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Apply Liquid Sandpaper:
Pour the Liquid Sandpaper onto the magic eraser sponge and dab it onto the headlight lens. It will foam and turn brown as it lifts oxidation.
Sand The Light:
If Liquid Sandpaper starts to dry, spray water on the lens while sanding. If you're new to sanding or worried about scratching the paint, tape off the headlight with blue painter's tape.
Start with the 1000-grit sponge to smooth the lens, then sand with the 3000-grit sponge for several passes. The more you sand, the better the lens will look
Rinse the lens with water and dry it completely with a towel.
Apply UV Coating:
Shake the Black Stay Clear bottle, fold the applicator into fourths, and apply four heavy strips of coating. Start with the edges, then use overlapping strokes to cover the lens. Smooth out any runs or bubbles. To fix mistakes, rinse with water and reapply.
Dry Time:
The lens dries in 25–45 minutes. Speed up drying with a hairdryer or heat gun on low, 3 inches away, for 3 minutes. Avoid direct heat. For severe damage, apply a second coat after 1.5 hours. Keep the lens dry for 30 minutes and avoid washing for 24 hours.
Not included but recommended:
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Spray bottle with water for rinsing,
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Lint-free microfiber towel or paper towels for drying,
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Blue painter's tape to protect the bumper and fender.
Headlights with this type of damage need to be professionally repaired.
What types of damage will Headlight Magic NOT repair?
This is usually the factory hard coat peeling off. The only way to repair this damage is to wet sand it entirely off and recoat the fresh plastic. This process is time-consuming and highly labor-intensive. There is also a high risk of damaging paint.
The lens's exterior is cooler than the interior, so moisture adheres to the inside. This causes condensation in your headlights. A bad seal around the headlights can also allow water inside the lens.
Most likely, the UV light has affected the plastic. Over time, the UV light from the sun will break down the plastic, and this will eventually result in the car's headlights cracking.