1st post to the forum! I'm starting work on one of the new editions of Tamiya's T70 Lola and wanted to remove the chrome from several parts.
I didn't have some of the suggested items so I tried some Zep purple degreaser. It works in seconds not minutes. I did all the carbs and radiator parts in a plastic bowl with about 1/2" of the cleaner in it. The chrome just disappeared as I swirled the parts around for maybe 20 seconds.
It take it all the way to bare plastic with no harm to the parts. And boy, are they degreased.