Above - Before cleaning
Above - Product used
Above - After cleaning!!
These are the Lionel SF passenger cars from 91/92 that I have. I bought them years ago, never opened them up, never ran the. I opened the boxes recently and the where blotches on all the roof tops. I keep them stored in a temperature/humidity controlled basement.
First I took a damp rag with water, gave them a quick wipe, nothing. OK, I'm a car guy, what's in the garage?? I found my can of EAGLE ONE "Nevr-Dull" and gave each a quick rub and then wiped them up with a clean microfiber towel. Success!!!