0.4mm Galvalume Steel Exterior Metal Sandwich Panel With Polyurethane Core for Weather Resistance
Product Spotlights
Established in 2025, Hemaokang Steel (Shandong) Co., Ltd. has quickly become a reliable supplier of high-quality building materials, with an annual export value exceeding US$50 million and a dedicated team of 51–100 professionals. Our 0.4mm Galvalume Steel Exterior Metal Sandwich Panel with Polyurethane Core is engineered to deliver exceptional weather resistance, thermal insulation, and structural integrity for commercial, industrial, and residential projects. Backed by ISO9001 certification and serving markets across North America, South America, Europe, Asia, Africa, and Oceania, we offer a product that combines durability with cost-efficiency, making it the ideal choice for modern construction.
Key Features & Technical Specifications
- Galvalume Steel Surface: 0.4mm thick, hot-dip coated with aluminum-zinc alloy (55% Al, 43.5% Zn, 1.5% Si) for superior corrosion resistance and long service life.
- Polyurethane Core: Closed-cell PU foam with excellent thermal insulation (λ ≤ 0.024 W/m·K), soundproofing, and fire retardant properties (optional grades available).
- Weather Resistance: Resistant to UV radiation, moisture, and extreme temperatures (-40°C to +120°C), ensuring stable performance in harsh climates.
- Lightweight & High Strength: Low weight (approx. 10–12 kg/m²) reduces structural load while maintaining high rigidity (load capacity up to 1.5 kN/m²).
- Easy Installation: Interlocking tongue-and-groove design allows fast, secure assembly, minimizing labor time and costs.
- Eco-Friendly: Core material is free from CFCs and HCFCs, contributing to green building standards.
- Customizable Dimensions: Available in various widths (600–1200mm) and lengths (up to 12000mm), with RAL color options to match any architectural design.
| Parameter | Value |
|---|---|
| Face Sheet Thickness | 0.4mm (standard, other thicknesses optional) |
| Total Panel Thickness | 50mm / 75mm / 100mm / 120mm (customizable) |
| Core Density | 40–50 kg/m³ (standard PU foam) |
| Thermal Conductivity | ≤ 0.024 W/m·K |
| Fire Rating | B1/B2 (available upon request) |
| Effective Width | 1000mm / 1150mm (customizable) |
| Maximum Length | 12000mm (customizable per order) |
| Color Options | RAL 9002, 9003, 9010, 3003, 5005, 6005, etc. |
Product Advantages & Customer Benefits
Our sandwich panel offers tangible benefits for builders, architects, and facility managers:
- Energy Savings: The high thermal resistance of the PU core reduces heating and cooling costs by up to 30%, improving building energy efficiency.
- Durability: Galvalume steel withstands rust, chipping, and peeling for decades, even in coastal or industrial environments.
- Low Maintenance: The smooth surface resists dirt accumulation and is easy to clean with water, reducing long-term upkeep.
- Fast Construction: Panels are pre-fabricated and delivered ready to install, cutting project timelines by 30–50% compared to traditional masonry.
- Versatile Application: Ideal for exterior walls, roofs, cold storage rooms, clean rooms, and temporary structures.
- Safe & Reliable: Optional fire-resistant core meets international building codes, and the panel system is tested for wind load (up to 2.5 kPa).
Trust & Quality Assurance
As a company with ISO9001 certification and an annual export volume of US$50–100 million, Hemaokang Steel ensures strict quality control from raw material selection to final packaging. Our 51–100 experienced employees operate modern production lines, and each panel undergoes dimensional inspection, adhesion testing, and surface finish checks before shipment. We have successfully supplied projects in more than 30 countries across six continents, earning recognition for consistent quality and on-time delivery. With a location in Liaocheng, Shandong—a major steel production hub—we benefit from efficient logistics and competitive pricing. Contact us today to request a sample, obtain a quotation, or discuss your specific project requirements. Our team is ready to provide tailored solutions for your next building venture.
Frequently Asked Questions
-
Q: What is the minimum order quantity (MOQ) for this panel?
A: Our standard MOQ is 300 square meters, but we can accommodate smaller trial orders (e.g., 100 sqm) for new customers. Please contact our sales team for details. -
Q: Can the panel be used for both walls and roofs?
A: Yes, this panel is designed for vertical exterior walls as well as roof applications. For roof use, we recommend a minimum slope of 5° to ensure proper drainage, and we can provide additional sealing options. -
Q: How long does the Galvalume coating last?
A: Under normal atmospheric conditions, the aluminum-zinc coating provides corrosion protection for 20–30 years before any maintenance is needed. Actual lifespan depends on local environmental factors. -
Q: Is the polyurethane core flammable?
A: Standard PU foam has a fire rating of B2 (Euroclass). For enhanced fire safety, we offer a B1 (flame retardant) grade core upon request, which meets stricter building codes. -
Q: Can I get custom colors or sizes?
A: Absolutely. We offer a wide range of RAL colors and can cut panels to any length up to 12 meters. Width can also be customized (commonly 600–1200mm). Please specify your requirements when ordering. -
Q: What is the typical lead time for an order?
A: For standard sizes and colors, production takes 7–10 working days after deposit. Custom orders may require 12–15 working days. Shipping time depends on the destination. -
Q: Do you provide installation instructions or technical support?
A: Yes, we supply detailed installation manuals and engineering drawings upon request. Our technical team can also offer remote guidance or on-site training for large projects. -
Q: How is the panel packaged for export?
A: Panels are stacked face-to-face and back-to-back, wrapped with protective film, secured with steel strapping, and packed in wooden crates or pallets to prevent damage during transit.
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