Homeowner’s Guide to Sandpaper

Open coat sandpaper
Open coat sandpaper has spaces between the grit to catch dust.

Sandpaper Glue and Coatings

  • Bonding Material: While many sandpapers are bonded to the backing with hide glue, others use special waterproof glue or heat resistant adhesives.
  • Open vs. Closed Coat: Sandpaper may be either closed or open coat. Sandpaper with a closed coat is completely covered with grit while open coat sandpaper has small gaps between the particles of grit. While closed coat sandpaper gives a smoother finish, it tends to clog. The gaps between the particles in open coat allow dust to collect to prevent the paper from clogging.

Further Information

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