In the CAMI system, sandpaper grits range from 24 to 1,000 (and sometimes higher), which corresponds to P12 to P2,500 in the FEPA system. The CAMI system predominates in North America. While it ...

Wash down with water and wipe dry. Sandpaper steps only take 2-3 minutes at the most.” From there, that commenter advised repeating those steps with 1,000-grit and 1,500-grit paper.