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The Application of Magnesium Oxide Board in Fire Doors

Views: 0     Author: Site Editor     Publish Time: 2025-01-21      Origin: Site

With the increasing awareness of building fire safety, fire doors, as an essential part of fire protection facilities, have attracted significant attention. Fire doors not only effectively isolate fire sources and slow down the spread of fire, but also provide valuable time for evacuation. In recent years, magnesium oxide (MgO) boards have been widely used in the manufacturing of fire doors as a new type of fire-resistant material. This article will introduce the advantages and characteristics of magnesium oxide boards in fire doors.


1. What is Magnesium Oxide Board?

Magnesium oxide board, also known as MgO board, is a high-performance, environmentally friendly, and fire-resistant building material made from magnesium oxide, magnesium chloride, silicate, and fiberglass. These raw materials undergo a high-temperature reaction to form the board. Magnesium oxide boards generally have high strength, good moisture resistance, thermal insulation, and excellent fire resistance, making them an essential material in the construction of fire doors, partition walls, ceilings, and other building components.

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2. Fire Resistance of Magnesium Oxide Board

The core advantage of magnesium oxide board in fire doors is its exceptional fire resistance. According to national standards, magnesium oxide boards can withstand high temperatures for extended periods and do not release harmful gases or produce toxic smoke when exposed to fire. Specifically, the fire resistance of magnesium oxide boards can be highlighted in the following aspects:

· High Fire Resistance Rating: Magnesium oxide boards have a fire resistance rating of over 4 hours, effectively resisting high temperatures and flames, making them an ideal material for fire doors.

· Thermal Insulation: Magnesium oxide boards provide excellent thermal insulation, helping to slow the spread of fire and buying more time for people to escape during a fire.

· Non-combustible and Non-melting: Unlike other materials, magnesium oxide boards do not melt or burn under high temperatures, preventing the release of toxic smoke and reducing the harm to people during a fire.


443. Physical Properties of Magnesium Oxide Board

In addition to its excellent fire-resistant properties, magnesium oxide board possesses several physical characteristics that make it highly suitable for use in fire doors:

· High Compressive Strength: Magnesium oxide boards have high compressive strength, making them resistant to external impacts and pressure, ensuring the structural integrity of the fire door.

· Corrosion Resistance: Magnesium oxide boards are resistant to moisture, acids, and alkalis, making them ideal for use in humid or chemically aggressive environments.

· Lightweight: Compared to traditional fire-resistant materials, magnesium oxide boards are lighter in weight, reducing the overall weight of the fire door, making installation and maintenance easier.

· Dimensional Stability: Magnesium oxide boards maintain their dimensional stability over time and are not easily affected by changes in temperature or humidity, ensuring long-term performance.


4. Environmental Friendliness of Magnesium Oxide Board

With growing awareness of environmental protection, the eco-friendliness of building materials is becoming increasingly important. Magnesium oxide boards not only exhibit superior physical and fire-resistant properties but are also environmentally friendly. Made from natural mineral materials, they are non-toxic and harmless, free of harmful substances, and meet modern building standards for green, environmentally friendly materials. Additionally, the production process of magnesium oxide boards is relatively simple, requiring less energy and producing fewer harmful emissions, making it a sustainable material for the future.


5. Application of Magnesium Oxide Board in Fire Doors

Magnesium oxide boards are primarily used in fire doors to enhance their overall fire resistance and safety by leveraging their excellent physical, chemical, and fire-resistant properties. Typically, fire doors are constructed with magnesium oxide boards as the core material, often combined with other fire-resistant materials. These boards are firmly bonded to form a solid, reliable fire door structure.

· Core Material: Magnesium oxide boards can serve as the core material of fire doors, providing fire resistance, thermal insulation, moisture resistance, and improving the overall performance of the fire door.

· Panel Material: Magnesium oxide boards can also be used as the outer panels of fire doors, combined with materials like aluminum or steel to enhance the door’s aesthetics and durability.

· Sealing Performance: Due to the density and stability of magnesium oxide boards, they effectively prevent the penetration of fire gases, enhancing the sealing performance of the fire door.

6. Application Areas of Magnesium Oxide Board Fire Doors

Magnesium oxide board fire doors are widely used in the following fields:

· Residential Buildings: In residential buildings, magnesium oxide board fire doors are commonly used in hallways, basements, and other critical areas to effectively isolate fire sources and ensure the safety of residents.

· Industrial Buildings: In factories, warehouses, and other industrial buildings, fire doors are crucial for fire safety. Magnesium oxide board fire doors can prevent the spread of fire and protect personnel and property.

· Public Buildings: In public spaces such as shopping malls, hospitals, and schools, the use of fire doors significantly enhances overall building safety, protecting lives and property.

· High-Rise Buildings: Magnesium oxide board fire doors, due to their excellent fire resistance, are essential in high-rise buildings, where the need for fire safety is especially  critical.

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7. Conclusion

In conclusion, magnesium oxide board, as a new type of environmentally friendly and fire-resistant material, offers excellent fire performance and other physical properties that make it ideal for use in fire doors. With the increasing demands for fire safety in the construction industry, magnesium oxide board fire doors are poised to play an increasingly important role in the future of building fire protection, creating safer and healthier living environments for all.


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MGOTECH™ Weiran Build is a professional factory manufacturer based on magnesium oxide (MgO) materials that is continuously committed to creating high quality building and decorative materials through technological innovation.

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