As I'm going through cleaning the cabin, I find that overspray glue on the fiberglass only comes up with a brillo. So... I see some stuff on the mirror that didn't come off with cleaner and I figure the brillo will get it off.. well it did and also scratched the mirror which I'm assuming isn't the normal household mirror glass.

So now I have a brillo scratch mark on the mirror.. What are these things made of and is there any chance of buffing them out somehow???

plexiglass all you can do is leave it alone

The mirror is a form of plastic. If the scratches are not deep it can be buffed out with a compound and then a polish. Use items similar to what you would use on the fiberglass. There is also a plastic polish kit out that has 3 products in it, compound, polish and clean. I don't remember the name but try doing a search.

If the scratches are deep then sand with a DA and 800/1200 then compound/polish.

Rick

Thanks, I'll try that!