Rock Wool Sandwich Panels
Wanxiang Building Materials – Professional Manufacturer & Global Supplier
Rock Wool Sandwich Panels are high-performance fireproof insulation panels designed for industrial buildings, steel structures, warehouses, clean rooms, and commercial facilities.
As a trusted supplier from China, Wanxiang provides factory-direct rock wool sandwich panel solutions with stable quality, competitive pricing, and global export experience.
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Why Choose Wanxiang?
Choosing Wanxiang means working with a reliable long-term partner:
Factory Direct Supply
No middlemen – competitive pricing for global buyers
Strong Export Experience
Serving industrial clients across multiple countries
Engineering Support
Technical guidance for steel structure integration
Custom Manufacturing
Thickness, coating, color, and dimensions fully customizable
Stable Supply Chain
Reliable production for large-scale projects
Global Shipping Support
FOB / CIF / EXW delivery terms available
Technical Specifications
|
Item |
Specification |
|
Product Name |
Rock Wool Sandwich Panels |
|
Core Material |
High-density Rock Wool (Mineral Wool) |
|
Steel Material |
GI / PPGI / PPGL / Aluminum |
|
Thickness Options |
50mm / 75mm / 100mm / 120mm / 150mm / 200mm |
|
Steel Thickness |
0.3 – 0.8 mm |
|
Width |
950 / 1000 / 1150 mm |
|
Length |
Customized (up to 12m+) |
|
Density |
60–120 kg/m³ |
|
Fire Rating |
A1 Non-combustible |
|
Surface Coating |
PE / PVDF / SMP / HDP |
|
Color |
RAL Standard Colors |
Core Technical Advantages
Structural Fire Safety
Non-Combustible Core: The structural mineral wool fibers withstand temperatures exceeding 1000°C. It prevents core-collapse during a fire, releases zero toxic smoke, and creates critical fire compartments.
Insurance Advantages: Utilizing certified Class A1 panels significantly reduces asset insurance premiums for industrial developers and owners.


Advanced Structural Joint Integrity
Precision Interlocking: Available in standard Tongue & Groove or Hidden Fastener systems to ensure structural alignment and weatherproofing.
Delamination Prevention: Our continuous computerized production lines utilize a dual-component polyurethane tracking adhesive, achieving a tensile bonding strength that far exceeds the industry standard (>0.06 MPa).
Industrial Acoustic Dampening
Highly recommended for power plants, generator rooms, and airports. The open-porous structure of the rock wool core reduces ambient machinery noise and airborne sound transmission (Rw ≥ 30-35 dB depending on thickness).

Specialized Application
Our panels are engineered for specific environmental stresses across diverse global markets:
Industrial Wall Systems
Ideal for large-scale steel factories in High-Humidity Zones (Southeast Asia), utilizing anti-microbial and anti-corrosive topcoats.
High-Load Roof Systems
Features deep-corrugated outer profiles designed to resist high wind-loads and heavy snow accumulation.
Fire-Rated Partitions
Used for data centers, chemical laboratories, and power generation facilities requiring strict 2 to 4-hour fire walls.
Acoustic Enclosures
Perforated facing options available for specific industrial noise mitigation projects.
Product Structure
Outer Steel Sheet (Protection Layer)
Material: PPGI / GI / Al-Zn coated steel
Thickness: 0.3 – 0.8 mm
Coating: PE / SMP / PVDF
Function: Weather resistance, corrosion protection, durability
Rock Wool Core (Insulation Layer)
Density: 60 – 150 kg/m³ (customizable)
Thermal conductivity: ≤ 0.043 W/m·K
Fire rating: Class A1 non-combustible
Function:
- Fire barrier protection
- Thermal insulation
- Acoustic absorption
High-Strength Bonding System
Industrial-grade polyurethane adhesive system
Anti-delamination structure design
Suitable for high humidity, coastal, and desert environments
Industrial Capabilities & Quality Assurance
Wanxiang eliminates supply chain risks for global contractors through institutionalized quality control.
Continuous Automated Production
Our state-of-the-art double-belt continuous lamination lines ensure millimeter-level tolerances in flatness, thickness, and cutting precision.
Traceable Quality Control
Every production run undergoes rigorous batch testing for density uniformity, structural shear strength, and adhesive durability under ISO 9001:2015 protocols.
EPC Documentation Kit
We provide complete technical submittal packages including CAD shop drawings, mill test certificates (MTC), independent third-party fire test reports, and structural calculation data.
Customization for Engineering Projects
We provide full OEM & engineering customization:
Panel thickness and density optimization
RAL color coating selection
Anti-corrosion upgrades for coastal/chemical environments
Structural reinforcement for wind load areas
Private labeling for distributors
Engineering drawing and technical support
Packaging & Delivery
Create a comprehensive solution for efficient human theft manag
To ensure safe global transportation:
- Waterproof protective film wrapping
- Edge protection for panel safety
- Container loading optimization
- Export-grade packaging system
Delivery Terms:
FOB / CIF / EXW
Lead Time:
15–25 days (depending on order volume)
Certificates





FAQ

Get Technical Solution & Quotation
Looking for reliable rock wool sandwich panels for your industrial project?
We provide:
Fast quotation within 24 hours
Engineering support for EPC projects
Free technical consultation
Global export shipping service
Send us your drawings or project requirements now and get a professional engineering solution from our team.
We are one of the most professional rock wool sandwich panels manufacturers and suppliers in China for over 25 years. With abundant experience, we warmly welcome you to buy prefabricated rock wool sandwich panels for sale here from our factory. We also accept customized orders.
