Opinions: Remove Paint from Plexi (Solved)

[Eddie_Brock]

Greetings, I need some opinions before undertaking a small tweak on my arcade...
I currently have a sheet of Plexiglass that I will be using as a Monitor Bezel. What I have done is mask off the area in the center that the image will be displayed through, and the remaining area I have sprayed black with Glossy. The black looks great from the outside, however the small edge where the tape was, is a bit unsightly. Its the usual problem where the edge that was masked gets a little paint under the edge, creating a rough look.

Before I break out the paint-thinner, what would the best way to remove the excess paint along the inside edge of the plexi, but keep the existing paint where it belongs? Obviously without scratching the plexi, and without removing the paint I want to keep as the bezel.

I have tried toothpaste and a finger (as per a video I found via google), and it did not work (nor did it scratch ).

Opinions?

[Eddie_Brock]

Ok, so I worked up the courage to try something a bit more potent...
My fiance suggested I try some Ammonia (Nail-Polish remover) before I move on to Paint Thinner, and I'm glad she did.
A few Q-Tips and a steady hand were all I needed to change a rough edge into a decent straight-line. Its a vast improvement over what I had before, and it will surely do the job now. Other than a few finger marks, the Plexiglass is completely undamaged.

I've posted here for anyone else with a similar situation.
Good luck.