15 Jan 2019, 01:10
Paint and coatings will always deteriorate over time.
Remember the XB-70 that came back almost "naked" after a high speed flight.
First the structure, then some base - corrosion prevention coating, then some top layers, some RAM here and there, each expanding and contracting at different levels with pressure and temp changes.
Even your 65 mph car will require paint work sooner or later.