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Help CenterAluminum Composite Metal Wall Panel 4mm Thickness 10-Year Warranty Bubble-Free Surface Technical Support
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At Hemaokang Steel (Shandong) Co., Ltd., we deliver high-quality building materials that meet the rigorous demands of modern construction. Our Aluminum Composite Metal Wall Panel in 4mm thickness is engineered to provide a durable, lightweight, and visually appealing solution for both exterior and interior cladding. With a 10-year warranty and a bubble-free surface guaranteed by advanced production technology, this panel is the ideal choice for architects, contractors, and developers seeking long-term performance and aesthetic excellence. Backed by our ISO9001-certified facility and extensive export experience reaching over 50 countries, we offer not only a product but also comprehensive technical support throughout your project.
Our panels are manufactured using a continuous lamination process that ensures uniform bonding between the aluminum skins and the polyethylene core, eliminating any risk of delamination or surface bubbles. The result is a flat, smooth surface that maintains its appearance for decades. The 4mm thickness provides an optimal balance of rigidity and weight, making installation easy while withstanding wind loads, thermal expansion, and impact. Each panel is subjected to strict quality control checks, including adhesion tests, impact resistance, and color consistency, to ensure that every shipment meets our high standards.
Key Features & Benefits
- Bubble-Free Guarantee: Our proprietary bonding process eliminates air pockets, ensuring a smooth, flawless surface that enhances the appearance of any building facade.
- 10-Year Warranty: We stand behind the durability of our panels. The warranty covers manufacturing defects, color fading, and delamination, giving you peace of mind.
- Lightweight Yet Strong: At just 5.5 kg per square meter (for 4mm thickness), the panel reduces structural load while maintaining high impact resistance.
- Excellent Flatness: Advanced tension control during production ensures a perfectly flat panel, even in large sizes, reducing installation challenges.
- Weather & UV Resistance: PVDF coating (optional) provides superior resistance to UV rays, acid rain, and salt spray, ideal for coastal and industrial environments.
- Customizable Colors & Finishes: Choose from a wide range of RAL colors, metallic effects, wood grain, or stone patterns to match your design vision.
- Easy Fabrication & Installation: Can be cut, routed, bent, and installed using standard tools. Our technical support team provides detailed installation guides and on-site assistance upon request.
- Fire Safety Options: Standard PE core is available; for projects requiring higher fire resistance, we offer a fire-retardant (FR) core with B1 rating (certified upon request).
Technical Specifications
| Parameter | Value |
| Total Thickness | 4mm (±0.2mm) |
| Aluminum Skin Thickness | 0.21mm – 0.50mm (front & back) |
| Core Material | Low Density Polyethylene (LDPE) |
| Surface Coating | PVDF (Kynar 500) or Polyester |
| Standard Width | 1220mm, 1250mm, 1500mm |
| Standard Length | 2440mm, 3000mm, 6000mm (custom up to 8000mm) |
| Weight | Approx. 5.5 kg/m² |
| Adhesion Strength | ≥ 7 N/mm (peel test) |
| Temperature Range | -50°C to +80°C |
| Fire Rating (optional) | B1 (DIN 4102) / Class A (ASTM E84) |
Why Choose Hemaokang Steel?
As a professional manufacturer with ISO9001 certification, we ensure that every panel meets international quality standards. Our factory in Liaocheng, Shandong, has a production capacity of over 2 million square meters per year, allowing us to fulfill large-scale orders with consistent lead times. We export to North America, South America, Europe, Southeast Asia, Africa, the Middle East, and Oceania, with an annual export value exceeding US$50 million. Our team of 51–100 employees includes experienced engineers and technical support staff who can assist with product selection, installation guidance, and troubleshooting.
We understand that every project is unique. That’s why we offer custom sizes, colors, and surface finishes to match your specific requirements. Whether you need a standard white panel for a shopping mall or a custom metallic finish for a high-rise office building, we can deliver. Our 10-year warranty is a testament to our confidence in the product’s longevity and performance.
Contact us today for a quote or technical consultation. Our dedicated sales team will respond within 24 hours, and we can arrange free samples for your evaluation. Trust Hemaokang Steel to provide the Aluminum Composite Metal Wall Panels that will transform your building’s exterior into a landmark of quality and style.
Frequently Asked Questions
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Q: What is the difference between your 4mm panel and other thicknesses?
A: The 4mm panel is the most common thickness for exterior cladding, offering a good balance of strength and weight. For applications requiring higher wind load resistance, we also offer 5mm and 6mm options. For interior use, a 3mm panel may be sufficient. Our technical team can recommend the best thickness based on your project’s location and design. -
Q: How do you guarantee a bubble-free surface?
A: Our continuous lamination process uses vacuum pressure and precise temperature control to eliminate air trapped between layers. Additionally, we use high-quality aluminum coils with a clean surface and premium adhesive film. Each panel undergoes a visual inspection and a peel test to ensure zero bubbles. -
Q: Can I get a custom color that is not in your standard RAL range?
A: Yes, we can match any color using the Pantone system or a provided sample. There may be a minimum order quantity (MOQ) for custom colors, typically 500–1000 square meters. Please contact our sales team for details. -
Q: What is the lead time for bulk orders?
A: For standard sizes and colors, lead time is 15–20 working days after receipt of deposit. For custom sizes or colors, it may extend to 25–30 working days. We ship from Qingdao Port, and we can arrange both FOB and CIF terms. -
Q: Do you provide installation guides or technical support?
A: Absolutely. We provide detailed installation manuals, including recommended cutting methods, fastening systems, and joint details. For large projects, we can offer on-site technical support (travel expenses to be borne by the buyer). Our team is also available via email and phone for troubleshooting. -
Q: Is the 10-year warranty valid internationally?
A: Yes, the warranty covers panels sold worldwide. It applies to manufacturing defects, including delamination, blistering, and excessive color fading (beyond normal weathering). The warranty is subject to proper installation and maintenance; we provide a full warranty certificate with each shipment. -
Q: Can you supply panels with a fire-retardant core?
A: Yes, we offer a fire-retardant (FR) core that meets B1 classification (DIN 4102) or Class A (ASTM E84). The FR core is mineral-filled and has a lower flame spread index. Please specify your requirement when ordering, as the MOQ may differ from standard PE core panels. -
Q: What is the minimum order quantity?
A: For standard panels (4mm, 1220x2440mm, white), the MOQ is 100 square meters. For custom sizes or colors, the MOQ is typically 300–500 square meters. We can also accommodate small trial orders for sample evaluation.
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