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Help CenterFactory Direct Metal Sandwich Panel for Exterior Wall 20mm PU Core Free Technical Support Installation Guide
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Welcome to Hemaokang Steel (Shandong) Co., Ltd., a leading manufacturer established in 2025 with an annual export value of US$50 million – US$100 million. We specialize in producing high-quality metal sandwich panels for exterior wall applications. Our Factory Direct Metal Sandwich Panel – 20mm PU Core is engineered to deliver superior thermal insulation, structural strength, and long-lasting durability. As a factory-direct supplier, we offer competitive pricing, strict quality control, and free technical support including an installation guide to ensure your project runs smoothly.
This PU core sandwich panel is the ideal choice for modern exterior wall cladding in commercial, industrial, and residential buildings. The 20mm polyurethane foam core provides excellent insulation properties, reducing energy costs while maintaining a sleek, clean appearance. Our panels are manufactured with precision using advanced continuous lamination lines, ensuring consistent thickness, flatness, and dimensional accuracy.
Key Features & Benefits
- High Thermal Insulation: PU foam core offers low thermal conductivity (0.022-0.028 W/m·K), effectively minimizing heat transfer and saving energy.
- Lightweight yet Strong: The panel weighs only 10-12 kg/m², reducing structural load while maintaining high load-bearing capacity.
- Excellent Fire Resistance: PU core can be formulated with flame retardants to meet B1/B2 fire ratings (optional).
- Weatherproof & Durable: Metal facings with PVDF or polyester coating resist corrosion, UV radiation, and extreme weather conditions.
- Easy Installation: Designed with hidden fastener joints and tongue-and-groove edges; free technical guide provided.
- Eco-Friendly: PU foam is CFC-free and recyclable, contributing to green building certifications.
- Customizable: Available in various colors, lengths, and widths to meet specific project requirements.
Technical Specifications
| Parameter | Value |
|---|---|
| Core Material | Polyurethane (PU) – rigid foam |
| Panel Thickness | 20 mm |
| Effective Width | 1000 mm / 1200 mm (customizable) |
| Length | Up to 12,000 mm (customizable) |
| Face Material | Galvanized steel (0.35-0.6mm) / Aluminum / Color steel |
| Coating | PVDF, Polyester, or HDP (optional) |
| Color Options | White, gray, beige, blue, red, and many RAL colors |
| Density of PU Core | 38-45 kg/m³ |
| Thermal Conductivity | 0.022-0.028 W/m·K |
| Compressive Strength | ≥150 kPa |
| Fire Rating | Available upon request (B1, B2, or Class A) |
Why Choose Our Sandwich Panel?
- Factory Direct Pricing: Eliminate middlemen – get wholesale prices directly from our ISO9001 certified facility.
- Free Technical Support: Our team provides a complete installation guide and online assistance to ensure proper application.
- High Production Capacity: With 51-100 skilled workers and advanced equipment, we can fulfill large orders with short lead times.
- Global Export Experience: We export to North America, South America, Europe, Africa, Oceania, Asia, and more – our panels have been used in diverse climates.
- Flexible Customization: Choose from multiple widths, lengths, colors, and coatings to match your architectural design.
Our PU core sandwich panels are manufactured under strict quality control procedures. The production line adopts continuous lamination technology, ensuring uniform foam density and strong adhesion between metal facings and core. Each panel undergoes dimensional inspection, flatness testing, and bonding strength verification before shipment.
Applications
- Exterior wall cladding for commercial buildings (offices, shopping malls, hotels)
- Industrial factory walls and warehouses
- Cold storage and refrigerated rooms (with appropriate PU density)
- Agricultural buildings (poultry houses, greenhouses)
- Modular and prefabricated houses
- Clean rooms and laboratories
Join thousands of satisfied customers worldwide who trust Hemaokang Steel for their exterior wall needs. Our company, based in Liaocheng, Shandong, China, has achieved an annual export value of US$50 million – US$100 million within a short period, reflecting our commitment to quality and customer satisfaction. We are ISO9001 certified, ensuring that every panel meets international standards. From initial inquiry to after-sales support, our professional team is ready to assist you.
Take the next step – Contact us today for a quote or sample. With factory-direct pricing, free technical support, and a dedicated installation guide, your project will benefit from the best value and performance. Ask about our volume discounts and fast delivery options.
Frequently Asked Questions
-
Q: What is the minimum order quantity (MOQ) for this panel?
A: Our MOQ is typically 100 square meters for standard colors. Custom colors may require a higher MOQ. Please contact us for your specific needs. -
Q: Can I get a sample before placing a bulk order?
A: Yes, we offer free samples (approximately 300x300mm) for your evaluation. You only need to cover the shipping cost. -
Q: How long does the installation guide take to receive?
A: The free technical support and installation guide are provided immediately upon order confirmation via email. Our engineers can also offer online video guidance if needed. -
Q: Is this panel suitable for use in cold climates or high-humidity areas?
A: Yes, the PU core provides excellent thermal insulation, and the metal facings are treated with anti-corrosion coatings. Panels with reinforced sealing can be used in cold storage and humid environments. -
Q: What fire rating can you provide?
A: Our standard PU core can be produced with flame retardant additives to achieve B1, B2, or Class A ratings depending on local regulations. Please specify your requirement when ordering. -
Q: Do you offer custom colors or special coatings?
A: Absolutely. We can match any RAL color and provide PVDF, polyester, HDP, or even anti-graffiti coatings. Custom colors may have a minimum quantity requirement. -
Q: What is the typical lead time for a 20ft container?
A: For standard thickness and color, the lead time is about 15-20 working days after deposit. Custom orders may take 20-25 working days. -
Q: How do you ensure the panel quality during transportation?
A: We pack panels with strong plastic film, wooden pallets, and edge protectors to prevent damage. For sea freight, we use waterproof wrapping and secure strapping.
Disclaimer: The information provided is for reference only. Product specifications may vary based on customization. Please consult our sales team for detailed technical data tailored to your project.
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