Product Overview
The Class A Fire Rated Rock Wool Sandwich Panel is a high-performance non-combustible building envelope system designed for industrial facilities where fire safety, energy efficiency, and structural reliability are critical.
It is widely used in steel structure buildings and EPC engineering projects requiring compliance with international fire safety standards.
The system combines:
- High-density basalt rock wool core
- Galvanized / Al-Zn coated steel facings
- Continuous automatic lamination production technology
Technical Specifications
|
Item |
Specification |
|
Product Type |
Rock Wool Sandwich Panel |
|
Fire Rating |
Class A / A1 Non-combustible |
|
Core Material |
Basalt rock wool |
|
Density |
80–120 kg/m³ |
|
Steel Thickness |
0.4–0.8 mm |
|
Panel Thickness |
50 / 75 / 100 / 120 / 150 / 200 mm |
|
Effective Width |
950 / 1000 / 1150 mm |
|
Length |
Up to 12–15 m (customized) |
|
Thermal Conductivity |
0.036–0.042 W/m·K |
|
Surface Coating |
PE / PVDF / SMP / HDP |
|
Steel Type |
Galvanized / Al-Zn coated steel |
|
Joint System |
Hidden / exposed fastening system |
Core Engineering Advantages
Class A1 Non-Combustible Fire Protection
Inorganic Mineral Fiber: Naturally non-combustible with a melting point exceeding 1000°C.
Zero Propagation: Ensures zero flame spread, zero smoke development, and absolutely no toxic gas emissions or molten dripping during fire exposure.
Regulatory Compliance: Fully meets international structural fire safety codes for hazardous, high-risk, or high-occupancy industrial zones.
Superior Thermal Insulation Efficiency
Low Thermal Conductivity: Rated at 0.036 to 0.042 W/m·K, drastically reducing HVAC loads and energy consumption.
Climate Resilience: Maintains stable, long-term thermal resistance (R-value) under extreme tropical heat or sub-zero arctic environments.
Advanced Acoustic Performance
Sound Attenuation: The high-density open-porous fiber structure effectively absorbs airborne sound waves.
Noise Mitigation: Highly recommended for high-noise industrial environments, generator rooms, and heavy manufacturing workshops to optimize the internal working environment.
Exceptional Structural Stability
High Shear Strength: Superior adhesive bonding between the steel skins and the perpendicular rock wool fibers prevents delamination under stress.
Wind Load Resistance: Engineered to withstand severe wind loads, making it ideal for large-span steel structures and high-rise industrial facades.
Target Applications
Industrial Fire Safety Protection Buildings (Chemical storage, manufacturing plants)
EPC Contractor Steel Structure Projects (Pre-engineered steel buildings, aircraft hangars)
Logistics & Warehouse Systems (E-commerce fulfillment centers, heavy-duty logistics hubs)
Petrochemical & Energy Facilities (Refineries, power plants, substations)
High-Performance Commercial Buildings (Data centers, airport terminals, shopping malls)
Recommended Thickness By Functional Application
- 50 mm -> Internal partition walls, cleanroom enclosures, light steel temporary offices.
- 75 mm -> Standard commercial complexes, multi-story office buildings, light industrial workshops.
- 100 mm -> Heavy industrial warehouses, manufacturing plants with standard HVAC requirements.
- 120 mm -> E-commerce logistics hubs, agricultural processing plants, temperature-controlled facilities.
- 150 mm -> Petrochemical processing zones, high fire-risk chemical warehouses, power plants.
Strict Quality Assurance Protocol
Every production batch undergoes meticulous testing in our internal laboratory before dispatch:
Raw Material Verification
Mill test certificate validation for steel coils and density checks for rock wool slabs.
Adhesion Strength Testing
Tensile tests to ensure the bond strength exceeds international standards.
Dimensional Tolerance Inspections
Strict checks on flatness, width deviation, and joint alignment.
Third-Party Compliance
We fully support and provide independent testing reports from SGS, Intertek, or BV upon project request.
Global Project References
Our building envelope systems are successfully protecting critical assets worldwide. Full project QA/QC documentation, structural calculations, and site photos are available upon request.
Logistics & Distribution Warehouses
Stuttgart, Germany (120mm Wall Panels)
01
Oil & Gas Refining Facilities
Abu Dhabi, UAE (150mm High-Density Roof & Wall Panels)
02
E-Commerce Fulfillment Hubs
Riyadh, Saudi Arabia (100mm Energy-Efficient Panels)
03
Cold Storage & Food Processing Plants
Ho Chi Minh City, Vietnam (120mm Sealed Joint Panels)
04
Automotive Manufacturing Complexes
São Paulo, Brazil (75mm & 100mm Industrial Panels)
05
Customization Options
Panel thickness (50–200 mm)
Panel thickness (50–200 mm)
Fire performance configuration
Joint system type
Acoustic optimization level
Project-specific engineering design
Export-Grade Sea Packaging
Protective Bundling
Multi-layered, heavy-duty waterproof wrapping combined with rigid steel frame pallets.
Container Optimization
Expertly stacked to maximize container volume while protecting panel tongue-and-groove joints from maritime transit damage.
Flexible Incoterms
Supporting FOB, CIF, CFR, and EXW shipping terms worldwide.
Why Wanxiang?
EPC-Centric Vendor: We understand the workflow of international EPC contractors-from strict submittal approval stages to tight project delivery timelines.
Massive Production Scalability: Capable of handling high-volume, multi-thousand square meter orders without compromising lead times.
Engineering-Backed Support: Backed by an export-oriented technical team capable of reading structural drawings (AutoCAD/BIM) and adjusting panel specifications accordingly.
C4/C5 Corrosive Customization: Advanced PVDF and specialized coatings available for coastal and chemical-heavy project locations.
Certificates
Frequently Asked Questions
Q: What specific fire-resistance ratings (FRR) can your rock wool panels achieve?
A: Depending on the panel thickness (e.g., 100mm to 200mm) and structural joint detailing, our wall systems can achieve a Fire Resistance Rating of 60 to 240 minutes for integrity and insulation, complying with international fire codes.
Q: Can these panels be used for heavy industrial coastal environments?
A: Yes. For coastal or highly corrosive industrial environments, we recommend upgrading the steel skin coating to PVDF (Fluorocarbon) or HDP (High-Durable Polyester) with specialized zinc-layer substrates to prevent salt-spray corrosion.
Q: Does Wanxiang provide engineering support for structural bill of quantities (BOQ)?
A: Absolutely. Our in-house engineering team provides full Material Take-Off (MTO) and optimization based on your architectural or structural .dwg or .pdf blueprints to help lower project costs.
Q: What is the minimum order quantity (MOQ) for custom RAL colors?
A: Our standard colors (e.g., Sea Blue, Off-White) have zero or very low MOQ. For custom RAL system colors, the MOQ generally aligns with the minimum economic run of the steel coil coating line (typically around 500 to 1000 meters). Please contact us to discuss options.
Q: Are your panels certified by third-party international agencies?
A: Our products are manufactured to rigorous global standards. We regularly cooperate with international inspection bodies like SGS, Intertek, and BV to provide batch-specific inspection certificates regarding density, bond strength, and non-combustibility.
Get Engineering Support & Quotation
Request a Project-Based Solution
We provide:
24-hour quotation response
Free engineering consultation
Project-specific system recommendation
Sample for testing
Technical drawing support for EPC projects
Contact us to get a complete building envelope solution, not just a price
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