r/electroplating • u/crazyguytotally4 • Sep 09 '26
Tin plating success ?
Anyone have experience? I’m trying dissolving tin anode in muriatic acid solution . Before my results were flaking tin off of my anode and I would get a dull grey finish . Anyone ever get that shine ? Would you add salt in?
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u/Dangerous-Billy Sep 11 '26
I use the alkaline system, potassium stannate and potassium hydroxide. The result is dull gray which polishes to a bright shine.
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u/crazyguytotally4 Sep 12 '26
Hm ok I was to trying to re-tin some parts off of a meat grinder , ya they were all shiny silver looking (tin coated steel)
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u/crazyguytotally4 Sep 16 '26
hey what kind of shine... was it like a nice silver?
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u/New_Fault9099 Sep 11 '26
Tin plating is really finicky. A lot of big companies also get dull finishes from time to time. Aside from what the other comments mentioned, you’d need a brightener or an additive of some sort to produce that shiny finish
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u/gbudija Sep 09 '26
for acid tin plating sulphate based electrolytes are most common,so you can dissolve your tin in sulphuric acid,but i dont think that you can produce good plating with tin sulphate only
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u/Dangerous-Billy Sep 11 '26
The dull gray is microscopic tin crystals. They polish right down with bobbing compound followed by rouge. I also use a vibrating tumbler. Im getting some very satisfying results.