Perforation - Joest drywall sandpaper products have holes throughout the surface
that allow the dust to easily escape, and Eliminate Load-up.
Because you won't have dust particles clogging up your paper, you can
now use the full potential abrasive life of the sheet. Perforation
allows the sheet to last longer and provide a higher level of finish.
Fiber Backing - Joest abrasive drywall sanding sheets utilize a
Non-Woven backing that draws the dust through the portholes evenly. Not
only is the backing a nice additional cusion, but it drastically
improves the performance and life of the sanding sheet. Even
distribution of sanded drywall material mean you can Eliminate Sand
Scratches!
Aluminum Oxide Grit- Traditional drywall sandpaper uses sharp
edged silicon carbide abrasive that starts out cutting hard, but doesn't
wear evenly. Joest Drywall Sanding Sheets utilize Aluminum Oxide grit
that is rounded (instead of jagged), and wears uniformly. Joest products
will cut at the same rate throughout their useable life, and will
resist loading.