How to Repair Rims with Curb Rash or Scratches

Introduction

This tutorial will guide you through the process of repairing aluminum rims that have curb rash, scratches, or bubbling clear coat. By following these steps, you can restore your rims to their former glory, saving money and enhancing the look of your vehicle.

Step 1: Clean the Rim

• Use soapy water (dish soap works well) to thoroughly clean the rim.
• Remove all dirt and grime for a clear surface to work on.
• Rinse and dry the rim completely to prepare for the next steps.

Step 2: Remove Scratches

• Use a rotary tool with a flat disc attachment (preferably around 200 grit) to sand down scratches and curb rash.
• Keep the tool moving to avoid digging into one spot, which can create divots. Focus on:
  • Sanding the entire damaged area.
  • Moving back and forth to smooth out the surface.
• Follow up with wet-sanding using quality sandpaper:
  • Start with 400 grit, then move to 600, 1000, and finally 2000 grit.
  • Use soapy water to help the sandpaper glide and prevent clogging.
  • Sand in random circular motions with medium pressure.

Step 3: Strip the Clear Coat

• Apply a chemical paint stripper to remove the old clear coat.
• Use a spray bottle for easy application, ensuring to cover the entire rim area.
• Allow the stripper to sit for about an hour until the clear coat bubbles up.
• Rinse the rim and neutralize the stripper with a neutralizing agent.
• Use an abrasive sponge to scrub off the remaining clear coat. Repeat the application as necessary until all clear coat is removed.

Step 4: Final Sanding and Polishing

• Inspect the rim for any remaining imperfections.
• Perform a final sanding step using 400 to 2000 grit sandpaper, ensuring a smooth finish.
• Once satisfied with the sanding, dry the rim completely.
• Use a polishing kit with a foam polisher attached to a drill to apply polish:
  • Work the polish into the rim at a slow speed first, then increase speed for a good shine.
  • Buff off the polish with a microfiber towel.

Step 5: Apply a New Clear Coat

• Clean the rim with rubbing alcohol to remove any residues.
• Use note cards to mask off the tire, preventing overspray.
• Choose a UV-resistant, non-yellowing clear coat and apply three even coats:
  • Each coat should be medium thickness; avoid heavy layers that could run.
  • Allow each coat to dry for about five minutes before applying the next coat.

Conclusion

By following these steps, you can effectively repair curb rash and scratches on aluminum rims. This process not only improves the aesthetics of your wheels but also helps protect them from future damage. Regular maintenance and prompt repairs will keep your rims looking their best. Enjoy your newly restored wheels!