On Wednesday, November 29, 2017 at 12:04:05 PM UTC-5, Waveguru wrote:
Is there a solvent that will remove rattle can paint without damaging the plexy?

Boggs

Nope. Too risky.
Try scratch removal type polishing compound first. If there is any wax or polish on it you may well find this will get it off(thinking over spray). If thicker, see if you can chip it with your finger nail. Beyond that you may be into sanding. I'd start at 1500 with a block tat just covers the area, followed by finer grits up to 4000 or 5000, then polish.
Good luck
UH