Sandpaper
Sandpaper
Sandpaper (/'sændpeɪpər/), also known as glasspaper, is a type of thick paper or thin cardboard coated with abrasive material, typically minerals such as garnet or aluminum oxide. It is used to smooth surfaces, usually in preparation for painting or varnishing.
Etymology
The term "sandpaper" is derived from the process of using pieces of sand glued to parchment as an abrasive material. The term "glasspaper" is an old British term that comes from the use of fine particles of glass for the abrasive.
Usage
Sandpaper is used in a variety of applications, including woodworking, metalworking, and automotive body work. It is also used in medicine, particularly in dermatology, to remove rough or dead skin.
Types
There are several types of sandpaper, including aluminum oxide, silicon carbide, ceramic, and garnet. Each type has different properties and is used for different applications.
Grades
Sandpaper is graded by the size of the grits, with lower numbers indicating larger, coarser grits, and higher numbers indicating smaller, finer grits. The grade of sandpaper is important in determining the smoothness of the finish.
Related Terms
- Abrasive: A material, often a mineral, that is used to shape or finish a workpiece.
- Grit: The size of the abrasive particles in sandpaper.
- Coarse: A term used to describe larger, rougher grits in sandpaper.
- Fine: A term used to describe smaller, smoother grits in sandpaper.
External links
- Medical encyclopedia article on Sandpaper
- Wikipedia's article - Sandpaper
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