How do I prevent rust on inside of window wells?
I have corregated metal window wells that have rust appearing on the inside through small pin holes. They do not need to be replaced for a long time but they look awful. I can paint them to make them to look better, but rust streaks would begin to form again. Is there any barrier that can be put on the inside of the wells before painting that would keep rust from leaking through? The wells are deep because they are egress windows from a basement living area so I would like to have them look good. Would something like bondo work if it could be put on in a relatively thin layer so that patches where the bondo was placed would not looked like the surface was patched. Or could bondo be troweled on to make a smooth inside surface? Or? Or? Or? I would appreciate any ideas.