I want to paint the reflectors on the trunk lid. Not the tail lights themselves just the reflectors and revers lights. I want them to be like gloss black. I have 2 different black paints at my house but I never used them on plastics like the lights. I have urethane enamel that is really really nice and I have clear coat to go with it but idk if it will stick to the plastic. And I also have oil based enamel that's just tractor paint and clear coat for that as well but its not nearly as nice as the urethane. Would the urethane work on the plastic?