Rust from damp storage or did Trek paint over the rust?
Hello,
I've been working on repainting the frame of a '80/'81 Trek 412 that had chipped
paint and rust showing at those exposed areas. After some paint stripping I noticed
that there's surface rust on most of the frame, even where the paint was intact and
nowhere near the chipped paint. Could this be from rust creeping under the paint
while the bike was in damp storage or did Trek just paint over surface rust at the
factory?