I might have to try that. I have a mark on the pepsi logo on my machine that is kind of annoying that I would like to get rid of. Where do you get this stuff at?
Here's an example for you, most pinball places have it.  Mine is the #2, in the red bottle:
http://www.pbresource.com/cleaner.htmlMy wife's machine has a scratch clear across the "Cola" part of "Coca Cola".  This really helped hide it, along with alot of smaller scratches.  I usually hate stuff that I just can't go into a store and buy, but I took the recommendations from fellow gamers and pin owners on this one.  They were definitely right.