A1 Class Magnesium Oxide MGO Sulfate Board
Whether you’re constructing a fire-rated commercial building, a moisture-prone residential space, or an industrial facility requiring durable materials, our A1 Class Magnesium Oxide Sulfate Board delivers unmatched safety, performance, and sustainability. Contact us today to learn more about our product specifications, customization options, and global supply capabilities.
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Product Introduction
What Is A1 Class Magnesium Oxide MGO Sulfate Board?
A1 Class Magnesium Oxide Sulfate Board is a high-performance, eco-friendly building material engineered for demanding construction scenarios where fire safety, durability, and environmental compliance are non-negotiable. As a premium variant of MGO boards, it adopts a sulfate-based formulation (magnesium sulfate as the key binder instead of magnesium chloride) to enhance stability, moisture resistance, and long-term performance. Certified to EN 13501-1 A1 Class (the highest non-combustible rating), this board stands out as a reliable choice for commercial, industrial, and residential projects requiring superior fire protection, structural integrity, and low environmental impact.
Advantages of A1 Class Magnesium Oxide MGO Sulfate Board
A1-Class Fire Resistance (Non-Combustible)
Complies with EN 13501-1 A1 standard: Does not burn, release flammable gases, or contribute to fire spread even at high temperatures (up to 1200℃).
Fire endurance: Provides 60-180 minutes of fire protection (depending on thickness and installation), exceeding requirements for fire-rated walls, ceilings, and partitions.
Smoke-free & non-toxic: No toxic fumes or smoke during fire exposure, ensuring safe evacuation and minimizing environmental harm.
Superior Moisture & Corrosion Resistance
Sulfate-based formulation eliminates " (halide efflorescence)" and metal corrosion, making it ideal for high-humidity environments (e.g., bathrooms, kitchens, basements, coastal areas).
Low water absorption: ≤12% (24-hour immersion test), preventing warping, swelling, or mold growth.
Weather-resistant: Suitable for both indoor and semi-outdoor applications (with proper sealing), resisting rain, humidity, and temperature fluctuations.
Eco-Friendly & Healthy
100% inorganic composition: Free of formaldehyde, benzene, volatile organic compounds (VOCs), or radioactive substances (complies with E0/E1 standards and LEED requirements).
Recyclable: Can be crushed and reused as building aggregates, reducing construction waste.
Low carbon footprint: Energy-efficient production process with minimal greenhouse gas emissions.
High Structural Strength & Durability
Tensile strength: ≥5MPa; flexural strength: ≥8MPa (exceeds GB/T 25970-2010 standards), supporting heavy loads and resisting impact.
Dimensional stability: Coefficient of linear expansion ≤0.08mm/m·℃, ensuring no deformation under temperature changes.
Long service life: Resists aging, termites, and rodent damage, maintaining performance for 20+ years in typical applications.
Versatile Processing & Installation
Easy to cut, drill, saw, and nail: Compatible with standard construction tools, reducing installation time and labor costs.
Lightweight: Density of 800-1000kg/m³, lighter than concrete or cement boards, simplifying transportation and on-site handling.
Compatible with multiple finishes: Can be painted, tiled, wallpapered, or coated with decorative materials (e.g., wood veneer, stone veneer) for diverse design needs.
Easy Installation: Magnesium board partition wall panels generally have relatively standard specifications and moderate weight. During construction, conventional installation methods can be adopted, such as fixing through keel frames. The operation is relatively simple, which can improve the construction efficiency, shorten the construction period and reduce the construction cost.
Why Choose Us
Authoritative Certification: Fully passed international and domestic standard certifications such as EN, GB, and ASTM, with third-party authoritative test reports;
Technical Advantages: Exclusively optimized sulfate-based core formula, eliminating halide efflorescence troubles, and performance far exceeding traditional MGO boards;
Customized Services: Full-process customized from size, thickness to surface process, accurately matching project needs;
Full-Chain Support: Provide professional technical solutions, installation guidance, after-sales guarantee, global supply system, and quick response delivery.
What Are The Main Materials Used In A1 Class Magnesium Oxide MGO Sulfate Board
Key Materials
- Magnesium Oxide (MgO): High-purity calcined magnesia (90%+ purity) provides exceptional fire resistance and structural rigidity.
- Magnesium Sulfate (MgSO₄): Environmentally friendly binder that eliminates "halide return" (a common issue with chloride-based MGO boards) and enhances moisture resistance.
- Reinforced Fiberglass Mesh: Multi-layered, alkali-resistant fiberglass mesh embedded in the core and surface improves tensile strength, impact resistance, and dimensional stability.
- Inorganic Fillers: Natural mineral additives (e.g., perlite, vermiculite) optimize fire insulation, reduce density, and enhance soundproofing.
- Waterproofing Agents: Food-grade additives improve moisture resistance without compromising eco-friendliness.
Advanced Production Process
- The board is manufactured via a precision-controlled wet pressing process:
- Raw material mixing: High-purity MgO, magnesium sulfate solution, and fillers are blended into a homogeneous slurry.
- Mesh reinforcement: Alkali-resistant fiberglass mesh is layered into the slurry to form a composite structure.
- Hydraulic pressing: The mixture is pressed under high pressure (150-200kg/cm²) to ensure uniform density and thickness.
- Curing: Controlled temperature (40-60℃) and humidity curing for 7-14 days to achieve full structural strength and stability.
- Surface finishing: Sanding or coating (optional) for smoothness and compatibility with decorative materials.
A1 Class Magnesium Oxide MGO Sulfate Board




Typical Applications
A1 Class MGO Sulfate Board is widely used in commercial, industrial, and residential projects, including:
- Fire-rated structures: Firewalls, fire partitions, elevator shafts, stairwells, and data centers (where fire safety is critical).
- High-humidity areas: Bathrooms, kitchens, laundry rooms, basements, swimming pool surrounds, and coastal buildings.
- Commercial buildings: Shopping malls, hotels, hospitals, schools, office buildings, and airports (complying with strict fire and environmental regulations).
- Industrial facilities: Factories, warehouses, power plants, and chemical plants (resisting moisture, corrosion, and high temperatures).
- Residential construction: Interior walls, ceilings, floor underlays, and exterior cladding (with weatherproof coating).
- Specialty applications: Clean rooms, laboratories, and marine vessels (due to non-toxicity, moisture resistance, and fire safety).
Technical Specifications
| Parameter | Value | Standard Reference |
|---|---|---|
| Fire Rating | A1 Class (Non-Combustible) | EN 13501-1 |
| Thickness Range | 6mm, 8mm, 10mm, 12mm, 15mm, 18mm | Customizable |
| Standard Size | 1220×2440mm, 1220×3050mm | Customizable (max 3660mm) |
| Density | 800-1000kg/m³ | GB/T 25970-2010 |
| Water Absorption (24h) | ≤12% | GB/T 25970-2010 |
| Flexural Strength | ≥8MPa | GB/T 25970-2010 |
| Tensile Strength | ≥5MPa | GB/T 25970-2010 |
| Thermal Conductivity | 0.12-0.18W/(m·K) | GB/T 10294-2008 |
| VOC Emission | ≤0.1mg/m³ | GB/T 39600-2021 (E0 Class) |
| Service Temperature Range | -20℃ to +80℃ | Practical Application Test |
Why Choose Our A1 Class MGO Sulfate Board?
Certified Quality: Complies with international standards (EN, GB, ASTM) and holds third-party test reports for fire resistance, environmental safety, and performance.
Sulfate-Based Advantage: Superior moisture resistance and no halide-related issues, outperforming traditional chloride-based MGO boards.
Customization Capabilities: Tailor thickness, size, surface finish, and reinforcement levels to meet specific project requirements.
Comprehensive Support: Provide technical documents (installation guides, test reports), on-site consultation, and after-sales service for global clients.
Sustainable Solution: Eco-friendly, recyclable, and aligned with green building trends, helping clients achieve environmental certifications (e.g., LEED, BREEAM).
A1 Class Magnesium Oxide MGO Sulfate Board
【A1-Class Non-Combustible Guardian · All-Round Eco-Friendly Building Benchmark】-- The new generation A1 Class Magnesium Oxide (MGO) Sulfate Board is here, redefining the standards for safe, durable, and green building materials! Whether it's commercial landmarks, public welfare projects, or high-quality residential buildings, it can accurately match high-demand construction scenarios, build a solid safety barrier for every inch of space, and empower the future of green buildings.
Sulfate-Based Upgraded Formula, Superior Moisture & Corrosion Resistance for Longer Durability
Adopts high-quality magnesium sulfate as the core binder, completely solving the industry pain points of "halide efflorescence and moisture absorption" of traditional magnesium chloride-based MGO boards. The 24-hour water absorption rate is ≤12%. In humid environments such as bathrooms, kitchens, basements, and coastal high-humidity areas, it does not mold, warp, or fall off. At the same time, it can effectively avoid corrosion of metal components, with a service life of more than 20 years, suitable for indoor and outdoor multi-scenario applications.
100% Inorganic & Eco-Friendly, Breathable Healthy Protection
Composed of 100% inorganic ingredients, zero formaldehyde, zero benzene, zero VOCs, and no radioactive substances. It meets E0-class environmental standards and LEED Green Building Certification requirements. It can be occupied immediately after installation without odor residue, especially suitable for places with high health and environmental requirements such as hospitals, schools, hotels, and residential buildings, creating a pure and safe breathing environment for users.
Super Strong Structural Performance, Convenient & Efficient Construction
Embedded with multi-layer alkali-resistant fiberglass mesh for reinforcement, with tensile strength ≥5MPa and flexural strength ≥8MPa. It has excellent load-bearing performance, outstanding impact resistance and anti-aging ability, and also has excellent dimensional stability, which is not easy to deform under temperature changes. The product is lightweight (density 800-1000kg/m³), can be directly cut, drilled, and nailed with ordinary construction tools. The construction efficiency is 50% higher than that of traditional cement boards, greatly reducing labor and transportation costs.
Versatile Adaptability, Customized to Meet Full-Scenario Needs
Supports multi-thickness options from 6mm to 18mm, standard sizes of 1220×2440mm and 1220×3050mm, and can also customize ultra-long sizes up to 3660mm and special surface processes according to project requirements. Compatible with various decorative materials such as paint, ceramic tiles, wallpaper, and wood veneer, easily adapting to different design styles and realizing the perfect integration of function and aesthetics.
Full-Scenario Coverage, Empowering Diverse Construction Needs
Commercial Buildings: Firewalls, ceilings, internal partitions, and decorative panels of shopping malls, office buildings, hotels, airports, and subway stations; 🏥 Public Welfare: Clean walls, fire partitions, and corridor partitions of hospitals, schools, and nursing homes; 🏡 High-Quality Residences: Moisture-proof walls, ceilings, floor underlays of kitchens, bathrooms, and basements, as well as external wall thermal insulation and decoration integrated panels; 🏭 Industrial Facilities: Fire and explosion-proof walls and equipment protection panels of factories, warehouses, power stations, and chemical parks; 🔬 Special Scenarios: Special wall materials for clean rooms, laboratories, data centers, and marine vessels.
Our Factory
We are a company dedicated to magnesia cement products. Our main products are Magnesium Oxide Boards (MGO Board) for construction and laminated MgO boards with 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.

FAQ
Q: What core advantages does your MGO board offer for commercial and residential projects?
Q: What are the typical applications of your MGO board?
Our MGO board is a versatile building material widely used in:
- Interior/exterior wall cladding, ceiling panels, and partition walls;
- Flooring substrates (especially for wet areas like bathrooms, kitchens);
- Furniture boards, cabinet panels, and decorative substrates;
- Prefabricated buildings, modular homes, and container house renovations;
- Industrial workshops, warehouses, and commercial spaces (e.g., shopping malls, hotels) requiring fireproof and moisture-proof solutions.
Q: Does your MGO board meet international quality and safety certifications?
Q: Can you provide customized specifications (size, thickness, surface finish)?
- Thickness: 3mm – 30mm (standard: 6mm, 8mm, 10mm, 12mm);
- Size: Standard 1220×2440mm (4×8ft), 1220×3050mm (4×10ft), or customized dimensions up to 1220×6000mm;
- Surface finish: Plain, sanded, embossed, or coated (e.g., water-based paint, melamine film);
- Special requirements: Fire-retardant enhanced, moisture-proof upgraded, or lightweight versions for specific applications.
Q: How should the MGO board be installed and maintained?
- Installation: It can be cut, drilled, and fixed using standard woodworking tools (nails, screws, or adhesives). For exterior use, ensure proper sealing of joints and edges to maximize water resistance; follow local building codes for structural support.
- Maintenance: The board is low-maintenance – simply clean with a damp cloth to remove dust or stains. Avoid prolonged exposure to extreme alkaline environments; repair any scratches or damages promptly to prevent moisture penetration. With correct installation, its service life can exceed 20 years.
Q: What is your lead time for orders and shipping terms?
- Lead time: 7–15 working days for standard specifications (MOQ: 1×20ft container); 15–25 working days for customized orders.
- Shipping terms: We support FOB, CIF, CFR, and EXW terms. Port of loading: Shanghai, Ningbo, or Guangzhou (China); we can also arrange delivery to your designated port or warehouse worldwide.
- Packaging: Products are packaged with moisture-proof film + carton boxes + wooden pallets to prevent damage during transportation. Custom packaging (e.g., brand printing, anti-static packaging) is available for bulk orders.
Q: What is the fire resistance rating of fireproof wall board?
Q: What is the price situation of these wall panels?
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