How to paint with the best results possible?

[Dave Farquhar]

I have removed Modelflex from plastic using 99% Isopropyl alcohol and brake fluid. Be carefull with the brake fluid as it effects some plastics. Always test in a hidden spot first. I would imagine both should remove Polly Scale from plastic but I have not tried it yet.

One safe way to remove paint from plastics is to soak the item in Purple Power, a high-strength cleaner you can find at auto parts stores. Depending on the paint, it can take anywhere from a couple of hours to a couple of days. I've never had a problem with it damaging any plastic.

It works on metal too, but of course with metal you don't have to be as careful so I generally use aviation-grade paint strippers on that. Then you're talking 15 minutes to bare metal, usually.