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• 3/16/2009 3:49 PM Ed Tackett wrote:
  When you push sandpaper across a surface, the abrasive grains cut tiny shavings out of the surface. To the naked eye, these shavings look like dust, but magnified, they're just like the shavings produced by other cutting tools. These shavings are called swarf.
  Now, if you look closely, you'll see that on some types of sandpaper, there are spaces between the abrasive grains. This is called an open coat, and it gives the swarf a place to go and help prevent clogging.
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• 5/25/2009 2:24 PM Gool wrote:
  Thanks for interesting article. I will take into consideration.
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