Experts in High-performance Fireproof GLASS

Fire – resistant glass is a special type of glass processed through a special process. It can maintain integrity and heat insulation during the specified fire – resistance test. It is mainly used to control the spread of fire, block smoke and high temperature, and gain time for personnel evacuation and fire rescue.

Factors affecting fire resistance performance

Structural design

Single-piece fire-resistant glass: A single glass raw sheet (such as borosilicate glass, glass-ceramics). It relies on the expansion or crystallization of the glass itself to delay heat transfer and has excellent fire resistance integrity.
Composite Fire - resistant Glass: Fire - resistant interlayers (such as PVB, SGP) are laminated between two or more layers of glass. Under high temperatures, the interlayers melt and solidify, forming a heat - insulating barrier that prevents the penetration of flames and thermal radiation. It combines fire - integrity and heat - insulation properties.
Pouring type fire-resistant glass: Fire-resistant gel is poured into the glass interlayer. When exposed to high temperatures, the gel expands due to heat, forming a heat-insulating foam layer. It has strong heat insulation properties.

Material Selection

Glass substrates:
‣ Float Glass: Easily fragmented, short fire resistance time (≤60 minutes).
‣ Tempered Glass: High strength, and after crushing, it presents obtuse - angled particles, reducing the risk of secondary damage.
‣ Borosilicate Glass: It has strong high-temperature resistance and is suitable for super high-rise buildings or harsh environments.
Fireproof films:
‣ PVB films: Low cost, strong adhesion, but general high - temperature resistance performance (suitable for mid - low - end fire - prevention requirements).
‣ SGP films: Higher strength and strong tear resistance, suitable for large - sized or complex - structured glass.
‣ ceramic fibers: Inorganic materials have a fire resistance limit of over 120 minutes, but their light transmittance is relatively low.

Process Technology

Laminating process：
‣ Uniformity: The thickness of the adhesive layer should be evenly distributed to avoid refractory failure caused by local weak points.
‣ Edge sealing technology: Poor edge sealing can lead to gas penetration and reduce thermal insulation performance.
Pouring process
‣ Gel filling rate: It is necessary to ensure that there are no air bubbles in the interlayer and the gel completely covers the glass surface.
‣ Matching of expansion coefficients: The thermal expansion coefficients of the gel and the glass should be close to prevent delamination at high temperatures.

Structural Design

Material Selection

Process Technology

fire resistant glass products

Technical Parameters

‣ Fire resistance duration: It refers to the maximum time (unit: minutes) that fire-resistant glass can maintain integrity and heat insulation during a standard fire test. 60min/90min/120min

‣ Fire resistance integrity: It refers to the ability of fire-resistant glass to prevent the penetration of flames, smoke, and high-temperature gases during a fire.

‣ Thermal radiation intensity: It refers to the amount of thermal radiation per unit area on the fire-exposed side of fire-resistant glass (unit: kW/m²), reflecting its heat insulation performance.

Application scenarios of soundproof glass

Commercial complex

Atrium fire partition, escape route

fire resistant glass for subway platform screen doors

Transportation hubs

subway platform screen doors, fireproof windows in airport terminals

Public facilities

fire doors in hospital operating rooms, observation windows in school laboratories

Residential

Safety protection for high - rise apartment shelters and sunrooms

FAQ

How to choose the appropriate thickness of fireproof glass?

It is necessary to comprehensively evaluate the building height, the area of fire compartments, and the requirements of local fire protection codes.

Does thicker glass always reduce noise?

Yes and no. Glass is not an ideal conductor of sound, so thicker glass generally makes it harder for sound to pass through. However, sound waves of specific frequencies can cause a “resonance phenomenon” with the glass. This phenomenon amplifies noise, and glass of any thickness has its own resonant frequency. Therefore, no matter how thick the glass is, there will always be a frequency at which the glass actually amplifies noise. This is why soundproof window systems often use two panes of glass of different thicknesses—to counteract each other’s resonant frequencies.

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