Aluminum Honeycomb Panels – Types and Specifications

Aluminum honeycomb panels are composite panels made up of three layers: a central core of aluminum honeycomb and two aluminum sheets. These layers are bonded using thermoplastic adhesive films to create a durable sandwich structure.

Because aluminum honeycomb panels are strong and lightweight, they are cost-effective options for flooring, marine, ceilings, cladding, and transportation. They offer affordability, durability, and strength for those applications.

Types

Top manufacturers apply various treatments to honeycomb aluminum sheets, such as powder coating, PE, PVDF, and heat transfer printing, to meet specific aesthetic requirements. Additionally, they have developed advanced manufacturing techniques to produce aluminum honeycomb panels with unique shapes, such as 3D, 90-degree return, and curved.

Specifications

To create the final product, the films, and layers are hot-pressed at approximately 150 degrees Celsius. The resulting aluminum honeycomb panels are weather-resistant and elastic, able to withstand the most extreme weather conditions and temperatures of -40 to 80 degrees Celsius.

Manufacturers offer these panels with the following specifications:

• Widths of up to 2000mm
• Lengths of up to 6000 mm
• Overall thickness from 5 mm to 500mm
• Aluminum sheets ranging from 0.5mm to 2mm thick
• 3003 or 5052 aluminum alloys
• Surface finishing with PVDF, powder coating, mill, anodizing, PE, etc.
• 2Mpa flatwise compressive strength
• 1.4Mpa (thermoplastic films) or 2Mpa (modified epoxy adhesive) flatwise tensile strength
• 0.5Mpa (thermoplastic film) or 0.8Mpa (modified epoxy adhesive) flatwise shear strength
• 50N.mm/mm (thermoplastic film) or 60N.mm/mm (modified epoxy adhesive) drum peeling strength
• 60 Mpa flexural strength
• Temperature resistance of up to 120 degrees Celsius with thermoplastic films or 80 degrees Celsius with modified epoxy adhesive
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Some specifications on aluminum honeycomb panels change depending on the adhesive used. Manufacturers use thermoplastic films to laminate the panels. 

The films are solid at room temperature and melt at around 130 degrees Celsius. They offer greater weather resistance and elasticity than traditional epoxy glue and can withstand rapid temperature changes without failing. Moreover, they endure high heat from sunlight during hot summers.

Alternatively, manufacturers may use epoxy adhesive with a modified formula for aluminum honeycomb panels. The aluminum sheets are coated with a patented epoxy-friendly layer to enhance the bonding strength. Compared to thermoplastic films, this provides over 50 percent greater tensile strength, making it suitable for interior or exterior use and for panels requiring stronger bonding.