Removing paint from plastic model kits.

I just did this very thing. I had primed an already painted model I bought on eBay. Once primed, I realized that there were some severe surface blemishes which had been concealed by a thick coat of paint applied by somebody other than me and I wanted to resurface the whole thing. I soaked it in Simple Green. The primer came off in about an hour. The thick paint layer came mostly off in 24 hours with some scrubbing with a soft toothbrush. There were some spots where the paint was laid on really thick, and that required an additional soak after toothbrushing the surface layer away. No harm done to the plastic at all!

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Squadron makes a pretty good product called Chameleon. I use it when needed, it can be reused too.

Yeah, we include a statement in our maintenance manuals for the signage we design that “Simple Green” use voids the warranty. Just strips the paint right off.