Iran-Made Nano Coating Blocks Heat by Up to 90 Percent
08 December 2025 | 12:26
16:00 - July 15, 2025

Iran-Made Nano Coating Blocks Heat by Up to 90 Percent

TEHRAN (ANA)- Iranian researchers at a technological company developed a new nano coating to reduce energy consumption in buildings which can be implemented in new projects and existing buildings without the need to replace the glass, and controls up to 90% of solar heat and eliminates the harmful part of the sun's ultraviolet (UV) rays.
News ID : 9398

The company produced a thin and transparent coating that is applied to existing glass with the aim of reducing energy consumption by controlling the entry of solar heat into the building. It is capable of blocking 75% to 90% of infrared (IR) rays, which are the main cause of heating, while also filtering out the harmful part of ultraviolet (UV) rays. At the same time, this coating will maintain the transparency and natural light of the space.

This coating can be applied to new or existing buildings, specially for hot and sunny areas of Iran like the southern and central parts of the country, and can be applied to glass buildings, ministries, houses, restaurants and public spaces. Unlike low-e glass that reflects heat (and may damage vegetation or neighbors), this coating absorbs and manages heat.

“The glass coatings designed by us can control 75% to 90% of the heat transfer that comes through the sun's infrared wavelength. Also, these coatings eliminate the harmful part of the sun's ultraviolet (UV) radiation that causes skin damage and discoloration of surfaces. This technology has been developed over about 3 years,” said Saeed Madarshahi, a specialized facade consultant and a representative of the company.

In a relevant development in 2023, experts at Kaveh Glass Industrial group, an Iranian company, were also able to use nanotechnology to produce energy-efficient glass which reduces costs and increases comfort for customers.

Kaveh Glass Industrial Group has been able to produce energy controlling glass called EcoStar and EcoStar Plus using nanotechnology and receive a NanoScale Certification from Product Evaluation Unit of Iran Nanotechnology Innovation Council (INIC). EcoStar and EcoStar Plus products are industrially manufactured and currently available in the market.

Energy controlling glass controls energy transmission through conduction and radiation simultaneously and makes glass into an extremely effective element to reduce energy consumption, increases brightness, and provides visibility in the building, enhances the beauty of the façade while maintaining visible light transmission. These types of glass windows help materialization of the idea of buildings with large windows that bring inside light and beauty of the surroundings.

Kaveh's EcoStar Glass is a colorless energy controlling glass that is produced by the soft coat method. The metal oxide coating is deposited under vacuum conditions on the glass surface by a sputtering method and this coverage reflects short and long IR waves.

The appearance of EcoStar Glass is like ordinary double glazed windows and performs the same function in both light reflection and light transmission modes.

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