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Coatings based on Kynar Aquatec® PVDF resin pick up very little dirt. This resistance is important for all colors, but none more so than white. Roofing coated with Kynar Aquatec® PVDF resin-based coatings can achieve total solar reflectance values greater than 0.80 and retain those high values for many years.  The image below shows the dirt shedding performance of Kynar Aquatec® PVDF resin-based coatings compared to conventional acrylic roof coatings.

Kynar Aquatec® coating (left), Commercial acrylic coating (right).