24-grit is the second coarsest grit available for our preferred drum sander, the Clarke EZ-8. The abrasive mineral on this sandpaper is silicon carbide, appropriate for removal of thin shellac or lacquer and most polyurethanes. If you have paint or thick, old finishes, you will want to use a16 grit belt before you use this grit.
INSIDER TIP – if you believe your floor hasn’t been sanded for 40-50 years, this is likely to be your starting grit
If you want more information about the different grits and how they work in sequence to sand wood floors to bare, read it HERE.
Allow one belt for every 250 square feet