Brass plated silver wire turns black: effective fix

Summary for brass plated silver wire Discussion

Brass plated silver wire turns black over time, and Ramesh Pandit asked what could be done after a brass plate on silver thread was rinsed and then treated with potassium bichromate to produce a golden yellow color. He reported that the finish looked rich at first but turned black after about 30 days. In response, one answer asked for more detail about the product because the best fix depends on whether the wire must remain conductive; that reply noted lacquer might help, but would not be suitable if conductivity is required, and warned that bichromate on jewelry is an absolute no-go. Later, Gurudatta Thakur advised using post-plating water-based lacquers or sealants, saying they would definitely solve the problem. The thread therefore points to sealing the plated wire as the practical remedy, with the caveat that the application matters.