Our Interior Powder-Coated Aluminum Coil Boasts a dense coating with strong adhesion (cross-cut test Grade 0), backed by a 5-year warranty. Provides lasting color stability, ideal for processing into indoor aluminum ceilings, appliance panels, and other products requiring high color consistency, ensuring end-product quality.ChangSheng Zhengji Exterior Powder-Coated Aluminum Coil Utilizes special weather-resistant powder with strong UV resistance and a minimum local film thickness ≥65μm. Designed for fabricating outdoor metal roofing, wall panels, and similar products, it comes with up to a 10-year coating warranty, serving as a reliable supply chain choice for outdoor engineering materials.