TecnoAir glass presents a completely new approach to glass heat treatment. The result is not just an improved flat tempered glass, but a revolutionary innovation that changes some of the orthodox rules of glass tempering. TecnoAir takes glass quality to a new level and creates completely new products.

TecnoAir surpasses all existing glass quality standards by breaking records both in terms of glass distortion and iridescence. Thanks to Glaston and its air flotation technology, TecnoAir glass achieves quality that has been beyond reach with roller-type furnaces. With air flotation technology, you can no longer see the difference between float and tempered glass.

TecnoAir glass is the absolute leading product in the market when it comes to glass distortion and iridescence values, achieving optical quality that is similar to that of float glass. One of the greatest advantages of TecnoAir glass is that it does not have any visible roller marks, thanks to the use of air flotation technology. Distortion on the TecnoAir glass is practically non-existent. And the slight distortion that can be found has better optical quality than previously attainable due to longer waves.

Iridescence is no longer an issue

Based on the IriControL™ measurement results (a unique iridescence measurement system that enables a true comparative analysis and helps define which glass is acceptable in terms of iridescence), TecnoAir produces iridescence values of tempered glass close to 100% – unquestionably the best in the market.

TecnoAir’s tempered glass’ iridescence value of close to 100% is far beyond the normal values of 70–90% achieved by standard roller-type furnaces.

Thinnest safety glass in the world

In addition to taking glass quality to the next level, TecnoAir is uniquely positioned to tackle the evolving trend toward super-thin glass without compromising on optical quality. Demand for such products is strong in the architectural, solar and appliance sectors.

Increasing demand for thin glass is driven by a variety of factors: decreased unit weight, increased visible light transmittance, and the benefits of using less material, such as reduced weight and decreased freight costs, to name a few. The list is long, but the direction is clear. To date, thin glass tempering has simply been impractical and excessively expensive with existing technology.

To temper glass as thin as 2 mm, the glass exit temperature needs to be increased to keep the quenching blowers at a reasonable size. TecnoAir’s unique air flotation technology eliminates the rollers from the process, and allows the glass to be heated to a higher temperature without suffering quality defects.

Key Advantages

Record-breaking quality

  • No rollers – no roller marks.
  • Practically wave-free glass, for both clear and Low-E glass.
  • The best iridescence values in the industry provide a quantum leap in architectural glass quality.

Thinnest safety glass

  • The first true opportunity to produce the thinnest safety glass in the world.
  • Highest surface compression levels for thicker glass (4 mm over 200 MPa).
  • 15–50% energy savings in thin glass production (2-4 mm glass).

Highest quality for glass facades and other commercial glazing.

Minimizing glass distortion and iridescence is extremely important for glass facades and other commercial glazing. Iridescence, in particular, has been challenging, because it has been exceptionally difficult to avoid.

Increased efficiency for windows and other residential glass products

TecnoAir meets the increasing demand for lower weight construction frameworks. This demand is especially evident with insulating glass units. A simple example would be using 2 mm thick glass instead of 4 mm to reduce the weight of an insulating glass unit by half.

Surpassing the benefits of chemical strengthening.

Chemical strengthening is sometimes used to process thin glass, but it does not produce safety glass. In addition, chemical strengthening is expensive and inefficiently slow when compared with TecnoAir processing. TecnoAir glass achieves a flatness similar to chemically strengthened glass.

Improved yield for laminations and double-sided coatings.

TecnoAir brings an extra advantage to laminated glass: The excellent flatness of the glass enables high-quality lamination. This can potentially extend the lifetime of the lamination. Thanks to zero distortion, TecnoAir is also a strong choice for producing glass that uses double-sided coatings, such as fireplace glass.

Thinner glass for easier cold-bending processing.

TecnoAir suits the production of thin architectural glass, which can be further processed using cold bending and lamination techniques. Tecnoglass is capable of producing safety glass as thin as 2 mm, which allows for easier cold-bending of the glass. There is no need for processing on a separate glass bending machine. This provides cost-efficient and high-quality production for both exterior and interior glazing.

Fire-resistant glass production as never before.

TecnoAir meets the increasingly stringent global safety criteria for fire-resistant glass, as well as all other demands where tempered glass is recommended or required. The capability to easily produce fire-resistant glass is a built-in property of TecnoAir. Since glass can be heated to a higher temperature than through the standard tempering process, the surface compression values become significantly higher.

TecnoAir is able to temper 4 mm glass with a surface compression of well above 200 MPa, which is impossible for roller-type furnaces without ruining the glass quality.

Energy-efficient tempering.

TecnoAir offers huge energy savings for applications such as fire-resistant and thin glass tempering, where energy consumption is known to be an issue. In fact, TecnoAir achieves the lowest possible energy consumption of any tempering method. This is due to the higher furnace exit temperature, which enables a significantly lower quenching power.


TecnoAIR Specifications



Glass thickness range:

2 mm // 0.07 in (-0.00 mm/in) tempering

230 mm /10.09 in (-0.00 mm/in) tempering


2.8 to 8 mm // 0.11 to 5/16 in tempering

Surface stress level 110 – 130 MPa

Surface stress level minimum 125 MPa (corresponds to over 30pcs in 5cm x 5xm area in fragmentation test)

EN 12150, EN 1863, ANSI Z 97.1, ASTM 1048

Maximum glass sizes
with clear float/low iron glass:
EN 12150, ANSI Z97.1
(2 mm / 0.07 in excluded)
2 mm to 2.8 mm //0.07 to 0.11 in 865 mm x 1300 mm // 34.05 in x 51.18 in
2.8 mm to 3.8 mm // 0.11 to 0.15 in 1000 mm x 1930 mm // 39.37 in x 75.98 in
3.8 mm to 4.7 mm // 0.15 to 0.18 in 1550mm x3000 mm // 61.02 in x 118 in
4.7 mm to 8 mm // 0.18 to 0.31 in 1550mm x3000 mm // 61.02 in x 118 in
Minimun Glass Size EN 12150, ANSI Z97.1
2 mm to 8 mm // 0.07 to 5/16 in 300 x 600 mm // 11.81x 23.62 in

The information contained herein is exclusive property of Tecnoglass, who reserves the right to modify it, including but not limited to the designs and its specifications, without notice.