Years ago I used to dabble in model railroading. One of the
products I have a few oz. left over is useful for removing
paint from plastics without damage.
Today I did some spray painting while wearing poly carbonate
glasses. I couldn't remove the paint spatters (dried latex)
with water and I sure wasn't going to douse the glasses with
lac thinner so I tried my old standby.
Because the plastic bottle broke years ago, I had
transferred the contents to another bottle so I can't recall
the EXACT part number. It looks like Floquil "Easy Lift Off"
is the current description of the same stuff I purchased
back in the mid 80's.
Here is the link:
Good stuff! My glasses are as clear as the day I bought them!