Can You Use Vaseline as Flux? Yes, Vaseline works just as well as commercial flux, and you can even buy a generic brand. Petroleum jelly is primarily made from waxes and mineral oils so that it won't corrode your components. Plus, it cleans away the gunk and eliminates metal oxides that could compromise your bond.
If it is for lead-tin electronic soldering, the rosin flux inside the solder is mostly colophony (pine rosin). The same stuff used on violin bows, and that pitchers have it powdered in a bag. Mix it with 99% isopropyl alcohol to make a liquid.
A mixture of borax and ammonium chloride is used as a flux when welding iron and steel. It lowers the melting point of the unwanted iron oxide (scale), allowing it to run off. Borax is also mixed with water as a flux when soldering jewelry metals such as gold or silver.
I have been using 20 Mule Team Borax mixed with water as my only soldering flux for over 25 years and have never had a problem with it. I do use the finer gra.de commercial Borax as my flux for casting. out. It is just that it has a fairly high melting point at 1367F.
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The Trick to Exiting man Command: q Just press “q” key to quit out of a man page. Yes it is that easy, simply pressing “q” will exit out of the man command properly.