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Glostar Insulated 50mm 100mm PIR PU Polyurethane Wall Sandwich Panels
Glostar Insulated 50mm 100mm PIR PU Polyurethane Wall Sandwich Panels deliver unmatched thermal insulation and structural rigidity for modern wall cladding. Featuring a Class B1 fire-retardant core and a concealed-fastener interlocking design, they provide an aesthetically pleasing, highly energy-efficient enclosure system for cold storage, cleanrooms, and industrial factories.
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Product details
Metal Wall Enclosure System
Glostar Insulated 50mm 100mm PIR PU Polyurethane Wall Sandwich Panels
B1 Fire Rating · Low Thermal Conductivity · Concealed Fixing · Fully Customizable
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B1 Fire Rating |
200°C Short-Term Heat Tolerance |
50 – 100mm Core Thickness |
500 – 1200mm Effective Width |
Glostar PIR / PU Polyurethane Wall Sandwich Panel — 50mm 100mm Thickness
Product Overview
What Is a PIR / PU Polyurethane Wall Sandwich Panel?
Glostar PIR / PU polyurethane wall sandwich panels are high-performance metal cladding boards composed of two pre-painted steel facings bonded to a rigid polyisocyanurate (PIR) or polyurethane (PU) foam core. The insulated core delivers exceptional thermal performance — 30 to 50% better than traditional rock wool, glass wool, or EPS panels at equivalent thickness.
PIR foam differs from standard PUR by incorporating excess isocyanate and a ring-structured molecular architecture, which significantly improves fire resistance, dimensional stability, and long-term structural integrity. The panels are produced using a zero-CFC cyclopentane blowing agent — fully compliant with international environmental regulations — and are available in 50mm, 100mm and a full range of custom thicknesses to suit any building specification.
Key Advantages
6 Reasons Engineers Specify Glostar PIR Panels
01 · THERMAL INSULATION Superior Energy EfficiencyPIR foam has one of the lowest thermal conductivity values of any insulation core material. A 50mm PIR panel delivers insulation equivalent to a 75mm rock wool panel — reducing building heating and cooling costs significantly over the full service life. |
02 · FIRE SAFETY B1 Fire-Retardant RatingClassified B1 flame retardant. The panel resists ignition under direct flame or radiant heat, does not sustain rapid fire spread, and self-extinguishes immediately when the ignition source is removed — meeting stringent industrial fire codes. |
03 · STRUCTURAL STRENGTH Lightweight Yet High RigidityThe panels possess high strength, and the wall assembly exhibits superior mechanical properties. Panels maintain structural integrity across large spans, making them ideal for both new-build steel frame structures and retrofit cladding projects. |
04 · Concealed Concealed FixingConcealed-fastener connection with no exposed screws for a more aesthetically pleasing wall appearance; a variety of panel surface finishes available. |
05 · UNIQUE DESIGN Dual-support Interlocking DesignThe sandwich panels features a unique "dual-support" interlocking design for superior resistance to negative wind pressure. |
06 · CUSTOMIZATION Fully Configurable to SpecChoose from PE, SMP, HDP, or PVDF coatings; ripple, flat, or square-wave profiles; 0 / 10 / 20mm reveal joints; and any RAL or custom color. |
Cross-Section Structure
Panel Layer Composition
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Outer Steel Facing PE / SMP / HDP / PVDF coating · Hot-dip galvanized / Aluzinc / ZAM substrate |
0.4 – 0.8mm | |
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PIR / PU Polyurethane Foam Core Zero-CFC cyclopentane blown · Ultra-low thermal conductivity · Continuous service to 160°C · B1 fire retardant |
50 – 100mm | |
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Inner Steel Facing Interior-grade coating · Hot-dip galvanized substrate · Clean flat finish |
0.4 – 0.7mm |
Technical Specifications
Product Specifications
| Parameter | Specification |
|---|---|
| Core Material | PIR (Polyisocyanurate) / PU (Polyurethane) |
| Core Thickness | 50mm / 75mm / 100mm (custom available) |
| Effective Width | 500 – 1200mm |
| Panel Length | Custom to order |
| Steel Facing Thickness | Outer: 0.4 – 0.8mm · Inner: 0.4 – 0.7mm |
| Steel Coating | PE / SMP / HDP / PVDF |
| Galvanizing | Hot-dip galvanized / Aluzinc / ZAM (zinc-aluminum-magnesium) |
| Recommended Steel Brands | Baosteel / YIEH PHUI / BLUESCOPE |
| Surface Profile | Ripple / Flat / Square Wave |
| Color | Fully customizable — RAL or custom color card |
| Fire Rating | B1 Flame Retardant |
Applications
Where Are PIR / PU Wall Sandwich Panels Used?
Glostar PIR / PU polyurethane sandwich panels are widely specified wherever a combination of thermal performance, fire safety, and fast installation is required. Common sectors include:
🏭 Industrial Factories Steel frame manufacturing & warehouse buildings |
❄️ Cold Storage Refrigerated warehouses & cold chain logistics |
🌿 Agricultural Buildings Greenhouses & temperature-controlled farms |
🍖 Food Processing Abattoirs, processing plants & food factories |
🏢 Commercial Buildings Office blocks, showrooms & exhibition halls |
📦 Logistics & Distribution Large distribution centers & fulfilment hubs |
🏗️ Modular Buildings Relocatable & container-based structures |
💊 Cleanrooms Pharma, semiconductor & electronics facilities |
Why Glostar
Why Choose Glostar as Your Sandwich Panel Supplier?
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10+ Years of Manufacturing R&D Backed by decades of independent product development, every Glostar panel reflects continuous advancement in foam chemistry, steel coating, and panel engineering — not commodity production. |
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Fully Automatic Production Lines Manufactured on advanced continuous foaming lines with precision temperature control and automated quality inspection — delivering consistent panel dimensions and core density at scale. |
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Tier-1 Steel Sourcing Steel coils sourced exclusively from Baosteel, YIEH PHUI, and BLUESCOPE — the same global tier-one suppliers trusted by major construction programs worldwide. |
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Full Project Support From specification support and technical drawings to sea freight from Qingdao Port — dedicated project managers handle the full supply chain so your team can focus on installation. |
Order Information
Ordering & Delivery
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FAQ
Frequently Asked Questions
What is the difference between PIR and PU (PUR) sandwich panels?
Both PIR and PUR use polyurethane chemistry, but PIR foam is produced with a higher isocyanate index and a ring-structured molecular crosslink. This makes PIR panels significantly more fire resistant, thermally stable, and dimensionally rigid than standard PUR — especially important for applications requiring continuous service above 120°C.
Which thickness should I specify — 50mm or 100mm?
50mm panels are standard for mild climate regions, interior partitions, or projects where wall weight is critical. 100mm panels are recommended for colder climates (U-value 0.23 W/m²K), cold storage buildings, pharmaceutical facilities, or any project with strict energy efficiency targets. Both are stocked as standard thicknesses — other sizes are made to order.
Are PIR / PU sandwich panels suitable for cleanroom walls?
Yes. PU / PIR sandwich panels with a smooth flat-profile steel facing are widely used in pharmaceutical and semiconductor cleanrooms due to their airtight joints, ease of cleaning, and stable thermal envelope. For GMP cleanroom compliance, specify flat-profile inner facing with concealed fixing and silicone-sealed joints.
What is the minimum order quantity and lead time?
MOQ is 1,000 m². Standard production lead time is 20–30 days after receipt of deposit. Color and coating customization does not affect lead time for most orders. Contact our team with your project dimensions and we will confirm availability and pricing within 48 hours.
Get a Quote for Your Project
Send us your wall area, thickness requirement, and delivery port — we will respond with pricing, technical drawings, and sample information within 48 hours.
