Topic: How to Properly Finish a Bathroom Towel Rack
Sandpaper is graded as medium, or numbers 60, 80, and 100. Fine sandpaper numbers are 150, 180, and very fine 220, 240, and 280. Medium is usually used for the first sanding, fine for smoother results and very fine for smoothing finishes between coats. Sandpaper can be used wet for some finishes.