Vid, I want to clear coat the playfield from a Road Show I picked up. I noticed that it has paint bubbled up in spots. A lot of the spots will be covered by ramps, but some won't. I tried sanding it very lightly in a place where it wouldn't show. Anything more than the lightest sanding removed the bubble. The ones that didn't pop turned lighter. What would you recommend I do to prepare the surface for clearing without making a bunch of paint spots where I may not be able to match paint? My original plan was to sand the surface with 800 grit to help the clear bond to the surface of the playfield. I appreciate your advice. Thanks!
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