I used this set for polishing Tamiya spray lacquer on a car model. The coarsest 3000 grit easily removed orange peel from the paint. After working through all the grits, by the time I got to the 12,000, the paint already had a soft sheen to it. Finished off with Novus #2 plastic polish, and the results are great. I will also be using this to polish resin castings.