Soldering flux is (or at least, should be) one of the ubiquitous features of any electronics bench. It serves the purpose of excluding oxygen from a solder joint as it solidifies, and in most ...

Kester 24-6040-0027 - (1) Spool, 1 Pound per Spool Diameter: 0.031" Inch (0.80mm) Alloy: 60% Tin / 40% Lead (Product contains Halogen) Core / Flux Type: Rosin Core / 44 Flux (3.3%) Authentic ...

Many solders contain a rosin core, which aids in cleaning the ... To avoid this, use a rosin flux on the wire strands you ...

In the FoTW case I was worried I’d overheated the joints causing them to go bad, evaporating the flux and oxidising the solder. This was disputed by some commenters, but left me with some ...