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Flashed glass, or flash glass, is a type of
glass Glass is a non- crystalline, often transparent, amorphous solid that has widespread practical, technological, and decorative use in, for example, window panes, tableware, and optics. Glass is most often formed by rapid cooling (quenchin ...
created by coating a colorless gather of glass with one or more thin layers of colored glass. This is done by placing a piece of melted glass of one color into another piece of melted glass of a different color and then blowing the glass. As well as its use for glass vessels, it has been very widely used in making
stained glass Stained glass is coloured glass as a material or works created from it. Throughout its thousand-year history, the term has been applied almost exclusively to the windows of churches and other significant religious buildings. Although tradition ...
since medieval times, often in combination with "
pot metal glass Stained glass is coloured glass as a material or works created from it. Throughout its thousand-year history, the term has been applied almost exclusively to the windows of churches and other significant religious buildings. Although tradition ...
", made by colouring molten glass, giving colour all through the sheet. The colored glass can be partly or completely etched away (through exposure to
acid In computer science, ACID ( atomicity, consistency, isolation, durability) is a set of properties of database transactions intended to guarantee data validity despite errors, power failures, and other mishaps. In the context of databases, a se ...
or via
sandblasting Sandblasting, sometimes known as abrasive blasting, is the operation of forcibly propelling a stream of abrasive material against a surface under high pressure to smooth a rough surface, roughen a smooth surface, shape a surface or remove s ...
), resulting in colorless spots where the colored glass has been removed. Flashed glass can be made from various colors of glass. A finished piece of flashed glass appears
translucent In the field of optics, transparency (also called pellucidity or diaphaneity) is the physical property of allowing light to pass through the material without appreciable scattering of light. On a macroscopic scale (one in which the dimensions ...
.


See also

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Cased glass Cased glass is a type of glass. It is similar to flashed glass. However, cased glass is made with thicker glass layers. See also * Cameo glass * Stained glass Stained glass is coloured glass as a material or works created from it. Througho ...
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Glass engraving Engraved glass is a type of decorated glass that involves shallowly engraving the surface of a glass object, either by holding it against a rotating wheel, or manipulating a "diamond point" in the style of an engraving burin. It is a subgroup of ...
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Satsuma Kiriko cut glass is a style of cut glass, now a traditional Japanese craft. It was manufactured by the Satsuma clan from the final years of the Edo period to the beginning of the Meiji period (1868–1912). Today, faithful reproductions are produced. History S ...
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Stained glass Stained glass is coloured glass as a material or works created from it. Throughout its thousand-year history, the term has been applied almost exclusively to the windows of churches and other significant religious buildings. Although tradition ...


References

{{Glass-stub * Glass Glass types