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What exactly is Tempered Glass?

Last updated 5 years ago

Glass has been a part of human history for several thousand years. As technology has become more advanced, so too has the glass that we use in our daily lives. Tempered glass, for example, is a relatively recent development that has already found a wide range of uses. Here’s a brief look at tempered glass and how it can keep you safe:

  • Tempering process

Before glass can be tempered, it needs to be thoroughly washed and examined for imperfections. It is then placed into a special oven, where it experiences temperatures of over 1000 degrees Fahrenheit. A series of nozzles then blow air onto the glass, until the outer surface is sufficiently cooled. As the center cools separately, the glass pane becomes stronger and more compact. Another way to temper glass is to apply various chemicals to the surface in quick succession.

  • Advantages

While regular, annealed glass breaks at 6,000 pounds per square inch (psi), tempered glass doesn’t break until it reaches a pressure of 24,000 psi. Since tempered glass is at least four times stronger than normal glass, it’s often in very high demand. Tempered glass also has the advantage of shattering into thousands of tiny, harmless pieces—unlike annealed glass, which can cause serious harm when broken.

  • Applications

Because of its strength and safety, tempered glass has a wide range of practical applications. For example, many shower doors are made of tempered glass, as are refrigerator trays and glass tables. However, by far the most common place for tempered glass is in the side and rear windows of most automobiles. Windshields, however, are made of laminated glass and do not shatter when struck.

If any of the windows in your car are in bad shape, contact Glass on the Move. Driving around without a side or rear window can be embarrassing and make you an easy target for thieves. When you have your auto glass replaced by Glass on the Move, you don’t have to worry about driving to a windshield repair shop—we’ll come to you. For more information, call us today at (510) 338-4791.    

 

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