I saw some people talking about the acidic fluxes, I couldn’t find that at my hardware store so I used some 80 grit sandpaper then muriatic acid to clean the surface of the key and ferrule. I put flux around the hole on the keg, clamped the ferrule to the keg and heated the keg (mostly) and ferrule but the solder wasn’t staying under the joint. It just rolls down to the edges of the keg. Do I need to order different flux? Or is there something else I’m doing wrong?
Edit: also it does appear the flux is evaporating before it gets hot enough to melt the solder. Could that be the issue?
Why is my silver solder not sticking at all to stainless?
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DeepSpaceGalileo
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Why is my silver solder not sticking at all to stainless?
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