Good tip. Under no circumstances should you attempt to solder aluminum with it, including aluminum foil. You get 1 good joint per tip, then you have to buy a new tip. The aluminum literally strips the durable tin coating from the end of this tip, rendering it useless. I could only retain it with tinned connection but it doesn't last long. The permanent tinning of the tip will be destroyed and the tip cannot be restored. And since the permanent tinning is sucked off at the first aluminum joint, the second aluminum joint doesn't work either. It's made for. I'm sure I can find caustic aluminum flux somewhere, and it probably is. What I need to do for the future is just use my ruined tip as a junk tip for aluminum soldering.
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