I’ve been restoring two Hallicrafters receivers. Both were garage stored – the cases were really dirty, though fortunately not rusted. After washing the case with soap and water I decided to try something new to restore the paint’s finish.
The Meguiars clay bar kit I used on my car literally took the dirt out of the paint, leaning it silky smooth. You have to work on a small area, but the results are worth the effort.
I followed this with 3 coats of Butchers Bowling Alley Wax. I recalled my Mom using this on the natural wood floors. The smell of it alone brought back many memories! This wax requires a bit of rubbing, but the end result is a case that looks brand new. I’ll post a few photos when I reassemble the radio.
https://www.meguiars.com/automotive/products/meguiars-smooth-surface-clay-kit-g1016-kithttp://www.bwccompany.com/bowlingalley.html