Sandpaper with a 2000 grit rating is an ultra-fine sandpaper that can be used for a final sanding to achieve a smooth finish on a car’s paint or bodywork. It can also be used removing light clear coat scratches that can’t be removed by rubbing compound and buffing.
2000 grit sandpaper is best used wet when used for fine finishes as the lubrication helps to carry away any grit particles which could ruin the finish if they weren’t easily wept away. This means the 2000 grit sandpaper needs to be soaked before use; the best liquid to use is clean water with a small amount of detergent to lower the surface tension of the water for a smoother glide. In some cases, oil can also be used.