Fire-Rated MGO Board Magnesium Oxide Exterior Wall Panel For Partitions
Fire-Rated MGO Board (Magnesium Oxide Partition & Exterior Wall Board) is classified as Class A1 Non-Combustible Material, the highest fire resistance grade for building materials, passing three key tests: non-combustibility, low calorific value, and low smoke toxicity. This certification makes it an ideal choice for exterior walls of high-rise buildings, firewalls, and high-safety-requirement venues, providing the highest level of fire protection.
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Product Introduction
Jinan Fandeng New Materials Co.,Ltd.
We are a company dedicated to magnesia cement products. Our main products are Magnesium Oxide Boards (MGO Board) for construction and laminated MgO boards for furniture and renovation. Our mission is to provide the world's construction markets with environmentally friendly, high-performance and sustainable green materials.
We work with China Magnesium Materials Association (CMMA) and Magnesium Oxide Association (MOCA) in North America to raise awareness and promote the use of magnesium oxide cement products. We focus on the quality control and consistency of the MGO products. We have been actively involved in developing American Society for Testing and Materials (ASTM) standards related with MGO products.
Why Choose US
1. Top-Tier Fire Resistance & Stable Quality:Specialized in magnesium sulfate-based fire-rated MGO boards, certified Class A1 non-combustible (GB 8624/EN 13501-1), moisture-proof, no efflorescence, corrosion-resistant, with a service life far exceeding traditional panels, safeguarding building safety.
2. Comprehensive International Certifications:Products hold CE, ASTM, ISO and other authoritative international certifications, complying with building codes in different regions worldwide. Mature export procedures ensure your projects pass local quality inspections smoothly.
3. Large-Scale Production & Fast Delivery:Equipped with modern production bases and automated production lines, we boast sufficient annual capacity to support bulk orders with rapid response. Shortest lead time + sound logistics system guarantee on-time project progress.
4. Customized Solutions for Diverse Needs:Offer customized board thickness (3-25mm), dimensions, surface finishes and fire resistance ratings, flexibly meeting the requirements of exterior walls, partitions, special engineering and other application scenarios.
5. Professional Technical Support & Full-Cycle Service:Provide one-stop service from product selection, technical consultation to installation guidance. Our professional engineering team resolves pre-sales and after-sales issues promptly, reducing cooperation risks.
6. Green & Eco-Friendly, Aligning with Future Trends:Formaldehyde-free, asbestos-free and 100% recyclable, our products comply with LEED green building standards, helping customers create eco-compliant projects and enhance brand competitiveness.
Magnesium oxide wall board is a technologically advanced building material that offers superior performance in every category when compared to traditional wood, gypsum and cement based products.
Magnesium Oxide Wall Panels are cementitious substrate products reinforced with magnesium oxide fibre matting.
Fire resistant magnesium oxide wallboard is a new type of refractory material. It is widely used primarily as a wallboard alternative to conventional gypsum-based drywall and plywood.
It is non combustible and fire rated Class A1. With options for up to a 2 hour fire resistance, MgO Board offers an innovative passive fire protection alternative for your construction projects.
MgO board has very good fire performance. It does not spread flames or smoke. It is noncombustible and fire-rated A1, which helps protect homeowners, tenants and building occupants while mitigating damage and loss.
Magnesium oxide wall board is made of magnesium oxide, magnesium sulfate or magnesium chloride, glass fiber mesh, perlite and wood fiber.
It is an upgraded product of fireboard. A properly constructed assembly with our MgO fireproof wall board can achieve a 3-hour fireproof rating.
Fire Resistant Internal Wall Board
Our Fire Resistant Internal Wall Board is a fiberglass reinforced magnesium oxide cement board. It can be used to replace traditional gypsum drywall for wall and ceiling finishes and sheathing.
Fireproof Exterior Wall Panels
Magnesium oxide board is a new type of fire-resistant building material. The main raw materials are magnesium oxide, magnesium chloride/sulfate and perlite.
Fire-Rated MGO Board Magnesium Oxide Exterior Wall Panel for Partitions
MGO Board (Magnesium Oxide Board), also known as magnesium oxide board, magnesite board, or magnesium-based board, is a high-performance building material with magnesium oxide (MgO) as the core component. It is a composite panel manufactured by combining MgO with magnesium chloride (MgCl₂) or magnesium sulfate (MgSO₄) solution, reinforced with glass fiber mesh, and mixed with lightweight fillers.
Advantages of Fire-Rated MGO Board Magnesium Oxide Exterior Wall Panel for Partitions
1. Fire Resistance:
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Class A1 Non-Combustible Material (per European Standard EN 13501-1), completely non-flammable and non-combustion-supporting.
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High temperature resistance (up to 1200°C+), no toxic fumes or gases released during combustion.
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Fire resistance duration of 1-4 hours (depending on thickness and structure).
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Releases water vapor under high temperature (endothermic reaction) to slow down fire spread.
2. Moisture, Mold & Insect Resistance:
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Non-absorbent and impermeable, with moisture resistance far superior to gypsum board.
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Mold-free environment, suitable for humid areas like bathrooms and kitchens.
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Natural resistance to termites and other pests (no nutritional components).
3. Structural Performance:
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Lightweight yet high-strength: Density of approx. 0.95-1.1g/cm³, with strength 2-3 times that of gypsum board.
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Impact-resistant, deformation-resistant, crack-resistant, and durable.
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Excellent screw-holding capacity for easy installation and fixation.
4. Environmental Friendliness:
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Free of asbestos, formaldehyde, benzene, and other harmful substances.
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100% recyclable, complying with green building standards.
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Lower production energy consumption than cement (700-1400°C vs. 1400°C for cement).
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No volatile organic compounds (VOCs) emission.
Manufacturing Process of Fire-Rated MGO Board Magnesium Oxide Exterior Wall Panel for Partitions




Core Classifications:
|
Type |
Main Components |
Features |
Application Scenarios |
|---|---|---|---|
|
Magnesium Chloride-Based MGO Board(Traditional Magnesite Board) |
MgO + MgCl₂ |
Lower cost, but prone to moisture absorption, efflorescence, and metal corrosion |
Dry indoor environments, interior partitions |
|
Magnesium Sulfate-Based MGO Board(New-Generation Magnesium Sulfate Board) |
MgO + MgSO₄ |
Moisture-proof, no efflorescence, non-corrosive to steel, and more stable performance |
Exterior walls, humid areas, long-term engineering projects |
Material Composition & Production Process
1. Key Components:
-
Magnesium Oxide (MgO, approx. 56-58%): Core material providing high strength and fire resistance, with a melting point of up to 2800°C.
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Modifiers: MgCl₂ (traditional) or MgSO₄ (new-type), reacting with MgO to form a cementitious matrix.
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Reinforcing Material: Neutral-alkaline glass fiber mesh for enhanced flexural strength and toughness.
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Filler Materials: Lightweight perlite, plant fibers, etc., reducing weight and improving thermal insulation.
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Additives: Polymer compounds and modifiers to optimize performance and processability.
2. Production Process:
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Mix magnesium oxide powder with modifier solution to form a magnesium-based cementitious mixture.
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Add reinforcing materials and fillers, then stir uniformly.
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Mold forming via rolling or extrusion.
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Cure at room temperature or low temperature (700-1400°C) to form stable panels.
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Cut and surface-treat (sandblasted or smooth finish).
Technical Parameters & Specifications
1. Standard Specifications:
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Dimensions: Common size 1200×2400mm; also available in 1200×2700mm, 1200×3000mm.
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Thickness: 3-25mm (9-12mm for exterior walls, 6-9mm for partitions).
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Density: 0.95-1.2g/cm³, lightweight for easy transportation and installation.
2. Fire Performance Indicators:
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Combustion Performance: Class A Non-Combustible (GB 8624), meeting ASTM E136 standard.
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Fire Resistance Rating: 60-240 minutes (depending on structure), with standard partitions achieving 1 hour.
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Smoke Density: Nearly zero, no heavy smoke obstructing evacuation during fires.
Fire-Rated MGO Board Magnesium Oxide Exterior Wall Panel for Partitions
Application Scenarios
1. Exterior Wall Systems:
Cladding for high-rise buildings, replacing traditional plywood and gypsum board.
Substrate for external thermal insulation systems (EIFS), providing fire protection.
Curtain wall backing boards to enhance structural stability and fire resistance.
2. Interior Partitions:
Fire-rated partitions (over 1 hour fire resistance) for commercial buildings, hospitals, and schools.
Partitions in high-humidity areas like kitchens and bathrooms, with moisture and mold resistance.
Residential compartment walls for sound insulation, thermal insulation, and improved privacy.
3. Special Applications:
Firewalls and staircase enclosures to ensure safe evacuation routes.
Fire compartments in industrial workshops and warehouses to prevent fire spread.
Renovation of old buildings, replacing aging materials to improve safety.
Modular buildings for prefabrication and on-site rapid installation.
Comparison with Traditional Building Materials
|
Performance |
MGO Board |
Gypsum Board |
Cement Board |
OSB Board |
|---|---|---|---|---|
|
Fire Resistance |
Class A1 Non-Combustible, 1-4h fire resistance |
Class B1 Flame-Retardant, ~30min fire resistance |
Good, ~1h fire resistance |
Flammable, no fire resistance |
|
Moisture Resistance |
Excellent, non-absorbent, non-swelling |
Poor, softens and deforms when wet |
Good, but heavy |
Poor, prone to moisture absorption and deformation |
|
Strength |
High, flexural strength ≥15MPa |
Low, easy to break |
High, but heavy |
Medium, easy to deform |
|
Durability |
Excellent, anti-aging, long service life |
Average, short service life in humid environments |
Good, but prone to cracking |
Poor, easy to decay |
|
Environmental Friendliness |
Non-toxic, recyclable |
Average, contains gypsum |
Average, high energy consumption |
Contains glue, emits VOCs |
|
Weight |
Light (6-12kg/㎡) |
Medium (8-15kg/㎡) |
Heavy (25-40kg/㎡) |
Medium (10-18kg/㎡) |
Installation Methods & Key Points
1. Required Materials & Tools:
Materials: MGO boards, rust-resistant screws (316 stainless steel recommended), sealing tape/waterproof adhesive.
Tools: Tape measure, circular saw with diamond blade, electric drill, screwdriver, level.
2. Installation Steps:
Step 1: Measurement & Cutting
Accurately measure the installation area and mark the boards.
Cut with a diamond blade for neat edges.
Step 2: Substrate Preparation
Clean the base layer to ensure it is flat and free of debris.
Check that the wooden/steel stud frame is level and secure.
Step 3: Board Installation
Start from the bottom and install horizontally, aligning board edges.
Fix with rust-resistant screws (spacing: 150mm at edges, 300mm in the middle).
Leave 3-5mm expansion gaps between boards.
Step 4: Joint Treatment
Fill gaps with specialized joint compound and embed glass fiber mesh.
Cover with sealing tape or waterproof adhesive to prevent moisture penetration.
Step 5: Surface Finishing
Can be directly painted, tiled, or covered with decorative panels.
3. Installation Notes:
Must use rust-resistant fasteners (316 stainless steel) to avoid corrosion from chloride ions.
For exterior wall applications, fully seal board joints to form a waterproof barrier.
Wear a dust mask during cutting to avoid inhaling dust.
Fire Rating Standards for Fire-Rated MGO Board Magnesium Oxide Exterior Wall Panel for Partitions
MGO Board (Magnesium Oxide Board) is classified as Class A1 Non-Combustible Material, the highest fire resistance grade for building materials, complying with two international authoritative standards: China's GB 8624-2012 and European EN 13501-1.
1. Detailed Explanation of Chinese Standard (GB 8624-2012)
GB 8624-2012 "Classification for Combustion Performance of Building Materials and Products" classifies materials into the following grades:
|
Grade |
Classification |
Combustion Characteristics |
|---|---|---|
|
Class A(Non-Combustible Materials) |
A1A2 |
Non-flammable, non-combustion-supporting, no flame spreadAlmost no heat contribution, extremely low smoke toxicity |
|
Class B/C(Flame-Retardant/Combustible) |
B1, B2B3 (basically obsolete) |
Flame-retardant, combustible, easy to release toxic smoke |
MGO Board is certified as Class A1 Non-Combustible Material and must pass the following key tests:
-
Non-Combustibility Test (GB/T 5464): No combustion or flame production at 750°C furnace temperature.
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Combustion Calorific Value Test (GB/T 14402): Calorific value ≤2 MJ/kg, providing almost no combustion energy.
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Smoke Toxicity Test: Combustion products are non-toxic, not hindering personnel evacuation.
2. Detailed Explanation of International Standard (EN 13501-1)
European Standard EN 13501-1 is equivalent to China's GB 8624-2012, also classifying materials from Class A1 to F. Among them:
Class A1 (Highest Non-Combustible Grade) Certification Requirements:
-
Pass EN ISO 1182 Non-Combustibility Test: No combustion or carbonization at high temperatures.
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Pass EN ISO 1716 Combustion Calorific Value Test: Extremely low calorific value, not supporting fire spread.
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No burning droplets to avoid secondary fires.
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Smoke Rating reaches s1 (extremely low smoke density) and d0 (no droplets).
3. Why Can MGO Board Achieve Class A1 Standard?
Core Reasons:
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Main component magnesium oxide (MgO) is an inorganic substance with a melting point of up to 2800°C, stable chemical properties, and non-flammable.
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Releases bound water under high temperature, absorbing heat to inhibit fire spread.
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No organic components, so no toxic gases (e.g., formaldehyde, benzene) are released during combustion.
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Stable structure, not softening or deforming at high temperatures, maintaining wall integrity.
4. Fire Resistance Rating (Fire Duration) Indicator
In addition to combustion performance grade, MGO Board also has a fire resistance rating (unit: hours), indicating the time the material can maintain structural integrity and thermal insulation during a fire:
|
Board Thickness |
Typical Fire Resistance Rating |
Application Scenarios |
|---|---|---|
|
6-9mm |
1-2 hours |
Interior partitions |
|
12mm |
2-3 hours |
Exterior walls, firewalls |
|
15-25mm |
3-4 hours |
High-demand fire compartments |
Test Standards: GB/T 9978 or ASTM E119, evaluating the material's:
Integrity (E): No penetrating cracks.
Insulation (I): Backside temperature rise does not exceed the specified limit.
Load-Bearing Capacity (R): Maintenance of structural stability.
5. Comparison of International Certifications
|
Certification Standard |
Fire Rating of MGO Board |
Key Test Points |
|---|---|---|
|
China GB 8624-2012 |
Class A1 Non-Combustible |
Non-combustibility, low calorific value, low smoke toxicity |
|
Europe EN 13501-1 |
Class A1 Non-Combustible |
EN ISO 1182/1716 tests |
|
USA ASTM E136 |
Non-Combustible Material |
No combustion in 750°C vertical furnace |
|
USA ASTM E119 |
1-4 hours Fire Resistance |
Structural integrity and insulation tests |
6. Application Significance
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Class A1 non-combustible certification makes MGO Board suitable for various high-safety scenarios:
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Exterior walls of high-rise buildings: Provide maximum fire protection to prevent vertical fire spread.
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Partitions in commercial buildings: Divide fire compartments to ensure safe evacuation of personnel.
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Hospitals and schools: Public gathering places requiring the highest fire safety standards.
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Industrial workshops: Isolate flammable areas to reduce fire losses.
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Tunnels and subways: Confined spaces requiring non-toxic smoke during combustion.
FAQ
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