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Headlight Restore Kit needs to be redone

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Hi, I used the headlight restore kit and it turned out OK initially but the finish seems to be getting worse with time. Can someone advise best approach to redo it at this point? Photos attached. Thanks.

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The right approach is to wet sand the existing coat smooth, then apply a fresh coat of DiamondFinish Clear reduced 10-20% with KBS #1 Thinner for better flow-out. Here are the steps:

  1. Wet sand the lens surface smooth, working evenly across the whole lens to level any roughness without cutting through the plastic itself.

  2. Rinse thoroughly with clean water and dry completely.

  3. Reduce DiamondFinish Clear 10-20% with KBS #1 Thinner.

  4. Apply a thin, covering coat with a brush, working from top to bottom in one direction. Do not overwork the brush.

A second coat can be applied if you want added durability.

Before you start, take a few minutes to read through the directions. They cover details like avoiding direct sunlight during application and keeping your brush strokes light, things that are easy to skip but matter for how it turns out.

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