On Thu, 13 May 2010 11:49:45 -0400, Frank wrote:

What's a good solvent to remove permanent marker on outdoor plastic?

I would try acetone but make sure you check a spot first because, if
plastic is something like PVC, it might dissolve. You could also try bleach.

Bleach? I'll try (I have plenty of that handy); but I thought bleach was an
oxidizer, not a solvent.

Worth a try though ...