Yes, I have known people who use 409 for stripping paint, and it is largely plastic safe
IIRC. I tend to go back to basics, Sodium Hydroxide base that is - as found in Super Clean or Oven Cleaner.
Automatically Appended Next Post: http://www.paintingclinic.com/clinic/guestarticles/removingpaint3.htm
A link to a large study of different paint strippers.