Fireproof A1 Class The Construction Industry Magnesium Oxide MGO Sulfate Board
As a Class A1 fireproof, corrosion-resistant, and eco-friendly building material, MGO Sulfate Board addresses the core pain points of the construction industry (fire safety, durability, environmental protection). Its unique advantages (no steel corrosion, excellent moisture resistance, easy construction) make it ideal for high-rise buildings, public facilities, humid environments, and prefabricated projects.
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Product Introduction
Fireproof A1 Class The Construction Industry Magnesium Oxide MGO Sulfate Board
Magnesium Sulfate Board (MGO Sulfate Board) is an upgraded eco-friendly composite building panel developed based on traditional magnesium oxide (MGO) boards. It uses magnesium oxide (MgO) as the main cementitious material, magnesium sulfate (MgSO₄) as the curing agent (replacing magnesium chloride), and is reinforced with alkali-resistant glass fiber mesh and natural fillers.
As a Class A1 non-combustible material (compliant with GB8624-2012 and EN 13501-1 standards), it is specifically designed for the construction industry's high requirements for fire safety, corrosion resistance, and environmental protection. It solves the long-standing problem of steel corrosion in traditional magnesium chloride boards, making it a premium choice for modern green buildings.
Advantages of Fireproof A1 Class The Construction Industry Magnesium Oxide MGO Sulfate Board
01/
Class A1 Fire Resistance (Core Competitiveness)
Certified Non-Combustible: Meets GB8624 Class A1 and European EN 13501-1 Class A1 standards, no combustion, no flame spread.
Extreme Temperature Resistance: Withstands continuous high temperature of 800-1200°C without deformation, no toxic gas (e.g., formaldehyde, carbon monoxide) emission during fires.
Superior Fire Duration: 6mm thick board ≥ 60 minutes, 12mm thick board ≥ 120 minutes, 15mm thick board ≥ 180 minutes (tested by national fire protection laboratories).
Fire Safety Guarantee: No combustible drips during combustion, effectively preventing fire spread in high-rise buildings and public spaces.
02/
Corrosion-Free & Long-Lasting (Unique Advantage)
No Steel Corrosion: Replaces magnesium chloride with magnesium sulfate, chloride ion content ≤ 0.05%, completely eliminating corrosion risk to steel keels, fasteners, and structural steel.
Suitable for Metal Frames: Compatible with light steel keels, stainless steel, and aluminum alloy structures, ideal for long-term use in industrial and civil buildings.
Durable in Harsh Environments: Resists acid, alkali, and salt spray corrosion, suitable for coastal areas, chemical plants, and humid regions (service life ≥ 30 years indoors, ≥ 20 years outdoors with proper protection).
03/
Excellent Moisture & Mold Resistance
Low Water Absorption: Water absorption rate ≤ 5% (far lower than gypsum board's 20%+), no softening or deformation after 72 hours of water immersion.
Mold & Mildew Proof: pH value 8-9 (alkaline), inhibits the growth of mold, mildew, and bacteria (99.9% inhibition rate against Escherichia coli and Staphylococcus aureus).
Humid Environment Applicable: Perfect for bathrooms, kitchens, basements, swimming pools, and coastal buildings without moisture-related damage.
04/
Structural Performance for Construction
Lightweight & High Strength: Density 1.0-1.2g/cm³, 15-20% lighter than cement fiberboard, flexural strength ≥ 18MPa, compressive strength ≥ 25MPa.
Good Dimensional Stability: Linear expansion coefficient ≤ 0.08% (similar to wood), no warping, cracking, or shrinkage even in temperature/humidity changes.
Strong Load-Bearing Capacity: Excellent nail-holding force (≥ 120N), can directly hang cabinets, air conditioners, and other heavy objects (up to 50kg/m²) without additional reinforcement.
05/
Eco-Friendly & Easy Construction
Green & Non-Toxic: Free of asbestos, formaldehyde, benzene, and heavy metals; meets E0-class environmental standards, 100% recyclable.
Easy to Process: Can be sawn, nailed, drilled, and bonded with ordinary tools, reducing construction time by 30% compared to traditional boards.
Space-Saving: Thin design (6-20mm) reduces wall thickness, increasing usable space by 5-8% for buildings.
Sound & Thermal Insulation: Thermal conductivity 0.18-0.22W/m·K, sound insulation capacity 35-45dB (12mm thick), improving building energy efficiency and living comfort.
06/
Sound Insulation and Thermal Insulation:
Due to the dense structure of the panel and the presence of micro-pores, they have certain sound and thermal insulation capabilities:
Sound insulation: A 12mm-thick panel has an air-borne sound insulation capacity of up to 35dB (meeting the sound insulation requirements for residential partition walls);
Thermal insulation: The thermal conductivity is approximately 0.15-0.20W/(m·K), which is better than that of traditional cement boards (0.30-0.40W/(m·K)), and can help improve the energy-saving effect of buildings.
Why Choose Us
Reliable Quality：
Full-process quality inspection, high-purity magnesium materials for raw materials, finished products comply with national standards and EU CE standards, with Class A1 fire resistance, water and moisture resistance guaranteed.
Stable Supply：
2 production bases + 6 automated lines, with a daily capacity of 30,000 ㎡, regular products in stock, urgent orders shipped the same day, and large orders delivered within 7 days.
Flexible Customization：
Supports 3-30mm thickness, maximum 3000×1220mm size and irregular cutting, and can customize special properties (high water resistance, high fire resistance) and appearances.
Professional Technology：
Team of 10+ senior engineers, providing installation guidelines and scenario-based solutions, with regular technical training.
High Cost-Effectiveness：
Cost reduction through large-scale procurement, regular board prices 5%-10% lower than the industry average, tiered rebates and installment payments for long-term customers.
Comprehensive After-Sales：
Lifetime after-sales service, replacement/return for quality issues within 48 hours, response to construction problems within 2 hours, and on-site engineers if necessary.
Fireproof A1 Class The Construction Industry Magnesium Oxide MGO Sulfate Board
Construction Industry Application Scenarios
1. Wall Systems
Firewalls & Partition Walls: High-rise residential buildings, office buildings, shopping malls, and industrial workshops (prevents fire spread between floors/rooms).
Humid Area Walls: Bathrooms, kitchens, basements, swimming pools, and coastal building interiors (moisture-proof, mold-proof, corrosion-resistant).
Clean Room Walls: Hospitals, laboratories, pharmaceutical factories, and food processing plants (sterile, easy to clean, non-toxic).
2. Ceiling Projects
Public spaces (schools, hospitals, theaters, subway stations) and residential ceilings (fireproof, lightweight, no combustible drips).
Suspended ceilings in humid environments (e.g., indoor swimming pools, bathrooms) (moisture-resistant, no sagging).
3. Flooring Substrates
Underfloor heating substrates (uniform heat conduction, high temperature resistance).
Commercial and residential flooring bases (moisture-proof, deformation-resistant, supports heavy loads).
Basement and garage flooring (corrosion-resistant to groundwater moisture).
4. Exterior Wall Systems
Exterior wall backing boards (compatible with external insulation systems, weather-resistant).
Curtain wall base layers and decorative panels (lightweight, high strength, fireproof).
Prefabricated modular building exterior walls (fast construction, long service life).
5. Special Construction Projects
Fire doors and fire shutters (core material, Class A fire resistance).
Tunnels, ships, and offshore platforms (fireproof, corrosion-resistant to salt spray).
Chemical plants and power stations (acid-alkali resistant, fireproof, safe).
Comparison with Similar Building Materials
|
Performance Indicator |
MGO Sulfate Board (Class A1) |
Traditional Magnesium Chloride Board |
Gypsum Board |
Cement Fiberboard |
|---|---|---|---|---|
|
Fire Rating |
Class A1 (non-combustible) |
Class A1 (non-combustible) |
Class B1 (flame-retardant) |
Class A1 (non-combustible) |
|
Steel Corrosion Risk |
None (Cl⁻≤0.05%) |
High (Cl⁻≥3%) |
None |
None |
|
Moisture Resistance |
Excellent (absorption ≤5%) |
Good (absorption ≤8%) |
Poor (absorption ≥20%) |
Good (absorption ≤10%) |
|
Flexural Strength |
≥18MPa |
≥15MPa |
≤8MPa |
≥12MPa |
|
Weight |
Light (1.0-1.2g/cm³) |
Medium (1.1-1.3g/cm³) |
Light (0.8-1.0g/cm³) |
Heavy (1.3-1.5g/cm³) |
|
Construction Efficiency |
High (easy to cut/nail) |
High |
High |
Low (hard to process) |
|
Service Life (Indoor) |
≥30 years |
15-20 years (corrosion-affected) |
5-10 years |
20-25 years |
|
Environmental Friendliness |
E0-class, recyclable |
Contains chloride (pollution risk) |
May contain formaldehyde |
Low formaldehyde |
Summary: MGO Sulfate Board outperforms traditional materials in fire safety, corrosion resistance, moisture resistance, and durability. It solves the corrosion problem of magnesium chloride boards and overcomes the moisture vulnerability of gypsum boards, making it the most cost-effective choice for high-standard construction projects.
Installation Guidelines for Construction of Fireproof A1 Class The Construction Industry Magnesium Oxide MGO Sulfate Board
1. Preparation
Base Layer Requirement: Ensure the base (keels, walls) is flat, dry (moisture content ≤10%), and free of oil, dust, or rust.
Material Selection: Choose appropriate thickness (e.g., 6-10mm for ceilings, 10-15mm for partitions, 12-20mm for exterior walls).
Tools & Fasteners: Use electric saws, drills, and 316 stainless steel self-tapping screws (prevents rust; screw length = board thickness + 15-20mm).
2. Installation Steps
Keel Installation: Fix light steel keels (50×30mm or 75×50mm) vertically with spacing ≤400mm (horizontal keels for ceilings, spacing ≤600mm).
Board Cutting: Cut the board to size with an electric saw, leaving 3-5mm expansion joints between boards (avoids cracking from thermal expansion).
Fixing Boards:
Align the board edge with the keel center, fix with screws at intervals ≤200mm (edge) and ≤300mm (middle).
Sink screw heads 1-2mm into the board surface (do not break the surface fiber mesh).
Joint Treatment: Fill gaps with special MGO board joint compound, paste alkali-resistant glass fiber mesh (width ≥100mm) over joints, and smooth with putty for decoration.
Waterproof Treatment: Apply waterproof sealant to edges in humid/exterior areas (e.g., bathroom corners, exterior wall joints).
3. Key Construction Notes
Do not install in rainy or freezing weather (ensure construction environment temperature ≥5°C, humidity ≤85%).
Store boards in a dry, ventilated area (avoid direct sunlight or water immersion).
For exterior walls, install a waterproof membrane and insulation layer as required (compatible with EPS/XPS insulation boards).
Our Factory
We are a trusted provider of high-performance, sustainable building materials, focused on magnesium oxide (MGO)-based solutions.
Our core product - MGO Boards - offers fire resistance, lightweight with high strength, moisture and mold resistance, and lasting durability, making it ideal for a wide range of architectural and decorative applications.
We collaborate with leading industry associations, including the China Magnesium & Materials Association (CMMA), where we serve as the Chair of the International Exchange Committee, as well as the Magnesium Oxide Building Products Association (MgOBPA) and the Magnesium Oxide Cement Association (MOCA).
Guided by our commitment to innovation and sustainability, we provide high-performance materials that support the future of green construction.
FAQ
Q: What specific fire resistance standards does the Magnesium Sulfate MGO Board meet, and what is its fire resistance duration?
A: The product complies with Class A1 non-combustible standards (GB8624-2012 and EN 13501-1), maintaining no deformation and no toxic gas emission at 800-1200℃. Fire resistance duration increases with thickness: 6mm board ≥ 60 minutes, 12mm board ≥ 120 minutes, 15mm board ≥ 180 minutes, fully meeting fire safety codes for high-rise buildings and public spaces.
Q: What is the core difference between it and traditional magnesium chloride boards? Will it corrode steel structures?
A: The key difference lies in the curing agent (magnesium sulfate replaces magnesium chloride), with a chloride ion content ≤ 0.05%, completely solving the industry pain point of steel keel and fastener corrosion caused by traditional magnesium chloride boards. It can be directly used with light steel keels and stainless steel structures, boasting an indoor service life of ≥ 30 years-far exceeding the 15-20 year lifespan of traditional boards.
Q: What is fireproof wall board?
A: Fireproof wall board is a type of building material that is designed to resist fire and prevent the spread of flames. It is typically made from gypsum, fiberglass, or other non-combustible materials and is used to protect the structural integrity of buildings in the event of a fire.
Q: How does fireproof wall board work?
A: Fireproof wall board works by creating a barrier that slows down the spread of flames and heat. It contains fire-resistant materials that help to prevent the ignition of underlying materials and keep the building structure intact during a fire.
Q: Can it be used in humid/high-salt-fog environments such as bathrooms, basements, and coastal areas?
A: Fully applicable. With a water absorption rate ≤ 5% (only 1/4 of gypsum board), the product shows no softening or deformation after 72 hours of water immersion. Its alkaline pH value (8-9) inhibits mold and bacteria growth (99.9% antibacterial rate). Additionally, it resists salt fog, acid, and alkali corrosion, making it the preferred building material for coastal buildings, underground spaces, swimming pools, and other humid environments.
Q: Is installation complicated? Are special tools or processes required?
A: Installation is highly convenient without the need for special tools or processes: it can be cut with ordinary electric saws, drilled with electric drills, and fixed using 316 stainless steel self-tapping screws (screw spacing ≤ 300mm). It supports sawing, nailing, and bonding; joints can be treated with special joint compound + glass fiber mesh to prevent cracking, saving 30% of construction time compared to traditional boards.
Q: Is the product environmentally friendly? What authoritative certifications does it have?
A: It meets environmental standards: free of formaldehyde, asbestos, benzene, and heavy metals, compliant with E0-class environmental requirements, and 100% recyclable. Authoritative certifications include: Class A1 fire resistance certification (GB8624/EN 13501-1), EU REACH/RoHS certification, and US UL 723 certification. Each batch is accompanied by traceable test reports for strength, fire resistance, and environmental performance.
Q: How does its long-term cost-effectiveness compare to gypsum board and cement fiberboard?
A: It offers superior long-term comprehensive cost-effectiveness. Although the initial purchase price is 20-30% higher than gypsum board, its service life is 3 times that of gypsum board (≥30 years vs. 5-10 years) and 1.2 times that of cement fiberboard (≥30 years vs. 20-25 years), with zero maintenance costs. Additionally, its lightweight design (density 1.0-1.2g/cm³) and space-saving advantage (thinner wall thickness) can increase building usable area by 5-8%, making it far more cost-effective than traditional materials in the long run.
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