Nope. Most of the rust came right off off with a little WD-40 and lightly rubbing with a scrubby sponge. On the really bad spots where the chrome flaked revealing exposed (and rusted over) steel, I removed the rust with a dremel and brass brush, and coated over the steel with clear coat to try and prevent future rusting. I tried OA on a couple troublesome spots using OA soaked rags, but it didn't work well and I was scared might get to the decals somehow, so quickly stopped attempting that method.