Class A Fireproof Rockwool Sandwich Panel
- Effective Width: 950/1150mm
- Core Material Density: 80-120kg/m³
- Metal Sheet Thickness: 0.4mm to 0.8mm
- Color of Steel Plate: White/Offwhite/Blue (Ral Color)
- Core Thickness: 50/75/100/150/200mm
- Coating: PE/HDP/PVDF/SMF
- Plating: Hot-galvanize/Aluminium/Stainless
- Sound Insulation: ≥30db
- Flammability 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
Class A fireproof rockwool sandwich panel is high-performance building cladding panels made with high-quality water-repellent rock wool as the core material and color-coated steel sheets, galvanized steel sheets, or stainless steel sheets as the inner and outer finishes. They are manufactured through high-temperature and pressure lamination on an automated production line. The rock wool core material is made from natural basalt and other rocks, melted and fiberized at temperatures above 1450℃, making it a green and environmentally friendly inorganic non-combustible material.
Depending on the production process, Class A fireproof rock wool sandwich panels are divided into machine-made and handmade types. Machine-made panels are formed in one continuous automated production line, resulting in high production efficiency and dimensional stability. Handmade panels use galvanized steel strips and corner fittings for edge sealing, ensuring precise geometric dimensions and good flatness. A polyurethane edge sealing process is also available, using a unique polyurethane material to seal the four edges, further improving the airtightness and watertightness of the panel, effectively preventing rainwater penetration and air leakage.
This product integrates Class A non-combustible fire resistance, long-term fire-resistant insulation, high-strength bending load-bearing capacity, and efficient sound insulation and noise reduction, making it widely applicable to wall cladding and roofing systems for various buildings such as steel structure factories, industrial buildings, logistics warehouses, public buildings, and cleanrooms.
Product Specifications
Class A fireproof rockwool sandwich panel is mainly divided into machine-made and handmade types, with specific specifications as follows:
| Parameter | Machine‑Made Rock Wool Panel | Handcrafted Rock Wool Panel (Cleanroom Grade) |
|---|---|---|
| Panel Thickness | 50–250mm (customizable) | 50mm, 75mm, 100mm (customizable) |
| Effective Width | Standard 1000mm; 500–1200mm customizable | 980mm, 1180mm |
| Length | ≤15000mm (customizable) | Wall panels ≤6000mm / Ceiling panels ≤3000mm |
| Facing Material | Color‑coated steel, galvanized steel, zinc‑aluminum coated steel, color‑coated aluminum | Color‑coated steel, stainless steel, galvanized steel |
| Outer Sheet Thickness | Steel: 0.5–0.8mm / Aluminum: 0.7–1.0mm | 0.4–0.8mm |
| Inner Sheet Thickness | Steel: 0.4–0.6mm / Aluminum: 0.4–0.7mm | 0.4–0.8mm |
| Core Material Density | 120–140 kg/m³ | — |
| Fire Resistance Rating | Class A (A1 – non‑combustible) | Class A (non‑combustible) |
| Thermal Conductivity | ≤0.043 W/(m·K) | 0.04–0.05 W/(m·K) |
| Fire Endurance | 50mm ≥ 60min / 100mm ≥ 120min / 150mm ≥ 180min | Customizable reinforced versions available |
| Water Repellency Rate | ≥98% | — |
| Joint Type | Tongue‑and‑groove, concealed fixing | Mid‑bar, male‑female, tongue‑and‑groove |
Optional panel materials include: PE polyester, SMP, HDP, PVDF (fluorocarbon), antistatic board, conductive board, stainless steel board, antibacterial board, PET board, etc. Surface finish options include: smooth and flat, embossed, wavy, mini wavy, and square wide ribs.
Rockwool Sandwich Wall Panel Parameters
| Panel Thickness | Heat Conductivity (W/m2.K) | Weight(kg) | Load capacity (P=KN/M2) | 0.60 | 0.80 | 1.00 | 1.20 | 1.50 |
| 50mm | 0.75 | 15.53 | L(m) | 3.66 | 3.13 | 2.75 | 2.46 | 2.12 |
| 75mm | 0.53 | 18.37 | L(m) | 4.90 | 4.22 | 3.73 | 3.35 | 2.91 |
| 100mm | 0.41 | 21.21 | L(m) | 5.99 | 5.17 | 4.58 | 4.12 | 3.59 |
| 150mm | 0.31 | 26.88 | L(m) | 7.82 | 6.75 | 5.98 | 5.37 | 4.68 |
Performance Advantages
🔥 Class A1 non-combustible fire resistance, highest safety level
The rock wool sandwich panel uses pure rock wool core material, and its combustion performance meets the GB8624 A (A1) standard, classifying it as a non-combustible material. Rock wool maintains structural stability even at temperatures above 1000℃, remaining non-combustible, producing no toxic fumes, and exhibiting no high-temperature decomposition drips. The rock wool core itself possesses fire resistance exceeding 1000℃, forming a physical fire barrier that effectively prevents the spread of fire.
Outstanding Fire Resistance Performance:
- 50mm Thickness: ≥60 minutes
- 100mm Thickness: ≥120 minutes
- 150mm Thickness: ≥180 minutes
🌡️ Excellent Thermal Insulation Performance
The thermal conductivity of the rock wool core is as low as ≤0.043 W/(m·K), ensuring long-lasting and stable thermal insulation performance. It effectively maintains indoor building temperatures, significantly reducing heating and cooling energy consumption.
💧 Excellent Moisture and Water Resistance Performance
The rock wool core has a water repellency rate of over 98% and extremely low water absorption, preventing moisture, mold, and deformation even in high-humidity environments. The product is water-resistant, moisture-proof, mildew-proof, and corrosion-resistant, ensuring stable performance over long-term use.
⚡ Lightweight and High-Strength with Excellent Flatness
The rock wool core material has a density of 120~150kg/m³, resulting in lightweight and high-strength overall panels. A 100mm thick product can withstand a bending load of up to 2.68KN/m². The panel surface is smooth and aesthetically pleasing, available in various finishes including smooth, embossed, wave-patterned, mini-wave, and square wide-ribbed.
🔇 Excellent Sound Insulation and Noise Reduction Performance
The high-density rock wool core material has excellent sound absorption and noise reduction capabilities. A 50mm thick product can achieve a sound insulation effect of up to 29dB, effectively isolating external noise and providing a quiet indoor environment for various buildings.
♻️ Green and Environmentally Friendly
Rock wool uses natural rock as raw material, and no harmful substances are released during the production and use of the product, making it a green and environmentally friendly new type of building material.
Rockwool Sandwich Roof Panel Parameters
| Panel Thickness | Heat Conductivity (W/m2.K) | Weight(kg) | Load capacity (P=KN/M2) | 0.60 | 0.80 | 1.00 | 1.20 | 1.50 |
| 50mm | 0.75 | 15.75 | L(m) | 3.78 | 3.13 | 3.31 | 2.98 | 2.41 |
| 75mm | 0.53 | 18.68 | L(m) | 4.83 | 4.21 | 4.21 | 3.76 | 3.01 |
| 100mm | 0.41 | 21.62 | L(m) | 5.77 | 5.02 | 5.02 | 4.47 | 3.55 |
| 150mm | 0.31 | 27.51 | L(m) | 7.53 | 6.54 | 6.54 | 5.82 | 4.61 |
Application Scenarios
Class A fireproof rockwool sandwich panel with their comprehensive advantages including A1 fire resistance, moisture resistance, lightweight yet high strength, and excellent thermal and sound insulation, are widely used in the following fields:
Industrial Buildings: Steel structure factories, industrial workshops, heavy machinery processing plants.
Logistics and Warehousing: Logistics parks, warehousing centers, distribution centers.
Public Buildings: Exhibition halls, stadiums, airport terminals, railway stations.
Cleanroom Engineering: Pharmaceutical GMP workshops, electronic cleanrooms, food purification workshops.
Medical Research: Hospital operating rooms, research laboratories.
Cold Chain Facilities: Cold storage, food cold storage.
Others: Data centers, chemical warehouses, mobile homes, and other building scenarios with strict fire resistance requirements.
Canglong Group One-Stop Service
Canglong Group provides customized design, manufacturing, international logistics, and installation guidance services for Class A fireproof rockwool sandwich panel. Our products support standard specifications (thickness 50-200mm, width 500-1200mm) and non-standard customization. Panels can be made from various materials including color-coated steel sheets, stainless steel sheets, galvanized sheets, and aluminum-magnesium-manganese sheets. Our products strictly adhere to the national standard GB/T 23932-2009 and come with a complete set of auxiliary materials such as cleanroom doors and windows, pass-through windows, and ventilation systems, supporting one-stop project delivery. Canglong has over 20 years of experience in steel structure engineering, and our products have obtained international certifications such as ISO, CE, and SGS, conforming to European standards, American standards, and local regulations of various countries, serving customers worldwide.
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.
