mold-etch process was invented, in which art was etched directly into the mold, so that each cast piece emerged from the mold with the texture already on the surface of the glass. This reduced manufacturing costs and, combined with a wider use of colored glass, led to cheap glassware in the 1930s, which later became known as Depression glass. Frost etching is the process in which vinyl window material is cut to produce a pattern and then applied to a window to give a frosted patterned effect. Applications There are many interior and exterior applications for acid-etched glass. Acid-etched glass is widely used for: Enhancing every area where glass can be used and where a little privacy and natural light is desired Creating feature walls or partitions. Enriching doors and windows Heightening the look of balustrades Augmenting shower and bath enclosures Examples See also Glass engraving Laser engraving Satin glass Sea glass References External links Sandcarver Intro to Sandblasting Glass art Etching