The grit of sandpapers is a rating of the size of abrasive materials on the sandpaper. The higher grit number is equivalent to a finer abrasive, which creates smoother surface finishes. Lower grit numbers represent coarser abrasives that scrape off materials much quicker.
Moreover, what does P stand for in sandpaper?
The “P” prefix by the grit number means this coated abrasive conforms to the FEPA grading system.
Then, what is the finest sandpaper UK? Sandpaper ranges from Grit 40 to 10,000. With Grit 40 being Very Course, and 10000 being ultra fine. 10000 grit is the finest sandpaper available on the market.