was firmly in place. I drew it and you never thought there was a big hole.