Use with commercial floor buffing machines to sand floors.

Silicon carbide discs are sharp enough to sand concrete floors. You can also use them to sand wood floors, but they’ll wear out quicker than ceramic alumina discs. Clog-resistant discs have a coating that prevents dust and debris from building up on the abrasive surface.

Ceramic alumina discs are the best choice for sanding wood floors. They won’t dull as fast as silicon carbide discs because their grit particles continuously fracture to create fresh, sharp cutting edges. However, these discs are not sharp enough to sand concrete floors.