Re: Best way to join fiberglass back together
If this is joining two parts of the floor togeather you will want to grind back both sides to be attached about 4 to 6 inches on both sides, then mount some cleats made out of plywood 1/2" or 3/4" inch to the underside of the floor in the boat already. I would go a step further with the cleats and before mounting them, prime them with resin to waterproof them better. The cleat will create a shelf for the old floor to rest on. You can use a mixture of resin and cabosil to create a putty to mount the cleats to the underside of the existing floor, use a few screws to hold the cleats in place through the top of the deck while the putty dries. then place some putty on the cleats which the floor you are joining to will rest. Drop the joining floor in, you can screw it down to get a good bond. After the putty is dried, you can bo back and remove the screws. You should have two floor joined and fairly level with about 4 inches on either side of the joint grinded back. You will want to build up the grinded back area with 1.5oz matt in wider and wider lengths....after you have got it level with the existing floor you should have a strong joint to come back with filler, sanding, prime and gelcoat.