Fiberglass holding tanks, interior components and exterior trailer shells are repairable. It can be intimidating the first time you do it, but it isn't hard and the repairs are usually very strong when finished.
West Systems is a well-respected marine epoxy brand and their Fiberglass Boat Repair Kit offers the right epoxy, fiberglass cloth and fillers to complete repairs to cracks and holes, gelcoat blisters, de-laminated panels and more. Good detailed and illustrated instructions show novice or professional users how to make lasting repairs.
Each Fiberglass Repair Kit contains eight packets of West System 105 Resin and 205 Hardener, a 15" x 15" piece of fiberglass fabric, adhesive filler, fairing filler, glue brushes, mixing pots, a mixing stick, an application syringe, three pairs of protective gloves and illustrated instructions for completing a variety of common fiberglass repairs.
In addition to the materials in the kit, you may need one or more of the following: a small grinder/sander, drill with a few bits, scraper or chisel, a pair of scissors, a hand plane, a file, a wire brush, a hammer, 60 or 80-grit sand paper, 180-grit wet/dry sandpaper, lacquer thinner or acetone and paper towels.
All components are contained in a sturdy, resealable package that can be stored for additional later uses.