I'm currently trying to strip some paint from some Weaver ACF covered hoppers. I have several in various paint schemes. Last night I put them all into a tub with 91% isopropyl alcohol. Two of the cars had the paint wrinkling and lifting off by itself within ten minutes. Nothing to it. After 24 hours soaking, the other three cars are essentially unchanged. I can get lettering to rub off with some effort, but the car paint does not want to come off.
Does anybody know if Weaver changed the formula for its paints at some point? To my knowledge, there isn't anything special about stubborn cars. I'm hoping that the alcohol will eventually prevail, as it's one of the safer and easier strippers to use.
Recommendations for stripping plastic parts in general would also be greatly appreciated.
Thanks,
Jim