... PVDF coating also can be classified as traditional PVDF and nanometer PVDF coating. A. Traditional PVDF Coating, with KYNAR500 PVDF ... aluminum coils are applied for external wall cladding. B. Nanometer PVDF Coating, which different with traditional PVDF, is the ... clear coating. It contains nanometer element, which can protect panel from pollution, because nanometer has self-cleaning effect, it ...