Lacquer thinner and acetone will attack the base plastic.
Enamels should be okay as long as not thinned with the above.
Two part epoxy or polyuethane paints are good too. But, you really need breathing a other personal saftey equipment especially for these, and for that matter any paint vapors, if you value your kidneys, liver, and lungs.
If you first coat the plastic with an epoxy type primer/sealer and let it cure properly, this will protect the plastic from just about any overcoat you wish to apply.
Cheers,