Glass does not always have to be ordinary and transparent, you can also refine its surface with different techniques.
Frosted glass is mostly used for entrance and passage doors. Such splendid doors with glass inserts have been known for several centuries and you can still see them in old mansions, castles and stately homes. Even mirrors, windows and lampshades made of glass are decorated with ornate patterns and thereby visually enhanced.
But also in the drinking and eating culture you will find glass objects, which make every table covered with it a highlight. Drinking from a satined wine glass is uplifting and combines style and enjoyment.
A special form is the muslin glass. This beautiful decor looks as if the surface is covered with the finest lace. The historical ornament is still very much in demand today and usually decorates doors and bathroom windows.
To make the glass surface appear milky at certain points, it is roughened with hydrofluoric acid or by sandblasting. By this method, the glass is opaque, but still remains translucent. This technique is always used only with clear glass, as the satin effect is better here. By roughening so filigree figures, flowers and patterns can be applied to the surface and a master of this subject can create a unique piece of art … a van Gogh on glass so to speak.
In the past, this type of refinement was still a craft and not without danger. Since the glass was still blasted by hand with sand and this barg proved to be at high risk of developing the lungs. Since the industrialization of glassmaking in the 19th century, many processes have been improved, and so sand is no longer used, but corundum. This is a mineral abrasive of alumina.