Paramotor Gas Tank Repair
2008-Aug-30 Permanent fix for PPG fuel
tanks | Thanks to Alex Varv
If your gas tank gets damaged, it's frequently almost impossible to
fix since no glue that we're aware of permanently adheres to the
Various epoxies, such as JB weld, can be used for a temporary repair.
Clean the glued area with brake cleaner and sand the surfaces to be
glued with 200 grit sandpaper (or similar). Mix the glue and hold the
glued surfaces together with weight or tape wrapped around the tank.
Glue repairs won't last, though. At least one pilot had
epoxy-repaired his tank only to have all the fuel leak out in his car
when the epoxy failed a day later.
Caution: You're working with a gas
tank. Before dealing with hot tools, especially those using propane,
make sure the gas tank is completely cleaned out and has no fumes!
Polypropylene plastic can be repaired through plastic welding. Alex
found that the material does not become brittle at the weld, or at least
not appreciably so.
If you have a welding tool, that obviously makes it easier, but it
can be done with a heat gun ($10
Harbor Freight) and hot knife ($25
Using the hot air gun, heat up the areas to be welded together until
they become clear and a little more. Then use the heat knife to fuse the
two pieces together.
This method can also be used for repairing the surround of fittings.
Thanks to Alex Varv for experimenting with this method and sharing it
with the community.
Chicago Electric Plastic Welding Kit with air motor
and temperature adjustment. Available from