How to choose anodized aluminum sheet?

In the field of contemporary architectural decoration, anodized aluminum sheets have become the “future materials” favored by designers and engineers for their unique metallic texture, excellent durability and environmental protection characteristics. Whether it is high-end office buildings, airport stations, or art venues, its application scenarios are constantly expanding. However, how to choose an anodized aluminum sheet with excellent performance and adapted to the scene requirements?

1. Raw material selection

The substrate of anodized aluminum sheets directly affects its weather resistance, strength and oxide film quality. A common misunderstanding is that “all aluminum alloys can be oxidized”, but this is not the case:

◆ 5052 aluminum sheet: suitable for indoor decoration, the oxide film thickness is about 5μm, but outdoor use is prone to yellowing due to thick film, so it needs to be selected carefully.

◆ 5005 aluminum sheet: specially designed for outdoor scenes, the oxide film can reach more than 15μm, with stronger UV resistance and corrosion resistance, and a service life of up to 50 years.

◆ Avoid using cast aluminum sheets: because its high silicon content will cause the oxide film to be dark in color and lose its decorativeness.

2.Performance indicators

• Film thickness: ≥5μm is recommended for indoor use and ≥15μm is required for outdoor use to ensure weather resistance and scratch resistance.
• Color difference and glossiness: High-end projects require color difference △E≤1, and glossiness is controlled at 30-70GU to balance metal texture and visual comfort.
• Corrosion resistance and wear resistance: The corrosion resistance of high-quality anodized aluminum sheets is 3 times that of ordinary aluminum sheets, and the tensile strength is increased by 2.5 times, which can adapt to harsh environments.
• Environmental protection and fire prevention: zero formaldehyde, 100% recyclable, and high melting point, meet Class A fire prevention standards, and ensure public safety.

3. Process and surface treatment

◆ Surface treatment technology: Spraying is easy to fade, roller coating has uniform color and strong weather resistance, and the anodizing process itself does not require additional coating, retains the natural metallic luster, is anti-static, and easy to clean.

◆ Honeycomb panel structure: adopts the three-layer composite design of “anodized aluminum sheet + aluminum honeycomb core”, which is both lightweight (density is only 1/3 of steel) and high strength, supports large-sheet customization (such as 1800×8000mm), and achieves seamless decorative effect.

◆ Production process control: manufacturers with full-process control capabilities are preferred to avoid problems such as weak bonding and uneven oxide film in small workshops, ensuring stable performance for more than 10 years.

4. Scene adaptation

• Outdoor curtain wall: 5005 aluminum sheet + thickened oxide film (≥15μm) is recommended, with honeycomb panel structure, wind pressure resistance and salt spray corrosion resistance.
• Indoor ceiling and wall: 5052 aluminum sheet + matte oxide film, highlighting low-key luxury, and easy to clean and maintain.
• Art installation and curved surface modeling: using the excellent plasticity of aluminum sheet, support complex processing such as bending and punching, and realize personalized design.

5. Brand selection

• High-quality anodized aluminum sheets need to rely on the technical accumulation and service system of professional manufacturers:
• Full-process service: From substrate procurement, oxidation treatment to installation guidance, one-stop solution to engineering needs.
• Case verification: give priority to brands that have participated in large-scale projects such as airports and star-rated hotels to ensure experience and reputation.
• Environmental certification: pass ISO and green building materials certification to ensure material safety and sustainability.

Anodized aluminum sheets are not only a material innovation for architectural decoration, but also a fusion of quality and aesthetics. When choosing, it is necessary to comprehensively consider the substrate, process, scene and brand strength to maximize its value. As an industry-leading anodized aluminum sheet supplier, Flait Aluminum is committed to providing customers with full-cycle solutions from selection to implementation. Choosing us means choosing strength guarantee and worry-free service.

Original Source:Anodized Aluminum Sheet Coil