@Iron Bar
Some years ago Qantas acquired 3 GE powered 744 from MAS. All three were later found to have serious corrosion, apparently due to the re painting "process" used prior to delivery. Steel paint scrapers around the fuselage joints not the best idea.
Yes, not a good idea at all. The removal of original paint and subsequent re-painting has to be carried out using the correct equipment in a controlled environment. It's not like re-painting the front door of your house...