Silicone-Hardcoated Polycarbonate Exterior Appliques 950804

Exterior appliques are used as filler and trim pieces on the B and C pillars of passenger cars and light trucks. Once manufactured of painted-die-cast metal, exterior appliques have now evolved from painted plastic to silicone hardcoated polycarbonate.
The new polycarbonate/silicone system offers integrally colored, hardcoated appliques with higher gloss and depth of image (DOI) than painted and nonpainted systems, and the silicone hardcoat boosts the scratch- and weather-resistance properties of the applique. The high impact resistance of the polycarbonate offers 30-60% lighter weight and greater durability vs. metal.
From a manufacturing standpoint, production of hardcoated appliques involves fewer steps and is easily automated. Transfer efficiency of the silicone is about 90%, and warehousing and mixing are simplified vs. painting.
This paper will discuss a variety of functional testing methods to ensure performance of the new substrate and coating vs. current production alternatives of metal or painted plastic.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.