At Fonnov Aluminum, we are proud to have a very effective aluminum alloy anodizing section that gives many surface finish options for aluminum solar panel frame extrusions. We offer both clear anodizing and black anodizing, but there is a slight difference between the two surface finishes. It is all about the inclusion of a pigment during the anodizing process. While clear anodizing results in a silvery appearance, black anodizing presents an black attractive appearance.