Zawiercie Crystal Glass Factory Ltd.

About glass

Types of glass

Window glass, drinking glasses, various decorations, crockery, vehicle windscreens – all these constitute just a few samples of everyday glass applications. There exists special kind of glass used for huge telescope mirrors and microscopes, as well as safety glass applied in the process of eye glass manufacturing. Building walls are fitted with construction and structural glass as well as glass bricks and heat resistant glass is used in the case of fire places. There also exists bulletproof glass, which can withhold bullets fired from machine guns.

The most popular and most frequently applied contemporary types of glass include:

  • Tempered glass – of increased mechanical resistance, obtained thanks to reverse heating and cooling of glass, one of its properties is that it cracks without shattering the material into pieces, making it very useful in manufacturing of vehicle windows,
  • Glued glass – the behaviour and the characteristics of which are similar to those of tempered glass, constructed out of the few layers of glass glued with the application of transparent organic compound, it possesses large light transparency characteristic, does not shatter into pieces, therefore it is irreplaceable in manufacturing , for instance: safety eye glasses,
  • Reinforced glass – it has a metal grid embedded within its structure, which prevents the pieces of glass from falling out, therefore it is often used within the construction industry,
  • Jena glass (also referred to as boron-silicate glass) – laboratory glass as well as kitchen utility glass manufactured in the city of Jena in Germany, characterised by resistance to the influence of chemical compounds as well as to the influence of high temperatures,
  • Poly-crystal glass – very hard glass, resistant to impact and rapid temperature changes.
  • Quartz glass – this type of glass is obtained only from quartz; it is characterised by small capability of expansion under the influence of heat, high softening temperature, large transparency for UV radiation as well as with the resistance to operation of various chemical factors. Thanks to its characteristics it is applied in optical equipment and chemical devices manufacturing,
  • Sodium glass – the most common and most popular type of glass of the relatively low melting temperature. It has quite a few applications, and is used in the process of manufacturing of the everyday objects, such as: drinking glasses, pots, glass containers (bottles, jars). It is also applied in the process of window manufacturing


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