I'd think maybe some surface paint might come off if it was badly oxidized. Like on a car that's been exposed long without polishing/waxing.
My (2) 114 mounts both circa '57-'58, and another 114 mount from the '60s plus a '56 128 mount all shine nice with no signs of caulkyness.
I've yet to thoroughly detail any of them, but the 114 mount from the 60's was obviously left outside very long and cleaned up pretty well with no real noticeable paint residue on the cleaning rags.
Edited by Kasmos, 30 October 2020 - 03:27 PM.