JB Weld is tough as nails but doesn't stick well. With proper preparation it may stay.

Maybe you missed my point. TIG welding would be the repair method of choice if you could take the pan off and take it to someone who TIG welds. A good TIG welder costs more than three pans.

MIG welding is not like TIG welding and although when using inert gas it can weld Aluminum alloy it is a very poor way to do so as the electrode is also aluminum. It will deposit gobs of rod before hot enough to penetrate aluminum. Takes twice the power to weld aluminum as opposed to steel, even though it melts sooner and has a lower specific heat. Anyone know why?

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician