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IW PU Edge-sealed Composite Sandwich Panel
The IW PU Edge-sealed Composite Sandwich Panel represents the pinnacle of modern building envelope technology. By innovatively fusing a high-density rock wool core with rigid polyurethane (PU) edge banding, this system delivers the "best of both worlds": the superior fire resistance and sound absorption of rock wool, combined with the excellent water resistance, airtightness, and structural strength of polyurethane. Designed to European standards with a unique dovetail joint, the IW series ensures a flawless, airtight facade that stands the test of time.
- Overview
- Technical Specifications
- Applications
- Recommended Products
Product details
IW edge-sealed composite panel series fully utilizes the unique properties of rock wool core material, offering significant advantages in fire resistance, thermal insulation, and sound absorption and noise reduction. At the same time, it retains the advantages of polyurethane, such as plasticity, airtightness, high strength, and water resistance, effectively extending the product's service life and providing excellent thermal insulation performance. Designed according to European standards, the product features a unique cavity and dovetail design, ensuring a tight fit and sealed end connections, guaranteeing the airtightness and watertightness of the entire wall. The wall surface is flat and aesthetically pleasing, with a smooth and rounded appearance, giving the building a beautiful look.
Performance Features
1. Unrivaled Fire Resistance & Safety
At the heart of the IW panel is high-quality rock wool. As a non-combustible material (typically Euroclass A1 or A2), it provides a critical barrier against fire. In the event of a fire, the panel helps contain the spread of flames and smoke, protecting the building's structural integrity and buying valuable time for evacuation. This makes it an ideal choice for buildings with strict fire codes, such as chemical plants and data centers.
2. Superior Thermal Insulation & Energy Efficiency
The combination of the rock wool core and the PU edge seal creates an uninterrupted thermal barrier. The PU edges prevent heat leakage at the joints (a common weak point), while the rock wool core minimizes heat transfer across the panel surface. This dual-action insulation significantly reduces energy consumption for heating and cooling, contributing to a greener, more sustainable building.
3. Acoustic Comfort: Sound Absorption & Noise Reduction
Industrial environments can be noisy. The porous structure of the rock wool core acts as an excellent sound absorber. The IW panel effectively dampens external noise (such as traffic or weather) and contains internal operational noise, creating a quieter, more compliant environment for workers and the surrounding community.
4. Water Resistance & Extended Service Life
Traditional rock wool panels can suffer if water infiltrates the core, leading to sagging and loss of insulation value. The IW PU Edge-sealed technology solves this. The rigid polyurethane edges form a waterproof frame around the rock wool, completely blocking moisture ingress. This water resistance ensures the insulation performance remains stable over decades, effectively extending the lifespan of the building facade.
5. High Strength & Structural Rigidity
While rock wool is soft, the PU edges are rigid and tough. The edge-sealing process bonds the steel facings and the core into a solid, box-like composite structure. This significantly increases the panel's bending resistance and compressive strength, allowing for longer spans between support columns and reducing the amount of structural steel required.
Technical Specifications
Material Characteristics Table
| Size(mm) | Standard panel width:1000 |
| Optional panel widths: 500~1000 mm | |
| Panel length: ≤ 15000 mm | |
| Standard panel thicknesses: 50, 75, 100, 150, 200, 250 mm | |
| Surface pattern | Mirror surface,Ripple-like corrugation ,Engrossed,Mini corrugation |
| Skin thickness(mm) | Outer steel plate: 0.5-0.8 Outer aluminum plate: 0.7-1.0 |
| Inner steel plate: 0.4-0.6 Inner aluminum plate: 0.4-0.7 | |
| Joint width(mm) | 0,10,15,20,25,40 |
| Core material | PU + fiberglass wool, PU + rock wool |
| Core material density(Kg/m3) | Fiberglass wool: 64; Rock wool: 120~140 |
| Flammability | Class A |
Performance Selection Table
| Core material | Thickness (mm) | Type of Support | Load(KN/m2)/rafter spacing(mm) | Panel weigh(Kg/m2) | Thermal conductivity(W/m2`k) | |||||
| 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | |||||
| Rock wool | 50 | Single-span/multi-span | 5400 | 3713 | 2866 | 2332 | 1961 | 1689 | 15.51 | 0.76 |
| 75 | 7216 | 5029 | 3923 | 3220 | 2727 | 2360 | 18.34 | 0.53 | ||
| 100 | 8807 | 6169 | 4833 | 3981 | 3380 | 2932 | 21.17 | 0.4 | ||
| 150 | 11508 | 8044 | 6292 | 5176 | 4390 | 3805 | 26.83 | 0.27 | ||
| Glass wool | 50 | Single-span/multi-span | 5522 | 3855 | 3013 | 2476 | 2099 | 1818 | 12.59 | 0.6 |
| 75 | 7365 | 5204 | 4107 | 3404 | 2905 | 2530 | 14.50 | 0.41 | ||
| 100 | 8982 | 6375 | 5051 | 4200 | 3594 | 3138 | 16.05 | 0.31 | ||
| 150 | 11739 | 8317 | 6580 | 5464 | 4671 | 4074 | 19.15 | 0.21 | ||
Standard Specifications
1. Facing Material Configuration:
The color-coated steel sheets use Clean Colorbond® steel from BlueScope Steel or other steel manufacturers with equivalent technical specifications. The surface is coated with a special nano-reinforced polyester coating system, ensuring long-lasting beauty, and the substrate is guaranteed to be corrosion-resistant for 20 years.
2. Core Material Configuration:
High-quality hydrophobic rock wool and glass wool meeting Glostar's technical specifications are used. The PU uses specialized raw materials from Huntsman, a leading international polyurethane chemical company.
3. Adhesive Configuration:
Non-corrosive and environmentally friendly adhesives are used, which do not damage the facing or core materials.
4. Other components are selected according to Glostar's technical requirements.
Applications
The versatility of the IW PU Edge-sealed Composite Sandwich Panel makes it the preferred choice for a wide array of sectors:
• High-End Industrial Plants: Where fire safety and clean aesthetics are paramount.
• Cold Chain Logistics: Leveraging the PU sealing for better temperature control.
• Public Buildings: Stadiums, exhibition centers, and airports requiring soundproofing and durability.
• Commercial Complexes: Office blocks and large retail spaces needing rapid installation and modern looks.
• Power Plants & Chemical Facilities: Environments demanding strict fire resistance and corrosion protection.
The IW PU Edge-sealed Composite Sandwich Panel is more than just an upgrade; it is a revolution in wall cladding technology. By successfully integrating the thermal and fireproof properties of rock wool with the watertight and structural benefits of polyurethane, Hongxing Technology has created a solution that addresses every major concern of modern building envelopes.
With its European standard design, unique dovetail sealing, and superior flatness, the IW series promises not only to protect your building but to enhance its value and longevity.
Ready to upgrade your building's envelope? Contact us today to discuss specifications and get a quote for the IW PU Edge-sealed Series.
