Anyone know where I can get instruction on how to properly clean, prep and polish my horns?
Thanks, Dalton
Preparation
- Clean the Surface: Remove any dirt, grease, or debris using soap and water. If the aluminum has a coating, strip it off using an appropriate chemical remover.
- Assess the Surface: Determine the initial condition of the aluminum. Porous cast aluminum may require coarse sanding to smooth high spots.
Sanding Process
- Start with Coarse Grit: Use 160–320 grit sandpaper to remove surface imperfections and tool marks. Wet sanding is recommended to minimize dust.
- Progress Through Finer Grits: Gradually move up through sandpaper grits:
- 400 grit
- 600 grit
- 800 grit
- 1000 grit
- 1500 grit
- Optionally, finish with 2000–3000 grit for smoother results.
- Change Sanding Direction: At each stage, sand in a direction perpendicular to the previous one to ensure all scratches from the prior grit are removed.
Polishing
- Apply Polishing Compound: Use a metal polishing compound on a soft cloth or microfiber towel. Rub the polish into the surface until it turns black (a normal reaction).
- Buffing: For larger areas, use a rotary tool or buffing wheel with a polishing compound for consistent results.
- Repeat if Necessary: Continue polishing and buffing until the desired mirror finish is achieved.
Optional Protection
- Apply a protective coating to prevent water etching and staining over time.
This process is labor-intensive but will yield excellent results if done meticulously.