Also, how do you fix a crack in a plastic gas tank?
How to Repair Cracks in a Plastic Gas Tank
- Use the sandpaper to sand the area around the crack. This helps to make the area smooth by removing jagged edges.
- Cut your fiberglass cloth into a swatch large enough to cover the hole or crack in your tank.
- Use an epoxy solution.
- Leave the tank with the epoxy alone for 20 to 30 minutes.
Subsequently, question is, can I use JB Weld on a plastic gas tank?
A: When fully cured, J-B Weld is completely resistant to water, gasoline, and about every other petroleum product or automotive chemical. For wet-surface or submerged water or gasoline repairs, see our J-B Stik or Waterweld product information.
To seal a plastic gas tank with epoxy glue, start by draining the tank and letting it dry. Then, sand the area around the hole or crack with coarse grit sandpaper, and clean it with a cloth soaked in rubbing alcohol. Next, mix the epoxy glue, apply it over the opening, and press a fiberglass patch over the epoxy.