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Old 04-16-2020, 05:53 AM
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Cardo Cardo is offline
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Join Date: Sep 2000
Location: Charlestown, In.
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I ended up using the formula that you said you use, the one that is in the link posted in post #81 above. I started out around .64 amp, and went up from there. Lower and slower is definitely better. Smaller thinner pieces seem to plate best around .60 amp, thicker heavier plates better around .80 - 1 amp. I plated several pieces, and toward the end of the day, I started getting some black sediment showing up on the edges, which comes off when brushing but i think i will mix a new solution (same formula) and start again. I tried higher amperages (up to 1.6 amp) and that is when the black started showing up. Some of it is starting to accumulate in the bottom of the bucket too. I think the higher amps may have "cooked" my solution somewhat. Prep - all pieces were glass beaded, dipped in the muratic acid solution, (200 ml acid to 4 liters water) till it stopped bubbling (5 - 10 minutes) rinsed in tap water, and straight into the plating. I plated all of those parts twice.

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