It is possible and often even necessary to polish painted plastic parts. There is no difference in polishing on plastic and metal parts. The only consideration should be the temperature build-up. Plastics heat up considerably faster than metal parts and, if improperly treated, can cause the paint to melt. It is, therefore, important to always use TopWool lambskin polishing pads. TopWool pads have the ability to conduct heat and thus absorb any excess surface heat. Furthermore, it is important to ensure that the polisher is set for operation at a low speed (800-1000 rpm).