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Hemaokang Steel (Shandong) Co., Ltd. is proud to present our premium 20mm Aluminum Sandwich Panel for Exterior Wall with PVDF Coating B1 Fire Rated Insulation. As a newly established but rapidly growing manufacturer (2025) with an annual export value of US$50 million to US$100 million, we combine advanced production technology with rigorous quality control. Our panels are designed to meet the highest standards of durability, fire safety, and aesthetic appeal, making them the ideal choice for modern architectural projects worldwide. With over 50 experienced employees and ISO9001 certification, we ensure every panel delivers consistent performance and long-term value.
This 20mm aluminum sandwich panel features a robust PVDF (polyvinylidene fluoride) coating that provides exceptional weather resistance, UV stability, and color retention—perfect for harsh exterior environments. The B1 fire-rated insulation core (Class 1) significantly enhances building safety by slowing flame spread. Whether you are constructing commercial buildings, industrial facilities, or residential complexes, our panels offer a lightweight yet strong solution that reduces structural load while maintaining thermal insulation and soundproofing properties.
Key Features & Technical Specifications
- Thickness: 20mm – balanced for rigidity and insulation efficiency.
- Surface Coating: PVDF (Kynar 500® based) – excellent anti-corrosion and anti-weathering performance.
- Fire Rating: B1 (Class 1) – meets international fire safety standards for building materials.
- Core Material: High-density insulation core (polyurethane or mineral wool available) – superior thermal and acoustic insulation.
- Aluminum Skin: 0.5mm – 1.0mm thick aluminum alloy, pre-treated for enhanced adhesion.
- Weight: Approximately 5.5 kg/m² – lightweight for easy handling and installation.
- Width: Customizable from 1000mm to 1220mm, length up to 6000mm.
- Color Options: Wide range of RAL colors, or custom colors upon request.
- Application: Exterior wall cladding, curtain walls, partition walls, and roof systems.
| Parameter | Specification |
|---|---|
| Total Thickness | 20mm (±0.5mm) |
| Aluminum Skin Thickness | 0.5mm (top) / 0.5mm (bottom) or customizable |
| Coating | PVDF (70% resin content) – UV resistant, 20+ year lifespan |
| Fire Class | B1 (EN 13501-1 equivalent) |
| Core Density | > 100 kg/m³ (polyurethane) or > 150 kg/m³ (mineral wool) |
| Thermal Conductivity | 0.023 W/m·K (polyurethane core) |
| Sound Reduction Index | Up to 30 dB (depending on core type) |
| Standard Panel Size | 1220mm × 2440mm (custom sizes available) |
Advantages & Customer Benefits
- Enhanced Safety: B1 fire rating ensures compliance with strict building codes, reducing fire risk.
- Long-Lasting Aesthetics: PVDF coating resists chalking, fading, and corrosion – maintains color for decades.
- Energy Efficiency: Insulation core minimizes heat transfer, lowering HVAC costs.
- Lightweight Construction: Easy to transport, cut, and install – saves labor and structural costs.
- Eco-Friendly: Aluminum is 100% recyclable; core materials are low-emission.
- Versatile Design: Available in multiple colors and finishes (metallic, matte, etc.) to match any architectural style.
- Low Maintenance: Smooth surface resists dirt and graffiti – simple cleaning with water and mild detergent.
At Hemaokang Steel, we pride ourselves on rigorous quality control. Our production lines are ISO9001 certified, ensuring every panel meets strict tolerance and performance standards. We serve a wide range of global markets, including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Western Europe, delivering consistent quality and on-time shipments. With an annual export value exceeding US$50 million, we have the capacity and expertise to handle large-scale projects and custom orders.
Our team of 51–100 skilled professionals, based in Liaocheng, Shandong, China, is dedicated to providing excellent customer service from inquiry to after-sales. We offer free samples, professional technical support, and flexible packaging options. Whether you need standard panels or custom dimensions, fire-rated cores, or specific colors, we can accommodate your requirements. Contact us today to request a quote or discuss your project needs. Experience the Hemaokang difference – quality, reliability, and innovation in every panel.
Frequently Asked Questions (FAQ)
Q1: What is the maximum panel size available for the 20mm aluminum sandwich panel?
A: Our standard maximum size is 1220mm × 2440mm, but we can customize up to 6000mm length and 1500mm width upon request. Please contact our sales team for specific dimensions.
Q2: How do I install these panels on an exterior wall?
A: Installation typically involves a sub-frame system (aluminum or steel) using hidden clips or exposed fasteners. We provide detailed installation manuals and can recommend qualified contractors. Always follow local building codes.
Q3: Is the PVDF coating environmentally friendly?
A: Yes, PVDF is a durable, non-toxic coating that resists environmental degradation. Our panels comply with international environmental standards, and the aluminum skin is fully recyclable.
Q4: Can I get a fire test certificate for the B1 rating?
A: Yes, we provide third-party test reports for the B1 fire rating upon request. The core material has been tested according to EN 13501-1 and similar standards.
Q5: What colors are available?
A: We offer a wide range of RAL colors, as well as custom colors matching your Pantone or specific sample. Minimum order quantity for custom colors may apply.
Q6: How long does the coating last?
A: Under normal outdoor conditions, the PVDF coating maintains its appearance for 20–25 years with minimal fading or chalking. Regular cleaning can extend its lifespan.
Q7: What is the weight per square meter?
A: Approximately 5.5 kg/m² for a 20mm panel with standard aluminum skins and polyurethane core. Weight varies slightly with skin thickness and core type.
Q8: Do you offer samples before bulk order?
A: Yes, we provide free samples (A4 size) with shipping cost paid by the customer. We can also arrange for larger samples or mock-ups for project evaluation.
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