Quote:
Originally Posted by GroundUrMast
I have used a zinc based rod to successfully 'solder' cast aluminum. I had had a couple of sample packs of assorted soldering and brazing rod lying around for years and finally had a need to try a repair on aluminum. I think I had bought the rod at a Fred Meyer store more than ten years ago.
Copper will be far easier to solder... clean it well, use the right flux and enough heat.
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Even w/ that special aluminum rod that they sell at swap meets, I didn't have good luck w/ Aluminum.
The guys that sell it, make it look so easy.
I've always viewed Aluminum as just an unfriendly all around metal, that doesn't play well w/ others.
Zn, Sn, Ag, Pb and Ni, are much friendlier.