Reply to "mirrors"

Lacquer thinner will do the trick. Used to thin and remove expoxy glues. Great stuff to remove old paint, glues and misc crap. Strong and expensive. Runs about $10 a gal at any home depot store. Great for de-greasing metal prior to applying a gasket sealer. I use a gal for every engine rebuild to remove old sealers, de-grease surfaces, breaks down silicone sealers real quick.

I had to remove my old mirror so I know it works. Be careful were your get it (not on the body paint). Use a rag, wet the surface, scrape with razor and repeat.