BARailroad posted:Looks great George! I think I’ll give the polish a try on a Marx tank car that I have two of.
So, the polish works best on a prewar enamel paint that is oxidized or has dirt and grease embedded into it from humid environments. Marx is frequently lithographed. I would start with something more suitable for that finish. On Lionel litho, I used automotive Plastic scratch remover with good success. The product I have is Meguiars Plastx. The TR-3 might work but I haven't tried it with litho or decals. Either way, go slow and start in a small area. Gentle rubbing to start.
George