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Glass products encompass a wide range of items that serve various purposes in residential, commercial, and industrial areas.

Insulated Glass

Insulated glass, also known as double glazing, is a type of glass construction consisting of two or more glass panes separated by a vacuum or gas-filled space. It enhances thermal insulation, and soundproofing, and reduces condensation.

Advantages of Insulated Glass

  • The main advantage of insulated glass is that it helps in insulation by reducing heat gain and heat loss. Adding multiple layers of glass with gas infill further protects the windows and building from heat loss.
  • Another advantage of insulated glass is that it increases the energy efficiency in buildings. The reduced heat transfer lowers the electrical power consumption required for heating or cooling of the space. This drastically cuts down the electrical bills, especially in areas subjected to extreme heat or cold. The use of Low-E glass and reflective coatings can further improve the efficiency of the windows by further limiting heat transfer.
Insulated Glass
Triple Pane WindowTriple Pane WindowDouble Pane Window

Heat Strengthened Glass

Heat-strengthened glass is similar to tempered glass except that the cooling is done at a much slower pace. Annealed glass is heated to approximately 650-700 º C, but the cooling process is slower than that for tempered glass. Heat-strengthened glass is about twice as strong as annealed glass of the same size and thickness.

Heat-strengthened glass is semi-tempered glass that retains the normal properties of ordinary float glass. Heat Strengthened glass has been strengthened thermally by inducing a surface compression of 6000 to 9000 psi as compared to a range of 11000 to 20000 psi in the case of fully tempered glass.

Heat strengthening adds strength to the glass while limiting the change in its breakage characteristics. The cooling process places the glass surfaces in a state of high compression and the central core in a state of compensating tension.

Advantages of Heat Strengthened Glass

  • Has a break pattern of large pieces, very similar to that of annealed glass. The shape and size are dependent upon the applied load, the origin of the break, the temperature of the glass, etc.
  • Is rarely prone to spontaneous breakage due to machining or other edge treatments.
Tempered Glass

Tempered Glass

Tempering is a process in which pre-processed glass is uniformly heated in a Roller Hearth Oscillating Tempering Furnace. Uniform heating is obtained by conduction, convection, and radiation.

Typically, the glass is heated to about 620˚C, with a specified duration of time ( usually at about 40 secs/mm thick of the glass), then rapidly cooled or quenched by simultaneously blowing an evenly distributed cool air using high-pressure air nozzles on both surfaces.

When the hot glass is cooled rapidly, the surface of the glass cools faster and hence builds compressive stresses while the center of the glass is still under expansion and hence builds tensile stress.

Tempered Glass

Advantages of Tempered Glass

  • Safety: Tempered glass is much stronger than regular glass and shatters into small, blunt pieces, reducing the risk of injury.
  • Durability: Tempered glass is more resistant to thermal stress, impact, and scratches, making it ideal for high-traffic areas.
  • Heat resistance: Tempered glass can withstand higher temperatures without cracking, making it suitable for use in ovens, stovetops, and fireplace doors.
  • Easy maintenance: Tempered glass is easy to clean and maintain, requiring minimal effort to keep it looking its best.
  • Resistance to environmental factors: Tempered glass is more resistant to environmental factors such as wind, rain, and hail, making it suitable for outdoor applications like glass railings and pool fences.