DIY Boat repair: Today we are doing Aluminum welding, aluminum soldering, or more technically aluminum brazing some holes in the bottom of a vintage Grumman canoe. This aluminum boat has been out in the elements for over 50 years and the salty air has done a bit of damage. We need to do a vintage canoe restoration.We will do aluminum welding or aluminum brazing to patch some old leaks. It's aluminum solder in a sense. This repair is better than epoxies like JB weld because it bonds to the metal and doesn't degrade in the sun.

First clean the area of paint, oxidation and other debris with an aggressive stainless steel wire wheel on an angle grinder. We then use Blue Demon BDTP12501T Triple Play Low Temp AluminumZinc Brazing Rod 1/8" x 18" and heat it with a Bernzomatic Map gas torch. This rod may be similar to Alumaloy, Super Alloy, or other multi metal rods for aluminum repair. The metal heats up and the rod melts in and flows and pools much like solder.
The repairs can be left alone or ground flush as desired. I will be coating them with aluminum paint to protect and match the rest of the boat.
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