Polyurethane PU core sandwich panels are widely used in construction and industrial applications due to their high thermal insulation, lightweight properties, and structural strength. These panels consist of a rigid PU foam core sandwiched between two outer layers, typically made of metal (such as galvanized steel, aluminum, or stainless steel), fiber-reinforced plastic (FRP), or other composite materials.
1. Key Features of PU Core Sandwich Panels
✅ Excellent Thermal Insulation – PU foam has a low thermal conductivity (~0.022 W/mK), reducing energy loss.
✅ Lightweight Yet Strong – High strength-to-weight ratio for structural applications.
✅ Fire Resistance (with Additives) – Some panels have fire-retardant properties to meet safety standards.
✅ Moisture and Chemical Resistance – Ideal for humid and corrosive environments.
✅ Quick & Easy Installation – Prefabricated panels allow for fast assembly with minimal labor.
✅ Acoustic Insulation – Helps in noise reduction, suitable for factories and industrial zones.
2. Applications in Construction & Industrial Fields
Construction Industry
- Residential & Commercial Buildings – Used for walls, roofs, and ceilings in energy-efficient homes and office spaces.
- Cold Storage & Refrigeration – Ideal for freezer rooms, cold storage warehouses, and refrigerated trucks due to superior insulation.
- Prefabricated & Modular Buildings – Quick-assembly houses and temporary structures benefit from PU core sandwich panels.
- Clean Rooms & Laboratories – Provides hygienic, airtight environments for pharmaceutical and medical industries.
Industrial Applications
- Factories & Warehouses – Used for insulated walls, partitions, and roofing in industrial buildings.
- Oil & Gas Facilities – PU core sandwich panels are used in control rooms, shelters, and offshore structures.
- Energy-Efficient HVAC Systems – Ducting and enclosures in ventilation systems benefit from PU panel insulation.
- Automotive & Aerospace – PU core sandwich panels are used in lightweight vehicle structures, trailers, and aircraft interiors.
3. Types of PU Core Sandwich Panels
- Flat PU Panels – Smooth surface, commonly used for cleanrooms and decorative applications.
- Corrugated PU Panels – Increased rigidity, suitable for roofing and exterior walls.
- PU Panels with Aluminum Foil – Used in high-humidity environments like cold storage.
- Fire-Resistant PU Panels – Enhanced with fire-retardant additives for safety compliance.
