How Do You Remove Scratches From Plastic Headlights?

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As plastic headlight lenses age, they tend to yellow and distort the original color. Another side effect is that they pick up scratches, something that can also distort the light output on headlights. Although you can handle the yellowing and simple scratches with a headlight restoration kit, the deeper scratches are a bit more involved to remove, and can take some time to fix properly. Step 1 Run your hand across the headlight, and feel for the scratches. If you can catch a fingernail on the scratches, proceed to Step 2. If not, you should be able to do just the polishing part of the process; skip to Step 4. Step 2 Soak the sandpaper in the water bucket for 10 minutes. Then wrap a piece of 1,000-grit sandpaper around a sanding block. Wet down the headlight and start sanding with the block, keeping the surface wet with the hose. You're going to sand down the plastic surrounding the scratch so that you can eventually polish out the scratch completely. You want the area around the ... more
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