For the cover over the model, I’ve settled on 3/16" polycarbonate and a type of fitting that is small and smooth and doesn’t require hole drilling.
But the fittings are heavily chrome-plated, and they need to be black. A local powder coater says he’ll do the job, but I have to remove the chrome.
I’ve tried (per Youtube & other advice) soaking in: lye, Easy-Off, and muriatic acid. None worked in the slightest. Even did the reverse-polarity 6v thing in a 50/50 mix of water and muriatic, nope.
I also did pure muriatic and just left it for an hour. The original fitting is on the left, the test fitting is sort of on the right…
Guess I left it in too long.
Anyway, the plating is tougher than the steel beneath it.
There are tons of Youtube vids on (trying to) paint over chrome, but that’s not likely to hold up in a touchy environment.
Any thoughts on what I should do?
Default solution is to take a month (well, maybe not that long) off work and carefully belt sand the chrome off all the fittings and then have them powder coated.