What is a 220 grit sandpaper normally used for?

Sandpaper at 220 grit is on the border between those that are good for sanding wood and those that are commonly used for finishes. That makes 220 grit the coarsest paper used for sanding finishes. Finishers usually use it to smooth sealing and finish coats before applying another coat of finish. When using sandpaper at 220 grit, it is important to note that it falls on the border between types suitable for wood sanding and finishes. This particular grit is considered the coarsest option for sanding finishes, making it ideal for smoothing sealing and finish coats prior to applying additional layers.