| Safety glass |
| Tempered glass |
 Tempered (toughened) glass is two or more times stronger than annealed glass. When broken, it shatters into many small fragments which prevent major injuries. This type of glass is intended for glass façades, sliding doors, building entrances, bath and shower enclosures and other uses requiring superior strength and safety properties. Production There are two different methods used to produce tempered glass: ? Heat treating: Where the annealed glass is subjected to a special heat-treatment in which it is heated to about 680°C and afterwards cooled. If it is cooled rapidly, the glass is up to four times stronger then annealed glass and its breaks into many small fragments (fully-tempered). If it is cooled slowly, the glass is twice as strong as annealed glass and the fragments of the broken glass are linear and more likely to remain in the frame.
? Chemical Strengthening: The glass is covered by a chemical solution which produces a higher mechanical resistance. Chemically-strengthened glass has similar properties to thermal-treated glass. The product is not generally used for window glass, but more commonly seen in industries where thin, strong glass is needed. |
Last review: Mar, 2007
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Sources on the net |
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Glass gardener
Short definition of tempered glass
Tempered glass
On this site you will find definition of tempered glass, the principle and process of manufacture, strength, applications, visual appearance, imperfections etc.
Republic Asahi
Short definition and applications of tempered glass.
Glass specialist
Difference between tempered and annealed glass.
How Stuff Works
How does safety glass work?
Toughened Glass
Toughened glass or tempered glass is a type of safety glass. From Wikipedia, the free encyclopedia.
Newport Tempered Glass
In general, most glasses can increase their strength and heat resistance through heat treatment or by a chemical process. Heat-treated glass can be classified as either heat-strengthened glass or fully tempered glass.
What is Tempered Glass?
Proprieties of tempered glass, production, security issues, etc.
Scientific American
How is tempered glass made?
Tempered Glass Specifications
Features and advantages, applications, design and installation precautions, standard glazing procedures, safety precautions.
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