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.

 

 

 
 
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.

Rock Wool Sandwich Panel
Rock Wool Sandwich Panel

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).

Rock Wool Sandwich Panel

 

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
 
 
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FAQ

 

Q: What is your Minimum Order Quantity (MOQ)?

A: Our standard MOQ is 500 square meters. However, we can accommodate smaller quantities for trial orders or specific steel structure project matching. Please contact our sales team to discuss your project requirements.

Q: What is your standard production lead time?

A: Typically, our lead time ranges from 15 to 20 days after receiving the advance payment. The exact schedule depends on the project volume and customized steel specifications.

Q: Can your panels be customized for specific project layouts?

A: Yes. We offer comprehensive OEM/ODM customization. You can choose specific panel thicknesses (50-200mm), steel skin gauges (0.3-0.8mm), custom lengths (up to 11.8m to fit shipping containers), specific RAL colors, and specialized coatings (PVDF/Anti-static).

Q: What is the expected service life of Wanxiang Rock Wool Panels?

A: Depending on the local environmental conditions and the chosen surface coating (such as HDP or PVDF), our panels offer a durable operational lifespan of 20 to 30+ years with minimal maintenance.

Q: How do Rock Wool panels compare directly to EPS (Polystyrene) panels?

A: While EPS panels are lightweight and economical, they are combustible. Rock Wool panels provide ultimate Class A1 fire protection and superior acoustic insulation, making them mandatory for industrial safety compliance and high-risk environments.

Q: Do you provide technical support or installation guides?

A: Yes. We provide comprehensive technical documentation, detailed structural node drawings, and installation manuals to support your engineering and construction teams on-site.

Q: Can I request physical samples before placing a bulk order?

A: Absolutely. We provide free sample pieces (20cm × 30cm panel cut-outs) so you can evaluate the steel thickness, rock wool density, and overall finish.

 

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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.