Quoted from meSz:Swinks, you probably not the person to ask but incase this is something you discussed..... what about using polishes? For example, either the Novus route or even like a 3M paint polish?
If not the above then is it basically a surface that, over time, will wear and it is what it is?
I asked the instigator of the tops / finish.
He said any polishes will contribute eventually to ever so minute sanding effect so the less gritter the polish the better.
I personally have to say while it was cool seeing someone bashing a playfield with a hammer showing the strength and dent protection from the ball - in that jig that shows the ball rolling back and fourth 250k times if you look carefully the plastic does show minor scuffing.
I just wanted to share the above mainly so people don't try to flame polish as that will destroy the sheet. I would be tempted to order a top artwork panel and keep for safe keeping if you knew you were keeping the game for a very long time and knowing it was going to be played alot.