3 ms·

You don't really need "rosin flux", the idea is to remove oxidation, chloridric acid is what was used for tin soldering, "saturated" with zinc. https://en.wiki

by jaclaz 3y ago

You don't really need "rosin flux", the idea is to remove oxidation, chloridric acid is what was used for tin soldering, "saturated" with zinc. https://en.wikipedia.org/wiki/Zinc_chloride#As_a_metallurgical_flux https://en.wikipedia.org/wiki/Zinc_chloride#As_a_metallurgic... Though I have no idea if either can be found locally.

MisterTea 3y ago
> Though I have no idea if either can be found locally. Which is specifically why I mentioned rosin. Though any acid could likely be used so citric acid or something that could work as well.
- jaclaz 3y ago
  Yep, but I don't think that just acid is good enough. Choridric acid + Zinc was traditionally used in tin (but lead isn't so much different) soldering/brazing, particularly of copper and brass because the Zinc had some role in the chemical reaction, AFAIK.