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Roughness and Particle Diameter of Sandpaper

Sandpaper is a common commercially available product used as an abrasive. The most common
use for sandpaper is to remove coatings or to polish a surface with its abrasive properties. These
abrasive properties are classified into grits, each related to how smooth or rough of a surface
finish it will give. To achieve desired abrasive properties, manufactures of sandpaper must ensure
that the abrasive particles are of a specific size and have little deviation. To quantify the quality
of sandpaper, Nanovea’s 3D Non-Contact Profilometer can be used to obtain the Sa height
parameter and average particle diameter of a sample area.

Roughness and Particle Diameter of Sandpaper

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