So I purchased a set of premier passenger cars from 2004-2006 era. The couplers have the typical white spotty rough surface. Before I bought them I tried to squeeze these as hard as I could to see if they would break. They are as strong as when new. I don't think they are zinc rotted.....or maybe they are in the initial stages of rot....not sure. So I soaked the couplers in Lime-away overnight. That soaking removed all the paint. I would like to color these back to black. Is gun bluing an option with these zinc couplers? ShoulI repaint with rustoleum or something else? Any suggestions are appreciated.
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