Rock Wool Core Magnesium Oxide Board
- Effective Width: 950/980/1150/1200mm
- Metal Sheet Thickness: 0.4mm to 0.8mm
- Coating: PE/HDP/PVDF/SMF
- Plating: Hot-galvanize/Aluminium/Stainless
- Color of Steel Plate: White/Offwhite/Blue or Customized
- Core Material: Magnesium Oxide and Rock Wool
- Core Thickness: 50/75/100/125/150/200mm
- Fire Rating: Class A1
- Delivery Time: 7-15 days
- Shipping Port: Qingdao Port
- Payment: T/T, L/C, PayPal
- Service Life: ≥15 years
- Product Origin: Henan, China
Product Details
Rock wool core magnesium oxide board is a high-end composite board that perfectly combines the excellent fire resistance of Class A non-combustible rock wool with the superior structural stability of magnesium oxide board. It’s not simply a matter of stacking materials; rather, it’s formed by bonding two high-density magnesium oxide boards to a high-quality rock wool core under high temperature and pressure using high-strength, environmentally friendly adhesives. This product is specifically designed to address the shortcomings of single-material construction. It overcomes the weaknesses of traditional rock wool boards, such as easy collapse and moisture absorption, while also compensating for the insufficient fire resistance of ordinary organic sandwich panels. It is the ultimate enclosure solution for industrial plants, clean rooms, and public buildings in harsh environments worldwide.
Structural of Rock Wool Core Magnesium Oxide Board
“Sandwich” Composite Structure:
Face Sheets: Both sides use 3-5mm high-density magnesium oxide board (MgO board). This sheet has extremely high impact resistance and moisture resistance, serving as the first line of physical protection.
Core Material: Made of high-quality basalt fiber vertical-fiber rock wool strips, with a density typically between 100-140 kg/m³. The vertical fiber structure effectively enhances tensile strength perpendicular to the board surface.
Adhesive Layer: Uses high-strength, high-temperature resistant, environmentally friendly inorganic adhesives to ensure the panel and core material do not detach or delaminate under high temperatures during a fire.
Connection Method: Primarily uses tongue and groove splicing, combined with fire-resistant sealing strips, to form a continuous and complete fireproof wall surface, blocking the penetration of flames and smoke.
Auxiliary System: Can be perfectly integrated with a light steel keel system to form a stable interior or exterior wall system.
Product Parameters
Parameter Item | Typical Value / Description | Test Standard |
|---|---|---|
Standard Thickness | 50mm, 75mm, 100mm, 125mm, 150mm, 200mm | GB/T 23932 |
Effective Width | 950mm / 980mm / 1150mm / 1180mm / 1200mm (Mechanized / Handmade types) | – |
Max Length | ≤ 6000mm (Wall Panel); ≤ 3000mm (Roof Panel); Customizable | – |
Rock Wool Core Density | 80 – 160 kg/m³ | GB/T 11835 |
MgO Board Density | 0.85 – 1.5 g/cm³ | JC688 / GB/T 7019 |
Thermal Conductivity | ≤ 0.038 – 0.045 W/(m·K) | GB/T 10294 |
Thermal Transmittance (U-value) | ≤ 0.73 W/(㎡·K) | – |
Reaction to Fire | Class A1 / Class A (Non-combustible) | GB 8624 / EN 13501-1 |
Fire Resistance Rating | 1 – 4 Hours (50mm≥120min; 100mm≥240min) | GB/T 9978 / ASTM E119 |
Bending Capacity | ≥ 0.9 – 1.25 kN/㎡ | GB/T 5237 |
Bonding Strength | ≥ 0.15 MPa | – |
Delamination Resistance | 85% – 98% | – |
Sound Transmission Loss (Rw) | 29 – 48 dB (Varies by thickness & structure) | ISO 717/82 |
Water Repellency | ≥ 98% (Hydrophobic treated core) | – |
Flexural Strength (MgO Face) | ≥ 12 – 25 MPa | GB/T 7019 / JC688 |
Dimensional Tolerance | Diagonal deviation ≤3mm; Length deviation ≤1% | – |
Screw Withdrawal Resistance | ≥ 25 – 70 N/mm | JC688 |
Features of Rock Wool Core Magnesium Oxide Board
- Dual Class A Fire Resistance: Both the magnesium oxide board and rock wool are inorganic non-combustible materials; the combined fire resistance rating can reach 1-4 hours. It does not burn, melt, or release toxic fumes when exposed to fire, and its unexposed surface experiences extremely low temperature rise, buying valuable time for evacuation and fire rescue.
- Superior Hydrophobic and Moisture Resistant Properties: The dense and impermeable magnesium oxide (MgO) panel effectively blocks external moisture intrusion, protecting the internal rock wool core from moisture. This solves the industry pain point of traditional rock wool boards absorbing moisture and settling in humid environments, leading to insulation failure and structural damage.
- Superior Structural Integrity: The MgO board possesses extremely high rigidity and flexural strength, allowing the entire board to remain straight even over long spans, resisting deformation and warping. It also exhibits strong impact resistance and can withstand frequent cleaning and maintenance.
- Highly Efficient Thermal and Acoustic Performance: The rock wool core material has an extremely low thermal conductivity and excellent sound absorption and noise reduction capabilities. Combined with the insulating properties of the MgO board, it achieves both thermal insulation and sound insulation. Eco-Friendly: Composed entirely of inorganic materials, free of asbestos, formaldehyde, benzene, and radioactive substances. It produces no pollution during production and use, meeting international green building certification standards such as LEED.
Advantages of Rock Wool Core Magnesium Oxide Board
Global Compliance: Easily meets the most stringent global building fire safety codes, including US ASTM E119, UK BS 476, EU EN 13501-1, and Middle Eastern Civil Defense standards. It is a test-free material for high-rise buildings, densely populated areas, and flammable and explosive zones.
Low Lifecycle Cost: Despite a higher initial investment, its extremely long service life (up to 30 years or more), extremely low maintenance requirements, and non-combustible properties significantly reduce insurance premiums and replacement costs, resulting in a very high return on investment.
Easy Installation: Compared to brick walls, it is more than 60% lighter and easier to cut, drill, and install. Dry construction methods offer rapid construction speed and are less affected by weather, significantly shortening project timelines.
Corrosion Resistance: Exhibits strong resistance to acids, alkalis, salt spray, and other chemicals, making it particularly suitable for coastal areas and chemical industrial parks.
Application Scenarios
Ultra-High Cleanliness Environments: Biopharmaceutical GMP workshops, hospital operating rooms, integrated circuit cleanrooms (with extremely high requirements for fire resistance and cleanliness).
High-Risk Industrial Plants: Petrochemical workshops, lithium battery production bases, spray painting and baking workshops, flammable and explosive material warehouses.
Public and Commercial Landmarks: Airport terminals, high-speed rail stations, large shopping malls, data centers (IDC), libraries, archives (places requiring long-term data preservation).
Transportation Hubs: Subway tunnel walls, high-speed rail carriage partitions, ship bulkheads, offshore drilling platforms.
Special Buildings: Fireproof partition walls, elevator shafts, fireproof ceilings, and smoke extraction duct cladding.
Canglong Group Manufacturing & Service
Canglong Group boasts multiple internationally leading automated production lines for rock wool core magnesium oxide board, strictly adhering to the ISO9001 quality management system. We not only provide standard boards but also offer customized thickness, density, and surface treatments (such as antibacterial coatings and antistatic coatings) according to customer needs. Combined with our robust global logistics network and professional technical guidance team, we ensure your projects receive the most reliable fire protection anywhere in the world.
Sandwich Panel Production Workshop
Sandwich Panel Packing & Shipping
All the products are loaded at the loading site of our factory using crane and forklift by our skilled workers, who will prevent the goods to be damaged. And all the structure components, panels, bolts and sorts of accessories will be well packed with standard package and it is suitable for ocean transport.
Inspection: 50% inline inspection and 100% full final inspection, make sure all output w/o any mistake.
Packing: Per customer's requirements or per product sizes, full protection packing.
Shipping: Per customer's requirements or per container sizes.
Unloading: We package it as a whole and can be easily pulled out at once with a forklift, which is very convenient.
Our Certificates
Our sandwich panel certificates include EU CE certification, BPS certification, and ICC certification.
Application of Sandwich Panels
Usage scenario: Insulated sandwich panels are used as exterior walls and interior partitions, installed vertically or horizontally on single span or multi span structures. Such as industrial buildings, steel frame structures, warehouses and logistics centers, commercial buildings and offices, fire-resistant buildings, agricultural and livestock buildings, sports halls, exhibition halls, factories, garages, hangars, barns, prefabricated houses, cold storage, clean room, etc.
We provide the following RAL color card colors for your reference. For other colors, please compare the Raul color card colors.
Note: The above color card has a slight deviation due to printing reasons, please refer to the actual products.
If you purchase metal sandwich panels from Canglong Group, we will also provide some accessory products, including self tapping nails, rivets, waterproof caps, polyurethane glass glue, mouth and corner accessories, outer ridge tiles, waterproof eaves, external and internal corners, eaves edging, plugs, door and window edging, purified aluminum profiles, etc.
High-quality Raw Materials
We strictly select high-quality suppliers. All color steel coils and core materials are from China top 500 companies and have undergone strict quality inspections to ensure the basic quality of the products.
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Advanced Production Equipment
The factory is equipped with advanced production equipment, including automated production lines, cNc cutting machines and high-precision pressing equipment, to ensure that the production process of each color steel sandwich panel is accurate and stable.
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Mature Supply Solutions
One-stop supply of all accessories for sandwich panel installation, standardized packaging process, to avoid friction or damage of sandwich panels on the road, easy for customers to unload, saving time and money for customers.
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Q1: What are the main applications of polyurethane sandwich panels?
A: Polyurethane sandwich panels are commonly used for insulation and construction in various building types, including residential, commercial, industrial, and agricultural structures. They are suitable for walls, roofs, ceilings, and floors.
Q2: What are the advantages of polyurethane sandwich panels?
A: Polyurethane sandwich panels offer excellent thermal insulation properties, lightweight construction, high strength-to-weight ratio, versatility, weather resistance, fire resistance (with appropriate treatments), aesthetic appeal, and cost-effectiveness.
Q3: How do polyurethane sandwich panels contribute to energy efficiency?
A: Polyurethane sandwich panels provide effective thermal insulation, reducing heat transfer through walls and roofs. This helps maintain comfortable indoor temperatures and reduces the energy required for heating and cooling, thus contributing to energy efficiency and lower utility bills.
Q4: Are polyurethane sandwich panels environmentally friendly?
A: Polyurethane sandwich panels can be environmentally friendly when produced using sustainable manufacturing practices and materials. Additionally, their energy-saving properties contribute to overall environmental sustainability by reducing energy consumption and greenhouse gas emissions.
Q5: How durable are polyurethane sandwich panels?
A: Polyurethane sandwich panels are known for their durability and resistance to various environmental factors, including weather, moisture, and corrosion. Proper installation and maintenance can further enhance their longevity.
Q6: Are polyurethane sandwich panels easy to install?
A: Yes, polyurethane sandwich panels are relatively easy to install compared to traditional building materials. Their lightweight nature and standardized dimensions facilitate quick and efficient installation, resulting in reduced construction time and labor costs.
Q7: Can polyurethane sandwich panels be customized?
A: Yes, polyurethane sandwich panels can be customized to meet specific design requirements, including color, finish, thickness, and profile. Customization options allow architects and builders to achieve desired aesthetics and performance characteristics for their projects.
Q8: How do I maintain polyurethane sandwich panels?
A: Maintenance requirements for polyurethane sandwich panels are minimal. Regular cleaning with mild detergent and water, inspection for any damage or deterioration, and prompt repair of any issues are recommended to ensure optimal performance and longevity.
Product Features
The metal sandwich panels produced by Canglong are insulated, fire-resistant, environmentally friendly, earthquake resistant, and durable.
