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Guangzhou glass curtain wall facade manufacturers of coated glass light transmission standards?

Release time:

Oct 29,2024

We are a coated glass factory in Guangdong, which can provide you with high cost-effective coated glass prices. We also have excellent coated glass processing technology and experienced coated glass installation methods. The application effects of coated glass are industry standards.

The light transmission standard of coated glass mainly depends on its specific type and application field. The following is an overview of coated glass transmission standards based on relevant standards and common types:

Overview of 1. National Standard

The national standard for coated glass is GB/T18915, which is mainly divided into two parts: the first part is for sunlight control coated glass, and the second part is for low-radiation coated glass. These standards specify a number of performance indicators of coated glass, including size allowable deviation, thickness allowable deviation, bending, diagonal difference, appearance quality, optical performance, color uniformity, wear resistance, acid resistance, alkali resistance, etc.

2. light transmission performance standard

Overall light transmittance range:

Different types of coated glass have different light transmittance, but generally between 20% and 90%. This mainly depends on the coating material, thickness, process and other factors.

Specific types of light transmittance:

Heat-insulating coated glass: The light transmittance is usually between 20% and 40%. This kind of glass is mainly used for occasions that require heat insulation, such as hot summer areas or south-facing windows of buildings.

Low-emissivity coated glass (Low-E glass): The light transmittance is generally between 30% and 70%. This glass can effectively reduce the penetration of infrared rays, reduce the heat loss in the winter room, and improve the heat preservation effect.

Anti-ultraviolet coated glass: The light transmittance can reach 60% to 90%. The main function is to block ultraviolet rays and protect indoor items and personnel from ultraviolet damage.

Specific band transmittance:

According to GB/T18915.1-2002 standard, the transmittance of coated glass in the visible light band (400 ~ 760nm) should not be less than 70% (this value is mainly for transparent and colored coated glass, and is a general requirement, specific products may be different).

In the ultraviolet band (200 ~ 380nm), the transmittance of the coated glass should not exceed 0.50% to effectively block ultraviolet rays.

In the infrared band (780 ~ 2500nm), the infrared transmittance of the coated glass should not exceed 50%, which helps to reduce heat transfer.

3. considerations

The light transmittance of coated glass is not only affected by the coating itself, but also by the glass substrate, production process, use environment and other factors.

When selecting coated glass, factors such as light transmittance, heat insulation performance, and UV protection performance should be comprehensively considered according to specific needs and application scenarios.

It should be noted that the above-mentioned light transmittance ranges and values are only general descriptions, and the light transmittance of specific products may vary from manufacturer to manufacturer. Therefore, when buying and using coated glass, it is recommended to consult the product manual or consult a professional for accurate information.

Today's sharing is over. If you want to know the cost of Guangdong Haibo coated glass, you can consult Haibo Special Glass to help you solve your doubts about the cost of Guangdong Haibo coated glass!

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