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Plain not working...Started with sand blasted metal and nothing. So I tried scrubbing with some citric crystals to clean it and copper started showing. Put it in the bath and the copper went away...confused...
I'm going to be doing a bunch of carburator linkages, they are mild steel.Does the nickel bond better if I copper plate first?
What about citric acid? It smells nice, takes up less space than vinegar (pellet form) and is just as safe. You can vary the acidity based on concentration (pellet form) and its more conductive than vinegar so salt is not needed. In theory the finished product should should leave cleaner pores in both the base metal and the plating for a more durable finish that is less susceptible to corrosion.