Sand carving is also know as sand etching, and is a process used to etch or engrave various substrates that uses sand abrasives to do the carving. It is the process that is often used when marking crystal and glass with a distinct ‘frosted’ look, but can also be used on other substrates such as marble, acrylic, granite, metals, plastics, and more. It is one of the most simple and accessible methods for product decoration, and is capable of producing beautiful and permanent designs.
The sand carving process is relatively straightforward. First, a photomask stencil is applied to the surface that’s being carved. Then, an abrasive sand-like material (such as aluminum oxide) is propelled onto that surface. The abrasive carves the surface only in the open areas of the stencil, while the areas covered by the photomask remain smooth and spotless.
The end result is an impression made in the glass, crystal, or stone cleanly follows the pattern in the photomask.