Sanded Magnesium Oxide Fireproof Board
Sanded Magnesium Oxide Fireproof Board addresses the limitations of traditional MGO boards—efflorescence and surface roughness—through precision surface grinding. While retaining exceptional fire performance (Class A1), it significantly enhances decorative versatility and environmental durability. Ideal for high-demand sectors like healthcare, electronics, and marine engineering, it delivers both safety and aesthetic precision. Always verify certification reports and ensure strict adherence to joint/edge sealing protocols during installation to maximize performance.
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Product Introduction
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.
Why Choose US
1. Leading Sanding Process Technology：With over 15 years of R&D experience in sanded magnesium oxide boards, we hold 6 patents related to sanding processes. The independently developed "multi-stage progressive sanding technology" ensures the product surface flatness error ≤0.3mm/m, far exceeding the industry average (≤0.8mm/m), while solving the pain points of rough surface and poor adhesion of traditional MGO boards.
2. Intelligent Production Capacity：Equipped with 8 fully automatic intelligent production lines, including 4 dedicated sanding production lines, we have imported sanding equipment from Germany, precision batching systems and constant temperature&humidity curing workshops. The annual capacity reaches 10 million square meters, with product dimensional tolerance ≤±0.5mm and density deviation ≤3%, ensuring consistent quality in mass production.
3. Complete Global Authoritative Certifications：The product has passed more than 25 domestic and international authoritative certifications such as GB 8624-2012 Class A non-combustible, EU CE, US UL 723, UK BS 476, and Australia AS/NZS 3837. It also holds special test reports for environmental protection, wear resistance, moisture resistance, etc. With complete qualification documents, it can directly connect to global foreign trade project bidding.
4. Full-Scenario Customization Capability：We can customize thickness (8mm-50mm), size (maximum customizable 3000×6000mm), sanding roughness (60-150 mesh), surface technology (anti-slip, anti-static, thermal insulation composite) and fire resistance duration according to customer needs. Provide integrated solutions from product design, detailed drawings to on-site construction guidance.
5. Whole-Industry-Chain Cost Control：Owning magnesium oxide mines and procurement channels for glass fiber cloth, quartz sand and other raw materials, we vertically integrate the "raw material-production-sanding-sales" industrial chain, eliminate intermediate links, and the product price is 15%-20% lower than competitors of the same quality, providing customers with cost-effective choices.
6. Global Service Guarantee：With 20 overseas service centers in Europe, America, Southeast Asia, the Middle East, Africa and other regions, we provide 24/7 multilingual technical consultation, localized logistics and distribution, installation guidance and after-sales maintenance. Foreign trade orders support flexible payment terms and a full set of export documents, solving worries about cross-border cooperation.
Magnesium Oxide Wall Board offers unmatched performance with its fire resistance, lightweight and high-strength structure, moisture and mold protection, and superior durability-making it a better choice than traditional materials like gypsum, cement, and wood-based boards.
Fire Retardant Board is a mineral matrix engineered board designed to contain a fire within a compartment of a building by acting as a barrier to stop the spread of heat, smoke, fire and gases. It can be used for steel protection, walls, ceilings, ducts, concrete protection and sealing penetrations and voids.
Fireproof wall board, also known as fire-resistant wall board or fire-rated wall board, is a type of building material designed to resist the spread of fire and provide some level of protection in case of a fire. It is commonly used in construction to create fire-resistant partitions, walls, and ceilings.
Magnesia boards are used in place of traditional gypsum drywall as wall and ceiling covering material and sheathing.
The non-combustible property of magnesium oxide board comes from its inorganic mineral components and stable structure.
Decorative panels, with magnesium oxide board as the base material, are widely used in interior decoration industry. These panels are extensively used in high-end residential, commercial and industrial projects for interior decoration.
As a sheathing board, magnesium oxide board has core competitiveness in non-combustibility, water and corrosion resistance, and structural stability, while also being convenient for construction and environmentally friendly.
Magnesium oxide board demonstrates good mildew-proof characteristics due to its unique advantages. Its alkaline nature resulting from the main raw materials is not conducive to the growth of mold.
As the new generation of inorganic eco-friendly building materials, MGO Exterior Deck boards have become the preferred material for outdoor walkways, scenic platforms, and other outdoor construction projects due to their lightweight strength, fire resistance, moisture protection, and weather resistance.
Sanded Magnesium Oxide Fireproof Board is an upgraded version of traditional MGO board (Magnesium Oxide board) featuring a specialized surface sanding/polishing treatment.
- Sanding Process: During production or post-manufacturing, the board surface undergoes precision grinding using sanding belts or polishing equipment. This removes surface burrs, imperfections, and minor efflorescence residue, resulting in a smooth, dense finish.
- Core Materials: Composed primarily of Magnesium Oxide (MgO) and Magnesium Chloride (MgCl₂), reinforced with plant fibers (e.g., wood shavings), fiberglass mesh, and modifiers. Cured under high temperature and pressure.
Advantages of Sanded Magnesium Oxide Fireproof Board
(1) Fire Performance
Non-combustibility: Complies with Class A1 fire rating (GB 8624). Fire resistance rating reaches 1-4 hours (depending on thickness and system design).
High-Temperature Stability: Resists spalling and melting under fire, maintaining structural integrity to effectively block flame spread.
(2) Enhanced Physical Properties (Benefits of Sanding)
|
Property |
Sanded Board vs. Standard MGO Board |
|
|
Surface Flatness |
Extremely smooth (≤0.3mm/m²), burr-free |
May have minor protrusions/roughness |
|
Surface Density |
Reduced porosity, improved moisture resistance |
Prone to moisture absorption |
|
Decorative Adhesion |
Direct coating/cladding adhesion, no delamination |
Requires surface priming |
|
Efflorescence Resistance |
Grinding removes surface chlorides, reducing efflorescence risk |
Potential efflorescence in humid environments |
(3) Comprehensive Performance
Moisture & Mold Resistance: Dense surface blocks vapor penetration (water absorption ≤15%). Suitable for high-humidity areas (e.g., bathrooms, basements).
Lightweight & High-Strength: Density ≤1,200 kg/m³, flexural strength ≥10MPa. Easy to cut and install.
Eco-Friendly & Non-Toxic: Asbestos-free, zero formaldehyde. Releases no toxic smoke during fire.
Sanded Magnesium Oxide Fireproof Board Comparison with Similar Materials
|
Property |
Sanded MgO Board |
Standard Gypsum Board |
Calcium Silicate Board |
|
Fire Rating |
Class A1 |
Class B1 (Flame-retardant) |
Class A1 |
|
Moisture Resistance |
★★★★☆ |
★★☆☆☆ (Prone to dampness) |
★★★☆☆ |
|
Surface Finish |
Precision-sanded; ready for finish |
Requires skim coating |
May need sanding |
|
Cost Efficiency |
Medium-High |
Low |
Medium-High |
Materials Used in Sanded Magnesium Oxide Fireproof Board
Magnesium oxide is the basic or primary component of MgO boards, but you already know that! It is a naturally occurring compound from magnesium-rich minerals such as magnesite (MgCO3). Magnesium oxide can also be obtained through the extraction of magnesium hydroxide. But, it also involves calcining the hydroxide to form MgO.
Calcining refers to the thermal treatment of solid compounds.
Wood or cellulose fibers come from natural wood or plant sources. Then, manufacturers process these fibers and incorporate them into composite materials. Cellulose fibers actually contribute to structural integrity and flexibility. These fibers allow the boards to be cut and shaped more easily.
Fiberglass mesh is a network of woven fiberglass strands. Manufacturers use it in construction materials to provide reinforcement. The same goes for MgO boards! Fiberglass mesh in MgO boards increases the tensile strength of the boards and enhances durability.
Applications of Sanded Magnesium Oxide Fireproof Board
(1) High-Precision Decorative Substrate
- Walls/Ceilings: Base layer for paint, wallpaper, or tiles. Sanded surface ensures flawless finishes.
- Furniture Countertops: Direct substrate for fire-rated laminates in labs, kitchens, etc.
(2) Fire Separation in Demanding Environments
|
Application Scenario |
Advantages |
|
Medical Cleanrooms |
Dust-free, sanitizable surface; meets fire/sanitation standards |
|
Electronics Facilities |
Anti-static; protects sensitive equipment |
|
Ship Bulkheads |
Salt spray corrosion resistance; mandatory Class A fire rating |
(3) Curtain Walls & Insulation Systems
- Fire Barriers: Cladding for Class A insulation (e.g., rock wool) to block vertical flame spread in facades.
- Curtain Wall Backing: Sanded surface improves adhesion to metal substrates, enhancing air-tightness.
FAQ
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