Quoted from screaminr:
Waxing won't " clean " the ramps . I'm going off what George Gomez recommends , as long as you put it on and wipe it off with a clean rag I don't think you'll have any issues .
Collinite wax is used as a protective treatment after corrosion and rust is removed.
WD40 does a pretty does job of loosening minor corrosion with a scrubby sponge.
Afterwards remove the WD40 with naptha or 99% rubbing alcohol.
After cleaning off rust and corrosion a coat of collinite will prevent further corrosion.
Its used in marine applications world over on all metals, especially aluminum and stainless.
Boat owners absolutely swear by it.
I imagine any pinball machine located near the sea or a water body or in a high humidity environment would really benefit from it.
There are a lot of unnecessarily corroded games out there.