3M 20122 All Purpose Fiberglass Resin, 1 Quart

Bought this a couple of hours ago and used it immediately per instructions. Already setup and sandable. Excellent product!

I bought the kit to repair the floor in my fiberglass T.T. where a leak caused water damage and decayed the wood. I spent about a hour preparing the repair spot. I bought a second fiberglass mat to make sure I have enough to finish the job. The repair area is about 15in x 5in. in a crescent shape with a fiberglass lips on the shell that needs to be filled in. After cutting 3/4 of the included mat into smaller pieces and a few of the woven mat, I started the first layer. About 6-7 mixed layers of of resin then laying the mat in to fit and fill out the hole. Take your time preparing for the repair and plan it out, read the instructions. Follow the instructions on how to mix the resin and activator. (For first time users) I've used this multiple times over the decades, lessons learned are above. A few of the times I have tried to shortcut the process it's not worth it.