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A unique Japanese nano‑technology

It reduces the transmission of infrared (IR) and ultraviolet (UV) radiation while maintaining a clear view and high transmission of visible light.

What you get

Up to 70% reduction of infrared (IR) transmission

A significant reduction of summer overheating and support for thermal comfort in winter as well.

Up to 90% reduction of ultraviolet (UV) transmission

Protection against UV degradation and a longer lifetime of interior materials.

Transmits 85% of visible light (VL)

A clear view and high transmission of visible light.

Transmission diagram: visible light, IR and UV radiation through glass with LUSSO Coating
LUSSO Coating transmits 85 % of visible light while blocking 70 % of IR and 90 % of UV radiation – all in a single transparent coating.
Spectral transmission: LUSSO COATING vs uncoated glass
Spectral transmission at different wavelengths.
Solar reflectivity chart: LUSSO Coating vs film vs plain glass

Solar reflectivity of 6.8%

LUSSO Coating reduces the reflection of sunlight off glass. It is therefore well suited for shop windows and high-rise buildings, where sharp reflections contribute to urban overheating and discomfort at street level.

Significant reduction of condensation

LUSSO Coating is designed to drastically reduce condensation on glass surfaces. This is particularly beneficial because condensation can obstruct the view, complicate maintenance and potentially lead to problems such as mould growth.

Without LUSSO Coating: condensation on the glass
Without LUSSO Coating
significant reduction of condensation
With LUSSO Coating: noticeably less condensation on the glass
With LUSSO Coating

This is a real example from Japan. The degree of condensation depends on many factors (temperature, humidity, air flow, type of glazing and others).

Sustainability

Annual energy savings per 1 m² of glass

128 kWh/m²/year

Annual CO₂ emission reduction per 1 m² of glass

71 kg CO₂/m²/year

The stated values are based on actually measured data.

Compatible with any type of glass

It can be applied to glass of any shape and size, including curved, large-format, frosted or wired glass. Unlike films, there is no risk of glass cracking due to heat.

Application of LUSSO Coating on glass
Temperature difference chart: LUSSO Coating vs uncoated glass
Measurement chart: temperature differences on a glass surface with LUSSO COATING and without any coating.

Temperature difference measurement

Two Thermochron G temperature sensors were placed in the same room approximately 5 cm from the window. One sensor was placed in the middle of a glass surface of about 15 m² onto which LUSSO COATING had been applied. The second sensor was placed with the same orientation on a glass surface without LUSSO COATING.

Parameters

  • Measurement period: 3 September, 7:00 – 9 September, 22:00
  • Thermochron model: #1921G
  • Measurement interval: 60 min
  • Number of records: 386
  • Average temperature (°C): 25.4 °C
  • Maximum temperature (°C): 46.0 °C
  • Minimum temperature (°C): 10.0 °C
  • Standard deviation (°C): 3.5 °C

Long-term durability

Test duration: 450 hours, from 6 August to 26 August 2009

Test method: In a UV weathering resistance test designed to simulate the effects of one year of sun exposure within 30 hours, three glass samples were evaluated for their durability under continuous UV light with wavelengths from 300 nm to 400 nm. The test used continuous radiation with an irradiance of 100 mW/cm² and a source distance of 240 mm.

Tested samples:

  1. Glass with the LUSSO Coating nano‑spray
  2. Glass with a competitor's coating
  3. Glass with window film

The glass treated with the competitor's coating began to show clouding after 180 hours of UV exposure, which corresponds to roughly six years of sunlight. The glass with film began to degrade after just 30 hours, i.e. after roughly one year of sun exposure.

The glass with the LUSSO Coating nano‑spray showed no signs of deterioration even after 450 hours of testing, which corresponds to 15 years of sunlight. These results prove that LUSSO Coating provides a lastingly clear view and above-standard performance over time.

Long-term durability test: LUSSO Coating vs competitor vs film
1. Glass with the LUSSO Coating nano‑spray
2. Glass with a competitor's coating
3. Glass with film
Eco Green Product 2021

Datasheet (English)

Download the English datasheet of the LUSSO Coating nano‑technology.

Would you like to learn even more about LUSSO Coating?

Wondering how LUSSO Coating would perform on your own windows? Planning a renovation or a new build and dealing with overheating or heat loss from the interior? Contact us and we will prepare a no-obligation consultation for you.