As a high-performance inorganic building material, magnesium oxide board (MgO board) boasts fire-resistant properties as one of its core competitive advantages, rendering it irreplaceable in the field of building fire safety. The following elaborates on its fire-resistant nature, performance indicators, practical application performance, and supporting advantages:

 

1. Core Nature of Fire-Resistant Properties

The fire resistance of MgO board stems from the dual guarantees of its material composition and structural characteristics:

 

Non-combustibility of inorganic materials: Its main raw materials are inorganic minerals such as magnesium oxide (MgO) and magnesium chloride (MgCl₂)/magnesium sufate(MgSo4), which are inherently non-combustible. Among them, magnesium oxide has a melting point as high as 2800°C, and unlike organic materials like wood and plastic, it will not burn, melt, or release flammable gases at high temperatures.

 

Stable chemical structure: The hardened body (magnesium cementitious material) formed through the "magnesium-oxygen reaction" has a dense structure, which is not easy to decompose in high-temperature environments. Moreover, the internal glass fiber cloth reinforcement layer can maintain the integrity of the board, preventing it from losing its fire barrier function due to thermal deformation.

 

2. Authoritative Certification and Indicators for Fire-Resistant Performance

According to the national standard Classification for Burning Behavior of Building Materials and Products (GB 8624-2012), the combustion performance of MgO board usually reaches Class A1 (non-combustible material), which is the highest standard for fire resistance in building materials. The specific judgment criteria include:

 

Non-combustibility test: Under the direct 灼烧 of continuous high-temperature flames, the board shows no open fire or signs of combustion, and only slight carbonization may occur on the surface (without affecting structural stability).

 

Heat value limit: The total combustion heat value is ≤ 2.0 MJ/kg, and the heat value of individual materials is ≤ 1.4 MJ/kg, which is much lower than that of combustible materials (e.g., the heat value of wood is about 15 MJ/kg), releasing almost no combustion energy.

 

Smoke control: When burned or decomposed at high temperatures, it produces extremely low smoke density and does not release toxic fumes such as formaldehyde and carbon monoxide, meeting the key requirement of "low smoke and non-toxicity" in fire safety.

 

3. Performance in Actual Fire Scenarios

High-temperature resistance and flame resistance: Under the continuous action of open flames or high temperatures (800-1000°C), MgO board will not catch fire, melt, or drip, and can maintain structural integrity for a long time. For example, a 10mm thick MgO board used as a partition wall can have a fire resistance rating of 1-2 hours (depending on the construction method; the fire resistance can be further extended when combined with keels and fireproof cotton).

 

Delaying the spread of fire: When used as wall, ceiling, or partition materials, it can effectively block the transmission of flames and high temperatures, buying valuable time for personnel evacuation and fire rescue, and reducing the speed of fire spread.

Reducing the risk of secondary injuries: Compared with gypsum boards and ordinary fireproof boards, MgO board does not release toxic gases at high temperatures, avoiding casualties caused by smoke asphyxiation in fires and improving the fire safety factor.

 

4. Application Advantages of Fire-Resistant Properties

Suitable for high-risk scenarios: Due to meeting the highest fire resistance rating, it is widely used in places with strict fire safety requirements, such as high-rise buildings, shopping malls, hotels, hospitals, subways, machine rooms, and power distribution rooms.

 

Compatible with composite fire protection systems: It can be combined with steel keels, rock wool, fireproof sealants, etc., to form composite structures such as fire walls and fireproof ceilings, further improving the overall fire resistance of the building (e.g., the fire resistance rating of an MgO board partition wall combined with 100mm thick rock wool can reach more than 3 hours).

 

Balancing multiple properties: While possessing excellent fire resistance, it also has characteristics such as moisture resistance, insect resistance, deformation resistance, and high strength. It solves the problems of traditional fireproof materials (such as rock wool) being prone to moisture, slag dropping, and dust pollution, making it suitable for fire protection needs in humid environments (such as kitchens and bathrooms).

 

Product Advantages

Excellent Fire Resistance
A1 Fire Resistant Board boasts an A1-level fire resistance rating, attributed to its unique inorganic material formulation. This formulation remains stable at high temperatures, emitting no toxic gases and effectively halting fire spread. In standard fire tests, A1 Fire Resistant Board withstands temperatures up to 1000°C without igniting, providing crucial time for evacuation and firefighting efforts.

 

Outstanding Durability
A1 Fire Resistant Board utilizes high-density inorganic fibers as its primary raw material, pressed through a special process to achieve extreme density and strength. This structure ensures the board resists deformation and cracking over extended use, maintaining stable performance even in harsh environments. With a compressive strength more than three times that of ordinary gypsum board, A1 Fire Resistant Board guarantees stability and longevity across various applications.

 

Superior Water and Moisture Resistance
A1 Fire Resistant Board's unique inorganic material formulation creates a dense waterproof layer on its surface, effectively preventing water penetration. In environments with humidity levels up to 95%, A1 Fire Resistant Board maintains excellent structural and dimensional stability, avoiding issues like swelling or deformation. This characteristic allows it to perform exceptionally well in damp conditions.

 

Excellent Sound and Heat Insulation
A1 Fire Resistant Board offers exceptional sound and heat insulation. Its high-density structure and inorganic material formulation provide superior sound insulation, effectively isolating noise pollution and creating a peaceful living environment. Additionally, the board's low thermal conductivity effectively blocks heat transfer, reducing indoor temperature fluctuations and enhancing living comfort. A1 Fire Resistant Board's sound insulation exceeds 30dB, and its heat insulation performance is more than 20% better than ordinary gypsum board.

 

About A1 Fire Resistant Board

 

Application Scenarios：

 

 

 

Product Parameters:

Main Materials	MgO, MgCl2/MgSO4, Glass fiber Mesh
Fire Performance	Non-combustible, No flame spread, No smoke spread,No poisonous gas
Density	0.8-1.35kg/m3,
Flexural Strength	8-40Mpa
Impact Strength	≥3.5 kJ/m2
Moisture Content	≤8%
Shrinkage	≤0.3%
Swelling	≤0.3%
ScrewHolding Capacity	40-120/(N/mm)
Leachable Chloride	0.1%(MOS),3%(MOC)
Edge	Square/T&G/Tapered/Beveled
Thickness	3-20mm
Standard Sizes	4*8ft/1.22*2.44m(Other sizes can be customized)
Production Capacity	5000 square meters / day
Remark	The above parameters are acceptable to ODM

 

About the Factory：

A1 Fire Resistant Board Factory

 

Our Service：

Our goal is to produce qualified and high quality products and provide excellent service, starting from the design of product formulations to the feedback of quality information after sales and service, so that our customers can be satisfied and assured. We can provide customized products according to customer requirements.

 

Company Advantage (Why Choose Us)：

We specialize in quality control and consistency of MgO products. We have actively participated in the development of ASTM standards related to MgO products. We have joined hands with the China Magnesium Industry Association (CMMA), the Magnesium Oxide Building Products Association (MgOBPA) of North America, and the Magnesium Oxide Association (MOCA) to jointly promote the popularization of magnesium oxide cement products in the construction sector.

 

FAQ:

Q: What is the production capacity of your company?

A: We can produce 5000-6000 square meters per day.

Q: What is your MOQ? Can we order a mix of different sizes?

A: Yes. The MOQ is 100 pieces and mixed loading is also acceptable.

 

Packing And Shipping:

Packaging And Shipping Of A1 Fire Resistant Board

 

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