- 1). Clean the surface of the aluminum with dish soap and warm water, using a clean cloth. Rinse with water and dry with a towel. Rinse out the bucket and refill with fresh water.
- 2). Dip 400-grit sandpaper into the water, lightly dampening it. Begin to sand away the scratch in a gentle, circular pattern, not pressing down. This will begin to "erase" the scratch. Continue to dampen the sandpaper as necessary, then wipe dry with a towel to remove all dust.
- 3). Refresh the water in the bucket by pouring out the old water and refilling the bucket. Lightly moisten the 600-grit sandpaper using the fresh water and continue sanding the scratch on the aluminum with gentle, circular strokes. This will remove the scratch. Rewet the sandpaper as needed.
- 4). Rinse the bucket and refill. Sand the scratch with dampened 1200-grit sandpaper but do not sand in a circular motion. Instead, sand gently in one direction only. This will finish the aluminum. Wipe dry with a towel.
- 5). Apply a thin, even layer of aluminum polish with a brush or cloth. Dry as long as suggested by the manufacturer. Polish with a microfiber cloth to make the aluminum shine.
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