[Jrainman]

depending on the type of plastic you might have to prime first, if your going to apply any type of coating ,if you were going to clear coat , I would epoxy prime first , you might even need to use a adhesion promotor again depending on the plastic. they are also plastic restore products out there like for ATV plasticc but again you need to know what type of plastic you are dealing with , you might want to have this thread moved over to the paint section, the body and paint guys could give you a better idea in how to do this.