Polishing Car Headlight Lenses to Like-New Clarity (800, 1200, 1500, 2000 Grit Guide)

Headlights exposed to UV rays and road grime eventually turn cloudy, reducing both aesthetics and nighttime visibility. While many kits exist, sanding with the right grit sequence is one of the most reliable ways to restore clarity. Done correctly, it can make old headlights look nearly new again.

Why Sand Headlights?

Plastic headlight lenses oxidize and develop a yellow haze. Sanding removes the damaged outer layer and prepares the lens for polishing and sealing. The result is brighter headlights and safer driving at night.

Tools You’ll Need

• Wet/dry sandpaper sheets
• Spray bottle with water and mild soap
• Sanding block or foam pad
• Microfiber towels
• Plastic polish and UV sealant

Best Grit Sequence for Headlight Polishing

• 800 grit (50-pack) — Removes oxidation and cloudy buildup.
• 1200 grit (25-pack) — Smooths sanding marks left by coarse grits.
• 1500 grit (25-pack) — Refines the surface for clarity.
• 2000 grit (50-pack) — Final sanding before polishing and sealing.

Step-by-Step: Sanding Headlights

1. Clean and mask. Wash the headlights and tape around them to protect paint.
2. Start with 800 grit. Use 800 grit sandpaper with plenty of water to remove oxidation.
3. Smooth with 1200 grit. Switch to 1200 grit sheets to refine scratches.
4. Refine with 1500 grit. Apply 1500 grit sandpaper for added clarity.
5. Finish with 2000 grit. Use 2000 grit sheets to prep for polishing.
6. Polish and seal. Apply headlight polish, then finish with UV sealant to prevent yellowing.

Special Cases

• Severe yellowing: May require extended sanding at 800 grit.
• Minor haze: Start directly at 1200 grit for quicker results.
• Showroom clarity: Follow sanding with machine polishing for best shine.

Pro Tips

• Sand in alternating directions with each grit to ensure uniform removal.
• Always keep the lens wet to avoid scratches.
• Seal headlights after polishing—otherwise they will haze again quickly.

Aftercare

• Reapply UV sealant every 6–12 months to maintain clarity.
• Wash headlights regularly to prevent buildup.
• Avoid abrasive cleaners that can scratch the plastic.

FAQs

• How long does restoration last? Typically 1–2 years with proper sealing.
• Do I need to sand every time headlights haze? Light polishing may be enough if the sealant is intact.
• Can I use a power sander? Hand sanding is safer for delicate plastic surfaces.

Watch & Learn

With the right grit sequence, sanding headlights restores both beauty and safety. Stock up on ultra-fine sandpaper sheets and bring your headlights back to life.