I just applied the Jax Brown-Black onto a sheet of 3’x5’ copper for a bar station I made. What can I apply to this for the final to protect the surface and to bring out the colors?
There is really no “right” way to do this. You could apply a lacquer to it, but lacquer could be a problem because if it gets scratched or chipped, it may peel and you would have to strip it and re-do it. Waxing it is also an option, but to look good, wax has to be maintained and re-applied. We recommend doing nothing to it and letting it continue to age and wear naturally.