Hi all. I need a little knowledge or maybe some guidance on fiberglass repair. I have a 1970 Avenger low profile ski boat. I noticed a soft spot today where the seats attatch to the floor. I took out the seats and used a dremmel to cut away the glass that was holding the frame to the floor. No damage to hull thank god. But, as you have all guessed the plywood under the carpet was like wet paper machet. Now to the fun part. I know how to do the woodwork to fix the floor and stringers, but I have never done fiberglass before. Any help on it would be greatly appreciated. Also where do I get the stuff?