i treat aluminum like a car body and use bondo first where needed to
fill lows or surround a spot for a patch and criss cross it before it sets up
giving me a surface to resin too and add fiberglass as a second layer if necessary.
Seals my leaks....! one day i'm out there and i see water
gurgling into the boat at too fast a rate ( a gash) so you know it's a losing battle.
so....
I went ashore tilted the boat and used a piece of peel and stick silver foil
tape (has unbelievable adherence qualities)and patched both sides and was back out fishing in 15 minutes.
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