Annealed Glass

Annealed glass, commonly referred to as float glass, is the most common type of glass found in windows and glass products across Australia. It's produced by melting sand, dolomite, limestone, and soda ash together, and is the first result of the glass manufacturing process that has not been heat-strengthened or tempered.

The process of "annealing" float glass is done by slowly cooling the heated glass after they have been formed in order to relieve internal stresses found within glass. This annealing process is crucial to ensuring durability, and if done incorrectly, it can result in the annealed glass cracking or shattering unexpectedly. Glass first must be heated to an annealing temperature of 454 to 482 degrees Celsius to undertake the annealing procedure.

Annealed glass is highly versatile as it can be cut, polished, edged, drilled, and machined very easily, making it a go-to choice for glazing in Brisbane. All other glass types are made from annealed glass, such as laminated glass, toughened glass, Low-E glass, and safety glass. It's a highly suitable glass type for most residential applications, with glass thicknesses ranging from 4mm to 19mm.

Ordinary annealed glass, which is annealed glass at its base form, has a green hue to it. To remove this hue and create crystal-clear clarity, an additional process is performed to remove the iron content from the sand in the original mixture. This creates a glass type called Ultra Clear Glass.