Poking around my car while working on other stuff I found two new rust spots. The first has a plastic trim thing on the outside that's a pain to get off, does the rust look like it's just starting on the inside here or is the outside likely much worse? Is there anything I can to to slow/stop this or am I just looking at having to cut it out and replace the metal at some point?
The second is more urgent, I saw a bit of flakiness and a small hole and ended up finding all this hiding under bondo. I'm not sure how someone managed to damage that spot in such a way that it needed bondo but whatever. I have some rear spats to put on that will at least cover this whole area, so I can at least cut out the nasty parts and hopefully clean/treat the rest to stop it spreading? I'm not sure what to use though.
The other issue here is this goes straight into the trunk area. There's a plastic trim panel inside but it's not sealed and I can already see where dust and dirt has come in from here. I need to figure out an easy way to close this off so crud doesn't make a mess, cause rust in other areas, and moisture doesn't get in and cause mold or something. I can get a bit of access from the inside but I need to come up with something that can fill a big space but won't hold water and make more problems like foam or something would.
