Fire Rated Flooring Board

The fire rated characteristics of magnesium oxide (MgO) board as a flooring material primarily derive from its material composition and structural design, as detailed below across multiple dimensions:

 

I. Fire Rating and Standard Certification

Highest Fire Resistance Grade: Magnesium oxide board (also known as magnesium oxide panel) is an A1-grade non-combustible material, the highest fire rating for building materials. This means it does not burn or release flammable gases when exposed to an open flame or high temperatures.

International Certification Reference: Equivalent to the "non-combustible material" grade in European and American standards (e.g., EN 13501-1 in the EU), suitable for venues with extremely high fire safety requirements (e.g., hospitals, schools, commercial complexes).

 

II. Core Principles of Fire Resistance

  1. Non-Combustibility of Materials

  Magnesium oxide board is made from magnesium oxide (MgO), magnesium chloride (MgCl₂), magnesium sulfate (MgSO₄), water glass fiber cloth, etc., through a curing reaction. Its main raw materials contain no combustible components like hydrocarbons, so it cannot burn by nature. When exposed to flames, the board does not carbonize or melt like wooden or plastic floors, but maintains a solid structure.

 

  2. High Temperature Resistance and Thermal Insulation

  The melting point of MgO board exceeds 2,800°C, so it hardly undergoes physical changes in ordinary fires (general building fire temperatures range from 800–1,200°C), effectively blocking heat transfer.

Its thermal conductivity is extremely low (approximately 0.22 W/(m·K)), superior to wooden floors (0.15–0.25 W/(m·K)) and ceramic tiles (1.5 W/(m·K)) in heat insulation performance. This delays temperature rise under the floor or in adjacent areas, gaining time for evacuation and fire fighting.

 

  3. Stability Under Fire

  MgO board does not release toxic smoke or harmful gases (e.g., formaldehyde, carbon monoxide) at high temperatures, meeting fire safety requirements.

  High-quality MGO fire rated floor board does not crack, deform, or powder even in long-term high-temperature environments, maintaining structural integrity and preventing fire spread due to floor damage.

 

III. Fire Resistance Comparison with Other Flooring Materials

Flooring Type	Fire Rating	Combustion Characteristics	Fire Protection Limitations in Application Scenarios
Magnesium Oxychloride Board	A1 non-combustible	Does not burn, does not release toxic gases, and maintains structural stability at high temperatures.	No obvious limitations; suitable for high-fire-protection scenarios.
Solid Wood Flooring	B2 combustible	Easily ignites, produces open flames and thick smoke, and carbonizes rapidly.	Only suitable for residential areas with low fire protection requirements; requires additional fireproof treatment.
Laminated Composite Flooring	B1 flame-retardant	The wear-resistant surface delays combustion, but the base material (density board) still contains combustible components, releasing formaldehyde and other gases at high temperatures.	Unsuitable for high-fire-protection places like hospitals and public buildings.
PVC Flooring	B1 flame-retardant	Softens and releases toxic gases like hydrogen chloride when ignited, with high smoke concentration during combustion.	Poor environmental and fire safety performance, limiting application scenarios.

 

IV. Fire Resistance Advantages in Practical Applications

 

  1. Guarantee of Fire Safety

  In crowded or flammable environments such as commercial buildings and industrial plants, MgO board flooring can serve as a "fire isolation layer" to prevent fire spread through the floor to other areas, reducing fire losses. For example, when data centers use MgO board raised floors, they not only meet anti-static requirements but also maintain structural stability in fires, protecting underlying cables and equipment.

 

  2. Extended Fire Resistance Time

  The fire resistance limit of MgO board can exceed 4 hours (depending on thickness; a 12-mm-thick board maintains integrity for over 4 hours in standard fire resistance tests), far exceeding ordinary flooring materials (e.g., solid wood floors typically have a fire resistance time of less than 30 minutes), meeting the fire resistance requirements of building fire compartments.

 

  3. Compatibility with Other Fire Protection Measures

  MgO board can be used in conjunction with fire retardant coatings, fireproof sealants, etc., to further enhance overall fire resistance. For example, filling fireproof sealants in floor joints can prevent flame spread through gaps, forming a more rigorous fire protection system.

 

 

Product Parameters:

Main Materials	MgO, MgCl2/MgSO4, Glass fiber Mesh
Fire Performance	Non-combustible, No flame spread, No smoke spread,No poisonous gas
Density	1.15-1.35kg/m3,
Flexural Strength	16-40Mpa
Impact Strength	≥3.5 kJ/m2
Moisture Content	≤8%
Shrinkage	≤0.3%
Swelling	≤0.3%
Edge	Square/T&G/Tapered/Beveled
Thickness	15-19mm
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

 

 

 

 

 

 

Why Choose Us:

As the Chair of the International Exchange Committee at the China Magnesium Materials Association (CMMA), we are actively advancing the global use of MGO board as a durable, eco-friendly building material.

We work closely with international organizations such as the Magnesium Oxide Building Materials Association (MgOBPA) and the Magnesium Oxide Association (MOCA) to raise awareness, ensure consistent product quality, and support innovation in the magnesium oxide building materials sector.

Our involvement in standard development spans both national and international levels. We participate directly in the work of the American Society for Testing and Materials (ASTM), contributing to the creation of industry standards. These efforts reflect our long-term commitment to building a standardized, globally integrated, and quality-driven MGO industry.

 

Workshop Information：

 

Specializing in the durability of building materials, we have established ourselves as a leading provider in the local fireproof flooring sector by offering robust, fire-resistant boards.

Our rigorous full-process quality control system ensures consistency at every stage:
   1. Incoming Quality Control (IQC) for raw materials to verify baseline standards
   2. In-Process Quality Control (IPQC) with continuous monitoring of critical production phases
   3. Outgoing Quality Control (OQC) covering final cutting, packaging, and comprehensive checks before dispatch.

All our finished products adhere to national and industry benchmarks, undergoing thorough testing against standards such as GB/T 33544 or T/CMMA8-2020. We also accommodate custom testing requirements specified by clients, ensuring that only inspected and certified products are released for delivery. This commitment to quality has solidified our reputation for reliability in fireproof building solutions.

 

 

FAQ:

 

Q: What is MgO board made from?
A: Magnesium oxide board is a magnesium cement product composed of lightly burned magnesium oxide powder, magnesium chloride or magnesium sulfate solution, cellulose, and glass fiber mesh, processed via roller pressing.

Q: Why is MgO board fire-resistant?
A: MgO board is a mineral-based material that is inherently non-combustible, contributing to its fire-resistant properties.

Q: Why is MgO board stronger than most other sheet products of the same thickness?
A: MgO board is reinforced with glass fiber, which significantly enhances its structural strength compared to other sheet materials of equivalent thickness.

 

Packing and Shipping for Fire Rated Flooring Board:

Boards are carefully packaged to ensure protection during transit.

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