glass bead blast, under the lowest air pressure that removes the paint. then clear coat to make it shiny again.

i THINK there is a new basting method, vapor or something like that, that damages less. this would be better than glass beads.


SEM also makes bumper paint stripper to strip paint of plastic bumpers.
i myself wouldn't use any solvent on a plastic charcoal canister. this will probably mess up the plastic.