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Frosted glass

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(Redirected from Frost glass) Type of translucent glass
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Find sources: "Frosted glass" – news · newspapers · books · scholar · JSTOR (January 2021) (Learn how and when to remove this message)
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Frosted glass creates a blurry image.
Frosted glass windows used in a restroom
James Gillinder & Sons (1860 – c. 1935). "Westward Ho!" Compote, c. 1875. Pressed colorless and frosted glass. Brooklyn Museum
Frosted glass in an office.

Frosted glass is produced by the sandblasting or acid etching of clear sheet glass. This creates a pitted surface on one side of the glass pane and has the effect of rendering the glass translucent by scattering the light which passes through, thus blurring images while still transmitting light. It has 10–20% opacity.

General applications include:

  • To achieve visual privacy while still allowing light to pass through.
  • To create decorative patterns on plain glass by using wax or other inhibitors to retain transparent areas.
  • To distribute light uniformly in a photographic contact printer.
  • To create an airtight seal in tubes.
  • Decorative, aesthetic, or artistic intent.

The frosted glass effect can also be achieved by the application of vinyl film, used as a sort of stencil on the glass surface. "Photo-resist", or photo-resistant film is also available, which can be produced to mask off the area surrounding a decorative design, or logo on the glass surface. A similar effect may also be accomplished with the use of canned frosted glass sprays.

Recycling issue

As a rule, frosted glass is not suitable for recycling through glass bins. This is because the etchants used to produce some frosted glass can leave chemical residue, which can interfere with the recycling process and spoil a whole batch. Frosted glass that was not acid-etched but rather produced by sandblasting is recyclable in principle, however, since it can be hard to tell how a given piece of frosted glass was manufactured, most recyclers will reject frosted glass absent a contract with specific assurances.

See also

References

  1. "Differentiating Between Types of Glass – RecycleNation". 28 October 2010.


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