This paper discusses the finishing aspects involved in coating flexible substrate materials. Emphasis is placed on the physical characteristics of current flexible enamel topcoats designed for OEM usage. In addition, the paint processing steps involved in finishing thermoset urethanes molded by the RIM technique are outlined.Topcoat application and specifications for appearance, physical properties and durability are discussed in detail. Substrate-topcoat interaction is discussed in terms of the effect on initial physical properties and durability of the finished part. The durability of a coated flexible system is compared to the durability of conventionally coated rigid materials.