![]() ![]() The color looks just like used motor oil black and smells right out of an old Ford work truck. Turns out that flux was and still is THE BEST stuff ever!!! It has the standard consistency found in those puck shaped flux paste containers found online but isnt golden in color. I had avoided using it for as long as I remember until one day when i got desperate. Has anyone herd of motor oil or a motor oil like substances being added to flux? I found this really old round tin of flux inside an old Weller Solder Gun box. ![]() Posted in chemistry hacks Tagged flux, rosin, solder, solder flux Post navigation We’re fans of needle bottles and asked about sourcing them in a previous post (linked in the paragraph above) so check that comments section if you don’t know where to get one. He recommends isopropyl alcohol as the solvent, and has stored the flux in a clear dropper bottle. Proportions are listed on his guide for light, medium, and heavy concoctions. But suggests that if you can find some from a hardware store it is better because the music store variety tends to be ‘molten’ and doesn’t work quite as well. We looked in on the same method quite recently where flux was sourced from a music store. ![]() The rosin being weighed in the image above, can be found from several sources. Only two ingredients are necessary to make your own liquid or paste flux: rosin and a solvent. According to - who sent in the tip and tried this method himself - is works well, it’s cheap, but you will need to clean up a bit after using it on a PCB. Wrote a guide for making your own rosin-based solder flux. ![]()
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