I just took my new '69E for a 5 mile ride and upon returning was dismayed to see a big (3-4 inch) raised bubble of paint on the rear license plate panel. I don't know if there was a problem with how this piece was primered (or not primered). This has never happened with any of my other early cars.

I guess I'll need to get the panel repainted, but I think I might also want to try gluing one of those "heat shields" to the inside of the license plate panel to sit between the panel and the muffler.

Any recommendations on what to heat shield to use and where to get it? Thanks to all!

Rob