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Glossary
of Terms and Technical Information
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- Annealed Glass -
- This is flat glass from the manufacturer. It generally has a
breaking strength of about 500psi.
- Edgework -
- Annealed glass is not actually cut, but rather cleaved. This
leaves a sharp edge that is referred to as 'clean cut.' This may
be acceptable for applications where the glass edge will be enclosed
in a frame, but many applications require a fabricated edge.
- Distortion -
- Heat strengthened or fully tempered glass that has been manufactured
in a vertical tempering oven contains small surface depressions
resembling dimples along one edge. Glass that is passed horizontally
through an oven may contain slight surface waves caused by contact
with the rollers. This waviness can be detected when viewing reflected
images from a distance.
- Heat Strengthened Glass -
- This is glass that has been subjected to a heating and cooling
cycle. It is generally twice as strong as annealed glass of the
same thickness and configuration. When broken, the fragments are
generally somewhat larger than for fully tempered glass. This
type of glass is intended for general glazing where additional
strength is desired, but not required the strength of fully tempered
glass.
- Laminated Glass -
- Is a sandwich of glass, plastics, and glass. The constituent
glasses can be a variety of colors and thicknesses, and may be
mirrored, sandblasted, or stenciled. The interior plastics may
also be varied to achieve a desired effect. Laminated glass can
be broken, but does not fracture into pieces, instead remaining
largely intact. It is used in many safety applications where broken
glass shards would be a hazard.
- Tempered Glass -
- Fully tempered glass is up to five times as strong as annealed
glass of the same thickness and configuration. When broken, it
breaks into many small fragments of roughly cubical shape. This
type of glass is intended for general glazing and safety glazing
such as sliding doors, storm doors, building entrances, bath and
shower enclosures, counter tops, showcases, interior partitions,
and other uses requiring superior strength and safety properties.
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Architectural
Tempered Glass
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Store
Fixture and Displays
| Furniture
Escalators
& People Movers |
Boats,
Heavy Equipment, & Agricultural Equipment
Glass
Terms and Technical Information
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