You sand tail lights by using a series of increasingly fine grit sandpaper, typically with water as a lubricant, to remove oxidation, scratches, and discoloration, restoring clarity to the lens. Here's a breakdown of the process:
Steps for Sanding Tail Lights:
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Preparation:
- Clean the tail lights thoroughly with soap and water and dry them completely.
- Mask off the surrounding area of the car with automotive tape to protect the paint.
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Initial Sanding (Coarse Grit):
- Start with a coarser grit sandpaper (e.g., 400-600 grit) to remove the bulk of the damage.
- Wet the sandpaper and the tail light lens.
- Sand in a back-and-forth motion, applying even pressure. Work on one tail light at a time. Approximately 20 seconds is often sufficient for this stage, but monitor progress.
- The goal is to remove the oxidation and any significant scratches.
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Intermediate Sanding (Medium Grit):
- Move to a medium grit sandpaper (e.g., 800-1000 grit).
- Again, wet the sandpaper and the lens.
- Sand using the same back-and-forth motion, covering the entire lens.
- This step refines the surface and removes scratches from the previous sanding.
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Fine Sanding (Fine Grit):
- Use a fine grit sandpaper (e.g., 1500-2000 grit).
- Wet sand the entire lens to further smooth the surface, removing any remaining imperfections.
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Final Sanding (Ultra-Fine Grit - Optional):
- If desired, you can use an ultra-fine grit sandpaper (e.g., 2500-3000 grit) for an even smoother finish. This step is particularly useful if you plan to polish the lens afterward.
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Cleaning:
- Thoroughly clean the tail light lens to remove any sanding residue.
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Polishing (Recommended):
- Apply a plastic polish designed for headlights or tail lights.
- Use a clean microfiber cloth or a polishing pad attached to a drill to buff the lens. This will restore clarity and shine.
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Protection (Optional):
- Apply a UV protectant coating or clear coat specifically designed for plastic to protect the lens from future oxidation and damage.
Important Considerations:
- Water is crucial: Keep the sandpaper and lens wet throughout the sanding process to prevent the sandpaper from clogging and to ensure a smooth finish.
- Even Pressure: Apply even pressure to avoid creating uneven spots on the lens.
- Inspect Regularly: Check the lens frequently to monitor your progress and avoid over-sanding.
- Safety: Wear appropriate safety gear, such as gloves and eye protection.
By following these steps carefully, you can effectively sand your tail lights and restore their clarity and appearance.
