There are lots of different type of powder coatings. Polyester, polyester TGIC and epoxy are the main three groups. Polyester is the most likely to be removed with acetone or MEK. The ability to use solvent to remove varies with the amount of bake time and sometimes varies with changing colors. Generally TGIC is more solvent resistant and best in sunshine tolerance and epoxy has the best solvency resistance but mediocre sunshine resistance.
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