Aluminum PET Sandwich Panel
The aluminum PET sandwich panel bonds two aluminum sheets to a polyethylene terephthalate (PET) foam core, delivering structural performance with reduced weight. The aluminum skin uses alloys such as 1050, 1060, 3003, 5052, or 6061 in thicknesses from 0.1 mm to 6.0 mm, while the rigid, closed-cell PET foam core ranges from 80 kg/m³ to 300 kg/m³ density in virgin or recycled forms.
The aluminum provides corrosion resistance, moisture protection, and chemical stability. Softer alloys suit energy absorption applications, while harder grades meet high-strength structural demands. The closed-cell PET foam exhibits very low water absorption for stable performance in humid environments, delivers high compressive strength and bending resistance, and contributes thermal insulation through low thermal conductivity. Both aluminum and PET foam are recyclable materials.
Surface treatments including anodizing, painting, embossing, brushing, sandblasting, and polishing enable varied colors and textures while maintaining physical and chemical stability.
Transportation applications include dry cargo truck and trailer bodies, fire trucks, ambulances, buses, subway cars, and recreational vehicles, reducing weight to improve fuel efficiency and payload capacity. Building applications encompass exterior wall cladding, roofs, interior panels, ceilings, and partitions. Additional uses span marine structures, aviation interiors, modular buildings, cold storage, and industrial enclosures.
