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/diy/ - Do-It-Yourself


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>> No.1614069 [View]
File: 15 KB, 355x355, violin-rosin.jpg [View same] [iqdb] [saucenao] [google] [report]

https://yarchive.net/metal/soldering_flux.html -- about acid, read the whole text
Short excerpt for the fluxophiles:
"If you need some extra rosin flux, go to a music store and buy a block of rosin like those used by violin players. Ask for the oldest, dried-out block which should make the store owner happy (the musicians prefer the soft, sticky ones). Dissolve as much of this as you can in a small glass bottle containing acetone. Remember acetone is VERY flammable. But it evaporates quickly leaving the rosin behind, ready for soldering. One block will normally last a lifetime."

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