EN
PU-Sealed Glass Wool Composite Sandwich Wall Panel
Factory-direct glass wool core sandwich panel with full-perimeter PU edge sealing — delivering Class A fire protection, superior thermal insulation, and airtight weather resistance for demanding industrial and commercial projects worldwide.
🔥 Class A Fire Rated
✔ CE Certified
✔ ISO 9001
🌍 FOB Qingdao / Ningbo
- Overview
- Technical Specifications
- Applications
- Why Glostar
- Recommended Products
Product details
What Is a PU-Sealed Glass Wool Sandwich Wall Panel?
A PU-sealed glass wool composite sandwich wall panel consists of two pre-painted galvanized steel skins precision-bonded to a high-density glass wool (fiberglass) insulation core. Polyurethane (PU) foam is injected along all four longitudinal edges, forming a continuous airtight, waterproof seal that conventional glass wool panels lack.
The result is a structurally rigid, thermally efficient, and Class A fire-rated building envelope panel — factory-manufactured by Glostar in Shandong, China, and shipped direct to construction projects across the Middle East, Southeast Asia, and South America.
Key Features & Performance Benefits
Every panel is manufactured under ISO 9001 quality management. Here is what sets the PU-sealed glass wool panel apart.
🔥Class A Fire Resistance
Glass wool is a non-combustible mineral material rated A1/A2 per EN 13501-1. Combined with PU edge sealing, the panel meets the strictest fire codes required in UAE, Saudi Arabia, Vietnam, Brazil, and beyond.
🌡️Superior Thermal Insulation
Low thermal conductivity (λ ≈ 0.033–0.040 W/m·K) combined with the PU-sealed node design eliminates thermal bridges, maintaining consistent interior temperatures even under extreme desert heat or tropical humidity.
🔇High Sound Insulation
The porous fibrous structure of glass wool is outstanding at absorbing mid-to-high frequency noise. Panels achieve a weighted sound reduction index (Rw) of ≥ 30 dB — ideal for factories, warehouses, and pharmaceutical facilities near urban zones.
💨Outstanding Wind & Air Resistance
The center seam connection and full PU edge sealing create exceptional airtightness. Panels are engineered to withstand wind loads of up to ±2.0 kPa, making them reliable for high-wind coastal regions in Southeast Asia and the Gulf.
🏗️Fast & Easy Installation
Lighter than rock wool panels of equivalent thickness, glass wool panels reduce handling effort and cut on-site installation time significantly. The hidden-screw tongue-and-groove joint system requires no special tools and creates a seamless, clean facade.
🎨Versatile Surface Finishes
Available in flat, micro-ribbed, stucco embossed, and wave profiles. Full RAL color palette on both inner and outer steel skins. Galvanized base steel is coated with polyester or PVDF paint for long-term corrosion resistance in coastal and industrial environments.
PU-Sealed Glass Wool Sandwich Wall Panel — Detail View
 |
 |
Technical Specifications
Standard specifications are listed below. Custom dimensions, steel gauges, and surface treatments are available upon request.
Panel Dimensions
| Parameter | Value |
|---|---|
| Panel Width | 1000 mm / 1150 mm (effective) |
| Core Thickness | 50 / 75 / 100 / 120 / 150 / 200 mm |
| Max Panel Length | ≤ 12,000 mm (custom) |
| Steel Skin Thickness | 0.4 mm / 0.5 mm / 0.6 mm |
| Total Panel Weight | 12 – 22 kg/m² (thickness-dependent) |
| Joint Type | Center seam / Tongue & Groove |
| Fastening | Hidden screw (concealed) |
Performance Data
| Parameter | Value |
|---|---|
| Fire Resistance | Class A2 |
| Glass Wool Density | 10 – 48 kg/m³ (grade options) |
| Thermal Conductivity | λ = 0.033 – 0.040 W/m·K |
| Sound Reduction (Rw) | ≥ 30 dB |
| Wind Load Resistance | ± 2.0 kPa (standard) |
| Operating Temp. | –50°C to +350°C |
| Humidity Resistance | PU sealed — suitable for humid climates |
Steel Skin Specifications
| Parameter | Value |
|---|---|
| Base Material | Hot-dip galvanized steel (Z275) |
| Coating | Polyester (PE) / PVDF / HDP |
| Paint Thickness | ≥ 25 μm (top coat) |
| Surface Profile | Flat / Micro-rib / Stucco / Wave |
| Color | Full RAL palette (custom) |
| Corrosion Resistance | Salt spray test ≥ 500 hrs |
Certifications & Compliance
| Standard / Region | Status |
|---|---|
| CE Marking (EU) | ✔ Certified |
| ISO 9001 Quality | ✔ Certified |
| EN 13501-1 Fire | ✔ Class A2-s1,d0 |
| Gulf / GCC Standards | ✔ Compliant (on request) |
 |
 |
 |
 |
Applications
PU-sealed glass wool sandwich panels are the preferred wall enclosure solution wherever fire safety, acoustic comfort, and thermal efficiency are required simultaneously.
🏭Industrial Warehouses & Factories
Steel structure buildings, logistics centers, and general manufacturing facilities requiring fast-build, durable wall enclosures.
💊Pharmaceutical & GMP Facilities
Non-combustible Class A panels meet GMP building codes for pharma plants across UAE, Saudi Arabia, Vietnam, and Brazil.
🍖Food Processing Plants
Smooth, washable steel surfaces combined with airtight PU sealing prevent moisture ingress and meet food safety hygiene requirements.
❄️Cold Storage & Refrigeration
High-density glass wool core with PU-sealed edges provides excellent thermal break, maintaining stable temperatures in cold chain facilities.
🏢Commercial Buildings
Office parks, shopping centers, and mixed-use developments requiring architecturally clean facades with strong energy efficiency credentials.
🔬Electronics & Semiconductor
High acoustic performance and EMI-neutral properties make glass wool panels ideal for electronics manufacturing facilities in Malaysia, Vietnam, and Thailand.
Why Glostar
Why Choose Glostar as Your Glass Wool Sandwich Panel Supplier?
We manufacture, we don't trade. Every panel is produced in our own facility in Shandong, China — giving you factory pricing, consistent quality, and full traceability.
01 Dedicated Manufacturing Capacity
Our Shandong factory operates multiple continuous double-belt press lines capable of producing over 2 million m² of sandwich panels annually. Large orders are handled without compromise on lead time.
02 CE Certified & Quality Tested
All panels carry CE certification and are tested to EN 13501-1 (fire), EN ISO 6946 (thermal), and EN ISO 140 (acoustic) standards. Full test reports and COA documents are supplied with every shipment.
03 Full Customisation Available
Custom panel length, width, core thickness, steel gauge, surface profile, and RAL color. We can also produce panels to your proprietary connection system or matching your existing building envelope design.
04 International Shipping Expertise
We regularly ship FOB Qingdao and CIF to UAE (Jebel Ali), Vietnam (Cat Lai), Malaysia (Port Klang), and Brazil (Santos). Our logistics team manages documentation, packing, and customs clearance support.
05 20–30 Day Standard Lead Time
From order confirmation to factory gate in 15–25 working days for standard specifications. Rush orders and stock programmes can be arranged for key project timelines.
06 Technical Pre-Sales Support
Our engineering team provides free project review, thermal calculation reports, fire compliance checks, and quantity take-offs from your architectural drawings — before you place an order.
FAQ
A: What thickness should I choose for my project?
Q: Thickness selection depends on your thermal, acoustic, and structural requirements. As a general guide: 50–75 mm for mild climates and standard acoustic requirements; 100–120 mm for tropical or desert climates (Middle East, Southeast Asia) where thermal performance is critical; 150–200 mm for cold storage or high-noise industrial environments. Our engineers can perform a free thermal calculation based on your local climate data and building specifications.
A:What is the difference between glass wool and rock wool sandwich panels?
Q:Both achieve Class A fire ratings, but they differ in density, weight, and performance characteristics. Glass wool panels are significantly lighter (core density 10–48 kg/m³ vs 80–180 kg/m³ for rock wool), making them easier and faster to install. Glass wool provides superior sound absorption at mid-to-high frequencies. Rock wool panels offer a slightly higher fire endurance time and better hydrophobic performance in permanently wet environments. Glass wool with PU sealing is the preferred choice for clean, dry interiors, pharmaceutical facilities, and general industrial buildings.
A:Can I get custom colors, lengths, or surface profiles?
Q:Yes. We offer full RAL color customisation on both inner and outer steel skins, panel lengths up to 12,000 mm, and multiple surface profiles including flat, micro-ribbed, stucco embossed, and wave. We also accommodate custom connection systems and steel skin gauges. Please send your project drawings or specifications to our sales team for a free technical review and quotation.
Ready to Specify Glass Wool Sandwich Panels for Your Project?
Send us your project drawings or basic specifications. Our technical team will provide a free product recommendation, thermal calculation, and FOB/CIF quotation within 24 hours.
