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Why is a Sandpaper rough?​

Sagot :

Answer:

Aluminum Oxide: Aluminum oxide is one of the most common abrasives, and works well for sanding both wood and metal. As you sand, the aluminum oxide particles crack and break off, which means that sharp new points are constantly being exposed.

Answer:

Sandpaper is produced in a range of grit sizes and is used to remove material from surfaces, either to make them smoother (for example, in painting and wood finishing), to remove a layer of material (such as old paint), or sometimes to make the surface rougher (for example, as a preparation for gluing).

Explanation: