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Coated aluminum coil for exterior applications are aluminum coils with specific coatings. By coating the surface of the aluminum coil with different materials, they possess excellent weather resistance, corrosion resistance, and decorative properties, making them widely used in building curtain walls, roofs, transportation vehicles, billboards, and other exterior applications.

Coating types of coated aluminum coil for exterior applications:

- Polyester coating (PE):

High cost-performance ratio, rich colors, and selectable gloss levels. Ordinary polyester is suitable for light outdoor applications, while weather-resistant polyester, with added UV absorbers, offers improved outdoor weather resistance and can be used for 5-8 years in non-coastal outdoor environments.

- Fluorocarbon coating (PVDF):

Extremely weather-resistant, with an outdoor service life of 15-25 years. It exhibits outstanding resistance to corrosion, fading, and pollution, making it suitable for use in harsh environments such as coastal areas, high temperatures, and high UV radiation.

For coated aluminum sheet used in exterior applications, fluorocarbon coated aluminum sheet (PVDF) and high-weather-resistant color-coated aluminum coils are recommended. These two types of products perform excellently in terms of weather resistance, fading resistance, UV resistance, and mechanical properties, meeting the needs of complex outdoor environments.

Coating structure of coated aluminum sheet for exterior applications:

- Double Coating (2 Coats, 2 Bakings):

Structure: Pretreatment → Primer → Topcoat → Curing. Coating thickness: 15-25μm. Strong adhesion and good corrosion resistance. This is the mainstream process suitable for most outdoor applications.

- Triple Coating (3 Coats, 2 Bakings / 3 Coats, 3 Bakings):

Structure: Pretreatment → Primer → Topcoat → Clear Coat → Curing. Coating thickness: 25-40μm. Superior weather resistance and stain resistance. Suitable for luxury projects such as landmark building curtain walls.

Performance characteristics of coated aluminum coil for exterior applications:

- Weather resistance:

Resistant to the effects of UV rays, wind, rain, and temperature changes. Less prone to fading, chalking, and cracking.

- Corrosion resistance:

Excellent resistance to acid, alkali, and salt spray corrosion. Effectively protects the aluminum substrate and extends its service life.

- Decorative properties:

Offers a rich variety of colors and surface effects, such as high gloss, matte, wood grain, and stone textures, to meet different architectural styles and design requirements.

- Lightweight and high strength:

Aluminum itself is lightweight yet strong, facilitating transportation and installation, making it suitable for large-scale applications.

- Environmentally friendly:

Aluminum is recyclable, meeting the environmental requirements of modern buildings.

- Mechanical properties:

Coated aluminum coils possess a certain degree of flexibility and hardness, adapting to bending, stamping, and other processing techniques, facilitating construction and installation.

- Easy maintenance:

The surface coating makes it easy to clean, resulting in low maintenance costs.

Application scenarios of coated aluminum coil in exterior applications:

- Building exterior walls and curtain walls:

Fluorocarbon coated aluminum coils are commonly used in high-rise buildings and airport terminals to ensure long-term aesthetics and durability.

- Roofs:

Fluorocarbon or polyester coated aluminum coils are frequently used in industrial plant roofs and warehouse roofs, balancing weather resistance and cost.

- Window and door frames:

Used in window and door frames, providing a durable and aesthetically pleasing appearance.

- Balcony railings:

Used for railings on balconies and terraces, offering both beauty and safety.

- Advertising signs:

Due to their rich colors and cost-effectiveness, polyester coated aluminum coils are frequently used in the production of advertising signs.

- Landscape features:

such as pavilions, towers, and pergolas in gardens, can be made of coated aluminum coils with wood grain or other decorative effects to create an aesthetically pleasing visual effect.

If you are interested in the coated aluminum coil for exterior applications, we BCM Alu can supply high quality product with stable quality and competitive price, do not hesitate to contact us for a quote.