This last one I made didn't wipe, don't think it was a factor with my problem but I agree, better safe than sorry. I'm sure the protective wrap must leave a film of some sort.
I could easily get the paint off, but would still be left with a botched etch. I guess I could just turn that into a poor mans edge lit sign ,,, But these are mostly meant for sale to my work buddies and like most here, if I think something is shabby I wouldn't even attempt to sell it for decent $$.
The 1st major botch found a permanent place on my wall of shame, another I did some useful experimenting on. A couple more I will sell as is dirt cheap [$20] for nice garage hangers. Still won't literally throw away a flawed piece like that though, they'll sit for weeks, months or maybe years outside my garage until some use comes up for them.
I hope this thread turns some wheels in peoples minds, when they come out nice they are very gratifying and are very appealing for desk signs or hangers for anything 2D. This would be the go to thread for anyone with paint/plexi problems.