Mill Finish aluminum is an unpainted sheet product. It is shiny silver in appearance.
Chris Industries offers alloys 3003-h14, 5005-h34, 1100-h14, or 3105-h14 which conforms to ASTM b209.
Attached is a photo of the flashing at 199 E. Lake Shore Drive. We wanted to let you know that you did a really nice job on the fabricating.
Mike - Mike Larson