Our metal coils are made of high-quality Galvalume® that are sourced from domestic mills in the United States. We're always working to provide the best customer service possible. We have 34 colors of coils in stock that are coated with Sherwin Williams's Fluropon. Sherwin Williams's Fluropon is a high-performance Kynar 500® / Hylar 5000® PVDF resin-based coating that meets most ASTM physical property performance requirements.