Silvaspray
I am with you. The few times I have attempted Silvaspray under Flash copper it has been a blistering disaster. I suspect that the strong positive pH of the flash copper (around 10) makes it incompatible with paints. Most paints do not hold up in strong alkaline solutions. That is why lye was recommended as a paint stripper!!
Perhaps acid copper would be a better bet. Caswell once told me to try nickel plating over the Silvaspray, but I have not tried that yet. Makes sense; the nickel solution has a pH closer to 3.
Ken
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