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Customer's expectations are increasing in the competitive automotive market. In an effort to enhance marketability, interior and exterior trim parts that are comprised of plastic, paints, and films are being assessed for scratch and scuff durability. There are many different methods used inside and outside the automotive industry to determine the performance of these materials. However, the majority of these methods do not correlate the performance of the material to the customer's expectations. This paper reviews existing scratch/scuff methods and advancements in scratch/scuff performance test methodology from analyzing driver and passenger zones, customer expectations, and part design.

Dark, high gloss decorative finishes (i.e. piano black) are gaining increased application and demand in vehicle interiors; due to interior stylists' desire for this look. One significant concern with this trend is that scratches, and other appearance related defects such as orange peel (waviness), are more apparent to the customer. To address this issue, a highly scratch-resistant 2K clearcoat formulation was developed to minimize visible surface scratches, while also yielding minimal orange peel and exceptional DOI (distinctness of image); all while being applied using typical application techniques in the part finishing market. This output was accomplished by first benchmarking the consumer electronics market for appearance and scratch resistance, and then setting targets through that research.