Since I'd some copper plating solution left, I blended in a small amount of it with my nickel plating Answer. The result is actually a matte, dim gray, pretty tricky complete that appears like a chalk board (it squeaks like a person much too when you scratch it ). See https://nickelplatingnearme97531.blue-blogs.com/35734509/the-ultimate-guide-to-nickel-plating-near-me