Ten-year exterior durability test results compared to various accelerated weathering devices: Joint study between ASTM International and National Coil Coatings Association

ASTM's Task Group D01.53.03.03 Coil Coating Task Group on Accelerated Weathering was formed to answer a simple question: which accelerated test method best correlates with real-time weathering for highly durable coil coatings? A ten-year study was initiated, and coil coated panels were collected from D01.53 coater members for all current coil coatings technologies destined for exterior exposure applications. The real-time panels were weathered in southern Florida and in Phoenix, Arizona. Accelerated weathering was run, including UV-Condensation tests (with both “A” and “B” bulbs), Xenon Arc Weatherometer, Dew Cycle Weatherometer, and Fresnel-type weathering.