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[Agro]

I recommend bismuth based solder for thermally tough joints. But watch for fakes:

XINHONGXIN XHX QY-309Bi SnBi solder paste - real!

After buying 2 “Sn42Bi58” wires (Mechanic, UYUE) which turned out to be fake I tried again. There was no other wire, so I bought a paste. [image] I run an experiment: On the tip of my iron I put 2 blobs of solder paste, Mechanic SnPb and Auchans SnBi. I turned the iron on with the lowest temperature setting - 200 C. Expected result: Once the tip is heated both pastes are melted. Auchans is melted way quicker. Actual result: Once the iron stops heating neither paste is melted. But if I ke…