Sandblasting, also known as abrasive blasting, is really a generic term that refers to the process of smoothing, shaping, and cleaning a hard surface by forcing solid particles across that surface at high speeds. The basic concept is similar to that used with sandpaper but in a more refined manner. Nature itself does its own form of sandblasting when the wind blows small particles across a surface causing what we popularly know as wind aeolian erosion.
In recent years, sandblasting technology has advanced exponentially. The mixture travels through a hand-held nozzle to direct the particles toward the surface or workpiece. The nozzles come in a variety of shapes, sizes, and materials. Boron carbide is a popular material for nozzles because it resists abrasive wear well.