I would be interested to know what the composition of the filler rod is, for it to work on aluminium as well as steel copper and brass. Having been in the mechanical trades, I'm familiar with most welding, brazing and soldering techniques including using aluminium filler rods to oxy weld aluminium but this seems to be something different.
If it works as well as it seems to it would be handy for some projects in the dreaming stage.
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