How do you fix faded anodized aluminum?

Keganhirl · (This post was last modified: 12-01-2021, 07:05 AM by Keganhirl.)

Aluminum anodizing occurs occasionally during aluminum surface treatment, and the oxide film is dim after anodizing, sometimes pitting corrosion occurs. In serious cases, black pitting corrosion is significant, resulting in scrapping of parts and great losses. How to correct remedy the darkening of aluminum anodic oxide film

lolitahe69 · 12-01-2021, 07:05 AM

Polishing Your Aluminum
Sand your aluminum surface using 800-grit sandpaper. Use a firm touch and continue sanding until the aluminum appears perfectly smooth. Sand it by hand with or without a sanding block, or use an electric sander if you know how to properly use one of these devices.

Attach a buffing pad to a hand buffing machine and turn it on. Slowly move the buffing pad in circular motions along the entire aluminum surface, and then wipe the aluminum with a soft cloth.

Apply a commercial aluminum polish or anodized aluminum polish to the aluminum surface. This is your final polish. Squeeze a dollop of the polish onto a soft cloth and and rub it in circular motions across the surface. If you de-anodized the aluminum, use a standard aluminum polish, not an anodized aluminum polish.