The IW PU-edged sandwich panel series combines rock wool, glass wool, and polyurethane for superior fire resistance, thermal insulation, and sound absorption. With high strength, airtightness, and a unique tongue-and-groove design, these panels offer durability, aesthetic appeal, and long-lasting performance.
The IW PU-edged sandwich panel series, which includes rock wool and glass wool sandwich panels, fully leverages the unique properties of rock wool and glass wool cores. It delivers outstanding performance in fire resistance, thermal insulation, and sound absorption while retaining the advantages of polyurethane—such as flexibility, airtightness, high strength, and waterresistance—effectively extending the product's service life and ensuring excellent thermal performance.
Designed in accordance with European standards, the panels feature a unique cavity and tongue-and-groove design, along with precise interlocking fit and sealed end connections. These elements guarantee superior airtightness and watertightness across the entire wall surface, resulting in a smooth, visually pleasing finish with clean and flowing lines that enhance the building's aesthetic appeal.
Size(mm) |
Standard size:1000 |
Optional width:500-1200 |
Suggested length:<15000 |
Standard thickness:50,75,100,150,200,250 |
Surface pattern |
Mirror surface |
Ripple-like corrugation |
Engrossed |
Mini corrugation |
Skin thickness(mm) |
Front steel sheet:0.5-0.8 |
Back steel sheet:0.4-0.6 |
Front aluminum:0.7-1.0 |
Back aluminum:0.4-0.7 |
Joint width(mm) |
0,10,15,20,25,40 |
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Core material type |
PU and glass wool |
PU and rock wool |
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Core material density(Kg/m³) |
Glass wool:64 |
Rockwool:120-140 |
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Flammability |
Class A |
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Application Scenarios: Suitable for buildings requiring long-term outdoor use in various settings such as industrial plants, production warehouses, logistics parks, industrial parks, and modular houses. The product fully complies with weather resistance standards for building envelopes across different regions and environmental conditions.


(1) Excellent Fire Resistance:
Utilizes Class A non-combustible or high-efficiency flame-retardant core materials to fully comply with fire protection codes for various building types and regions. The composite structure of the core and facing effectively delays flame spread, providing valuable time for occupant evacuation and firefighting, thereby enhancing the overall safety level of the building.
(2) Strong and Durable Structure:
Precision side sealing with polyurethane (PU) significantly enhances the overall structural rigidity and deformation resistance of the panels. This process not only facilitates easier and more secure installation but also creates an effective moisture barrier, greatly improving the product's durability and long-term performance stability in humid environments.
(3) Elegant and Aesthetic Appearance:
Features a concealed fastener system, creating a clean, seamless continuous facade. Combined with a wide range of colors and textures available for the color-coated panels, it gives the building a modern, refined, and attractive appearance, perfectly balancing architectural aesthetics and personalized design needs.
(4) High Thermal Insulation and Energy Efficiency:
High-quality insulation core materials work in synergy with specially designed joint systems to minimize thermal bridging and significantly reduce heat loss. This design ensures excellent thermal performance of the wall system, effectively improves building energy efficiency, reduces operational energy consumption, and aligns with green building trends.
(5) Reliable Sealing Performance:
With precision tongue-and-groove interlocking joints and sealed end connections, the system ensures continuous air tightness and water tightness of the entire building envelope. This systematic sealing solution effectively withstands wind and rain, prevents air infiltration, and enhances indoor environmental comfort as well as the long-term durability of the building enclosure.
1. Q: What is the core advantage of your PU-edged rock wool/glass wool panels compared to standard rock wool panels?
A:Our unique design combines the best of both materials. The mineral wool core provides superior fire resistance (typically Class A)and sound absorption. The polyurethane (PU) edge seal adds exceptional airtightness and water resistance, prevents moisture from entering the core, enhances structural strength at the joints, and significantly improves overall thermal efficiency by eliminating thermal bridges at the edges. This extends the panel's lifespan and durability.
2. Q: How does the "cavity and tongue-and-groove" design specifically improve performance?
A:This European-standard design is key to our panel's high performance. It ensures a precise, tight fit during installation, creating a continuous barrier. This directly results in superior airtightness (reducing energy loss from air leakage) and watertightness (preventing water infiltration), leading to a more stable indoor environment, lower energy costs, and protection of the building structure.
3. Q: What are the primary fire safety and thermal insulation ratings?
A:The panels leverage the non-combustible mineral wool core, providing high fire resistance (typically meeting Class A1/A2 standards per EN 13501-1). The PU edge and excellent joint seal contribute to overall system integrity under fire. Thermally, the low-conductivity mineral wool core offers strong insulation, and the sealed joints minimize heat loss. We provide specific fire test reports and U-value/R-value calculations for each panel configuration.
4. Q: Is installation more complex than with standard panels?
A:Not at all. The integrated tongue-and-groove system is designed for easy and fast installation. The interlocking mechanism guides panels into place, ensuring proper alignment and a seamless appearance. It simplifies the process, reduces installation time, and guarantees the performance of the joints. We provide detailed installation manuals and video guides.
5. Q: What makes these panels suitable for long-term outdoor use in varied climates?
A: Three key factors: 1) Material: High-quality, weather-resistant coated metal skins (e.g., PVDF/HDP). 2) Core & Seal:The hydrophobic mineral wool core and the water-resistant PU edge seal prevent moisture absorption and retention. 3) Design:The sealed joint system protects against driving rain and air penetration. This combination ensures compliance with stringent weather resistance standards globally.
6. Q: Can you customize the length, thickness, and color?
A: Yes, we offer extensive customization. We can produce panels in various lengths to suit your project layout, in different thicknesses to meet specific thermal or acoustic requirements, and in a wide range of colors (standard RAL colors or custom-matched). Please provide your project specifications for a detailed quote.
7. Q: What is the minimum order quantity (MOQ) and typical delivery time for export?
A:Our standard MOQ for export orders is typically one 20-foot or 40-foot container. Delivery time depends on order quantity and customization level, but generally ranges from 3 to 5 weeks after final confirmation. We offer FOB, CIF, or other agreed Incoterms and ensure secure, wooden-crate packaging for ocean freight.
8. Q: Do you provide technical support and documentation for international projects?
A:Absolutely. We provide a comprehensive technical dossier including product datasheets, material specifications, fire & thermal test certificates, CAD details, and installation guides. For large projects, we offer dedicated remote technical support and can arrange for pre-shipment inspection if required.
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