There are several outfits out there that sell low temp aluminum
welding/brazing rods for use with propane or Mapp torches -- good for
aluminum props, ladders, etc. (Ex. www. durafix. com). As mentioned by
others, you have to fix the problem, and not just patch it.

wrote in message
oups.com...
Am looking for advice (theories) on fixing pinholes that have developed
in the pontoons of our 24-foot Escapade pontoon boat.
There are several areas involved, probably from electrolitic action.

Our plan of the moment is to drill out each pinhole and pop in an
aluminum rivet that's been dipped first in two-part epoxy.

Are there other good, better, best ways to deal with the problem?