Performance comparison of aluminum plate curtain walls

Material

　　Composite aluminum panel - Two 0.5mm thick pure aluminum plates with PVC or PEC plastic in between, roll-pressed and thermally bonded.

　　Aluminum alloy single panel - 2~3mm aluminum alloy plate.

Fluorocarbon coating

　　Composite aluminum panel - Roll-printed once, the coating thickness is generally 20μm.

　　Aluminum alloy single panel - Completed with 2 or 3 spray coatings, the coating thickness is generally 30~40μm.

Color

　　Composite aluminum panel - A variety of colors are available. The color systems are mainly divided into: monochrome system and iridescent system (colors can be selected according to the design and owner's requirements). The patented color products have a film layer on the surface, excellent durability, and good color consistency.

　　Aluminum alloy single panel - Colors can be selected according to the design and owner's requirements.

Lifespan

　　Composite aluminum panel - Domestic materials last about 10 years, imported materials can reach 20 years or more in terms of color and strength, maintenance-free.

　　Aluminum alloy single panel - Up to 15 years, mostly due to deformation caused by climate and wind pressure, and fading of the surface color.

Airtightness

　　Composite aluminum panel - Open at four corners.

　　Aluminum alloy single panel - Four corners are welded and sealed.

Wind resistance

　　Composite aluminum panel - Small wind pressure deformation, imported composite materials have extremely high wind pressure resistance.

　　Aluminum alloy single panel - Large wind pressure deformation, easily deformed.

Temperature change resistance

　　Composite aluminum panel - Composite panels processed with ordinary gluing technology have a large difference in the coefficient of thermal expansion between the aluminum plate and the plastic, and are prone to bubbling and peeling. However, panels using DuPont high-polymer adhesive film will not bubble or peel.

　　Aluminum alloy single panel - With the same material, the wall panel itself is not affected by temperature changes.

Lightning resistance

　　Composite aluminum panel - Not lightning-resistant, strong current is difficult to ground through the composite aluminum panel, and the 0.5mm thick aluminum plate will be pierced.

　　Aluminum alloy single panel - Can be used as a good conductor of electricity, quickly transmitting the huge current of lightning strike to the ground through the building grounding system.

Wall panel shape

　　Composite aluminum panel - Due to material limitations, domestic processes are suitable for processing simple shapes, not suitable for folding obtuse angles, bending less than 90° is prone to breakage. Some imported composite materials can be processed complexly and can be bent 90°-150°.

　　Aluminum alloy single panel - Easy to process into shaped plates, with a large bending angle range.

Workability

　　Composite aluminum panel - Can be processed on-site, can cope with dimensional changes caused by on-site construction errors.

　　Aluminum alloy single panel - Manufactured by the factory, poor adaptability to on-site construction errors, high requirements for secondary design.

Material yield

　　Composite aluminum panel - Generally 80%~95%.

　　Aluminum alloy single panel - 100%.

Finished product rate

　　Composite aluminum panel - On-site manual grooving operation. If the depth of the groove is not well controlled, it will damage the outer aluminum plate, causing the bending to break and produce defective products. The finished product rate is generally 96%~98%.

　　Aluminum alloy single panel - Factory production, 100% finished product rate upon leaving the factory.

Construction quality

　　Composite aluminum panel - Because the wall panels are mostly processed on-site, the quality control conditions are poor, and shoddy work and substitution of inferior materials are easy to occur in this link, and the quality of the wall panels will affect the construction quality.

　　Aluminum alloy single panel - The factory controls the production quality according to international standards, the quality of the wall panels is reliable, and provides a premise for ensuring the construction quality.

Applicable scope

　　Composite aluminum panel - Suitable for curtain wall projects.

　　Aluminum alloy single panel - Suitable for facade decoration, elevated walkways, pedestrian overpasses, low-rise curtain wall surfaces and eaves.

Environmental protection

　　Composite aluminum panel - Depends on the core material selection. Generally, the core material will produce harmful gases at high temperatures, is not fireproof, and is not easily recyclable; when PLUS core material is selected, the composite panel has a fire rating of A.

　　Aluminum alloy single panel - Fireproof, easily recyclable, and does not pollute the environment.