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Thanks DP, add sulphuric acid to the yellow bath and rinse the part in hydrochloric and distilled water just after it comes out of the electrolyte and before letting it swim in the yellow. I hope I restated that correctly.
I'm not interested in producing gloriously shiny parts, just parts that are clean and protected against rust. How much does the yellow zinc contribute to that? For my utilitarian purposes, I'm wondering if the yellowing step is worth the trouble.
Robert
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