A1 Fire Resistant Board

 

MgO board is a high-performance inorganic building material, and its fire resistance is one of its biggest selling points-it's basically irreplaceable when it comes to building fire safety. Let me break down its fire-resistant features, performance standards, how it works in real fires, and the extra perks that come with it:

1. What Makes It Fire-Resistant

The fire resistance of MgO board comes from two key things: its materials and its structure.

First, it's made of inorganic minerals-stuff like magnesium oxide (MgO) and magnesium chloride (MgCl₂) or magnesium sulfate (MgSO₄). These materials don't burn at all. Magnesium oxide, for example, melts at a super high temperature-2800°C. Unlike wood or plastic, it won't catch fire, melt, or give off flammable gases when it's really hot.

Second, when these materials go through the "magnesium-oxygen reaction," they form a hard, dense structure that doesn't break down easily in high heat. Plus, there's a glass fiber cloth layer inside that keeps the board intact, so it doesn't warp from the heat and lose its ability to block fire.

2. Official Certifications & Fire Performance Standards

According to China's national standard GB 8624-2012 (Classification for Burning Behavior of Building Materials and Products), MgO board usually hits Class A1-that's the highest fire resistance rating for building materials. Here's what that means in simple terms:

Non-combustibility test: If you hold a continuous high-temperature flame directly to the board, it won't catch fire or show any signs of burning. The surface might get a little charred, but that doesn't affect how strong it is.

Heat release: The total heat from burning it is no more than 2.0 MJ/kg, and each part of the material releases no more than 1.4 MJ/kg. That's way lower than flammable materials-wood, for example, releases about 15 MJ/kg. So it barely gives off any heat when it's exposed to fire.

Smoke control: When it gets really hot and either burns or breaks down, it produces almost no smoke. And it doesn't release toxic fumes like formaldehyde or carbon monoxide-that's super important for fire safety, since low smoke and no toxicity can save lives.

3. How It Performs in Real Fires

High-temperature and flame resistance: If there's an open flame or really high heat (around 800-1000°C), MgO board won't catch fire, melt, or drip. It can stay intact for a long time. For example, a 10mm thick MgO board used as a partition wall can resist fire for 1 to 2 hours-it depends on how you install it. If you pair it with keels and fireproof cotton, it can last even longer.

Slowing down fire spread: When you use it for walls, ceilings, or partitions, it blocks flames and high heat really well. That buys precious time for people to evacuate and for firefighters to put out the fire, so the fire doesn't spread as fast.

Less secondary harm: Compared to gypsum boards or regular fireproof boards, MgO board doesn't release toxic gases when it's hot. That means fewer people get hurt or die from smoke inhalation in fires, making it safer overall.

4. Why Its Fire Resistance Is Useful in Real Life

Great for high-risk places: Because it has the highest fire rating, it's used a lot in places where fire safety is super important-like high-rise buildings, shopping malls, hotels, hospitals, subways, machine rooms, and power distribution rooms.

Works with other fire protection systems: You can pair it with steel keels, rock wool, fireproof sealants, and more to make fire walls or fireproof ceilings. That makes the whole building even more fire-resistant. For example, an MgO board partition wall with 100mm thick rock wool can resist fire for more than 3 hours.

Balances other great features: It's not just fire-resistant-it's also moisture-proof, insect-proof, doesn't warp easily, and is really strong. Traditional fireproof materials like rock wool get damp easily, drop slag, and make dust. MgO board fixes all those problems, so it's perfect for damp places like kitchens and bathrooms that still need fire protection.

Product Advantages

Excellent Fire Resistance

Our A1 Fire Resistant Board has an A1-level fire rating, all thanks to its unique inorganic material mix. This mix stays stable even when it's really hot-no toxic gases, and it stops fires from spreading fast. In standard fire tests, it can handle temperatures up to 1000°C without catching fire, giving people enough time to get out and firefighters to do their job.

Outstanding Durability

The A1 Fire Resistant Board is made mainly of high-density inorganic fibers, pressed together with a special process to make it super dense and strong. That means it won't warp or crack even after being used for a long time, and it stays reliable even in harsh environments. Its compressive strength is more than three times that of regular gypsum board, so it's stable and long-lasting no matter where you use it.

Superior Water and Moisture Resistance

The unique inorganic material mix of the A1 Fire Resistant Board creates a dense waterproof layer on its surface, so water can't get through. Even in places where humidity is as high as 95%, it stays structurally strong and doesn't change shape-no swelling or warping. That's why it works so well in damp areas.

Excellent Sound and Heat Insulation

This board is also great at blocking sound and heat. Its high-density structure and inorganic materials keep noise out, making your living space quieter. It also has low thermal conductivity, so it stops heat from moving around-meaning indoor temperatures don't fluctuate as much, and you're more comfortable. Its sound insulation is over 30dB, and it's more than 20% better at insulating heat than regular 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	0.8-1.35g/cm3,
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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