Meguiar's Unigrit Finishing Papers are used by many professional detailers and body shops. Sand paper comes in handy for detailers when performing touch up work, removing deep scratches and imperfections (such as etched water spots or bird droppings), removing orange peel, and restoring oxidized and faded headlights.
Ideally, you want to soak the sand paper overnight in water to help achieve the most uniform finish. Lubricate the surface with a mixture of shampoo and water in a spray bottle. Sand in one direction, do NOT use a swirling motion. We always recommend starting with the least aggressive sand paper and working your way up to a more aggressive paper as needed. 2000 grade sand paper is a good starting point to assess how deep the imperfections are. This can usually be polished out cleanly by most medium cutting polishes. The higher the grade you use, the easier the sanding marks are to get out. The lower the grade, the more aggressive the sand paper is.
Ideally, you want to soak the sand paper overnight in water to help achieve the most uniform finish. Lubricate the surface with a mixture of shampoo and water in a spray bottle. Sand in one direction, do NOT use a swirling motion. We always recommend starting with the least aggressive sand paper and working your way up to a more aggressive paper as needed. 2000 grade sand paper is a good starting point to assess how deep the imperfections are. This can usually be polished out cleanly by most medium cutting polishes. The higher the grade you use, the easier the sanding marks are to get out. The lower the grade, the more aggressive the sand paper is.