Flat glass produced by the Float Process. It is often processed to suit many different applications and requirements. The ultimate strength of glass is related to the rate at which it is cooled. There are four main types or strengths of glass
1) Annealed Glass
Annealed glass is a basic product formed from the annealing stage of the float process. And is used as a base product to form more advanced glass types.
2) Heat-Strengthened Glass
Heat-Strengthened Glass is semi tempered or semi toughened glass. When it breaks the fragments are similar in size to annealed glass, but with a greater likelihood of staying together.
This glass is not often used in balustrades or similar structural applications because of its limited strength compared to tempered or toughened glass.
3) Tempered or Toughened Glass
This is the most common type of glass used in balustrades or similar structural applications. With the different cooling rates between the surface and the inside of the glass produces different physical properties, resulting in compressive stresses in the surface balanced by tensile stresses in the body of the glass. So, the glass has four to five times stronger and safer than annealed or untreated glass. when it does break, causes it to produce small, regular, typically square fragments rather than long, dangerous shards that are far more likely to lead to injuries.
4) Laminated Glass
The type of laminated glass most commonly used finished product is two sheets of toughened glass laminated together. it has many advantages. Safety and security are the best known of these, so rather than shattering on impact, laminated glass is held together by the interlayer. This reduces the safety hazard associated with shattered glass fragments, as well as, to some degree, the security risks associated with easy penetration.
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