Aluminum Skin PET Foam Sandwich Panels
Weather-resistant lightweight composite panels
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Aluminum skin PET foam sandwich panels are a composite material widely used in applications requiring lightweight yet durable properties. These panels consist of two layers of aluminum and a core of PET (polyethylene terephthalate) foam. This combination offers numerous advantages, making it an ideal choice for a variety of industrial applications.
Product Advantages
- Lightweight: Aluminum is a low-density metal material, about 1/3 of steel.
- Corrosion resistance: Aluminum has excellent oxidation resistance and weather resistance, which is significantly better than steel.
- Environmental protection: Aluminum and PET foam are recyclable materials with high recycling rates.
- Beautiful and flexible: The surface of aluminum sheets can be processed into various colors and patterns.
Specifications
| Aluminum Sheet Grade | 1050, 1060, 1100, 3003, 3105, 3004, 5052, 5083, 5754, 6061, 6063, 6082, etc. |
| Surface Treatment | Anodizing, painting, embossing, brushing, sandblasting, polishing, etc. |
| Core | PET (Polyethylene terephthalate) foam. (Density: 60-300kg/m³). |
| Composite Method | Unsaturated polyester adhesive, polyurethane adhesive, etc. |
| Thickness | 10-150mm. |
| Length | ≤12000mm. |
| Width | ≤2600mm. |
Structural Diagram
Aluminum sheet grades and properties
Different grades of aluminum alloy sheets are used as the skin of sandwich panels. Some of them are softer and suitable for buffering and energy absorption, while others are harder and suitable for high-strength structural requirements.
| Series | Typical Alloy | Main Alloying Elements | Tensile Strength (MPa) | Corrosion Resistance | Workability | Heat-treatable |
|---|---|---|---|---|---|---|
| 1000 | 1060 | Pure aluminum | 95-125 | Excellent | Excellent | No |
| 3000 | 3003 | Manganese | 140-180 | Good | Good | No |
| 5000 | 5052 | Magnesium | 230-280 | Good | Good | No |
| 6000 | 6061 | Silicon, Magnesium | 240-290 | Good | Excellent | Yes |
| 7000 | 7075 | Zinc, Magnesium, Copper | 540-580 | Poor | Moderate | Yes |
Aluminum surface treatments
Because aluminum is easy to process, the surface of aluminum plates can be processed into a variety of rich textures and colors while maintaining long-lasting physical and chemical stability, and applied in different scenarios. For example, the smooth polished surface is suitable for wall panels, ceilings, partitions, etc., while the diamond-shaped plates are suitable for floors.
PET Foam Core
The structural characteristic of PET (polyethylene terephthalate) foam is that the bubbles inside the foam are closed and not connected to the outside world. This special structure gives PET foam the following unique advantages:
- Low water absorption: Since the bubbles are closed, water cannot enter the foam, making it extremely low in water absorption and able to be used stably for a long time in a humid or underwater environment.
- High mechanical strength: The closed bubbles provide strong structural support, making the closed-cell PET foam show higher compressive strength and bending resistance when subjected to external forces.
Performance parameters
We provide both virgin and recycled PET foam cores depending on application requirements.
| Test items | Standard | unit | Value | TS80 | TS100 | TS120 | TS150 | TS200 | TS50 |
| Density | ISO845 | kg/m³ | Range | 85-95 | 100-110 | 120-130 | 150-160 | 190-210 | 235-260 |
| Compression strength | ISO844 | MPa | AVG | 0.85 | 1.20 | 1.80 | 2.40 | 3.90 | 5.20 |
| Compression modulus | ISO844 | MPa | AVG | 73 | 100 | 115 | 140 | 200 | 235 |
| Tensile strength | ASTM C297 | MPa | AVG | 1.40 | 1.80 | 2.20 | 2.50 | 3.20 | 4.00 |
| Tensile modulus | ASTM C297 | MPa | AVG | 90 | 110 | 120 | 160 | 210 | 275 |
| Shear Strength | ISO1922-2012 | MPa | AVG | 0.55 | 0.80 | 0.90 | 1.25 | 1.70 | 2.05 |
| Shear modulus | ISO1922-2012 | MPa | AVG | 13.5 | 23.0 | 27.0 | 35.0 | 51.0 | 70.0 |
| Roller peeling | ASTM D1781 | mm.N/m | AVG | 20 | 20 | 20 | 20 | 20 | 20 |
Applications
Aluminum skin PET foam sandwich panels offer numerous benefits across numerous industries. Our aluminum sandwich panels withstand the test of extreme environments and are a vital component of modern construction, transportation, aerospace, and new energy solutions.
Transportation
Lightweight yet strong aluminum sandwich panels help reduce the overall weight of vehicles, improving fuel efficiency and payload capacity. Such as:
- Dry cargo trucks.
- Dry cargo trailers.
- Fire trucks.
- Ambulances.
- Buses.
- Subways.
- RVs, etc.
Buildings
Aluminum sandwich panels can be finished in a variety of coatings and textures to create a modern, stylish look while providing exceptional durability and low maintenance. Such as:
- Exterior wall cladding.
- Roofs.
- Interior wall panels.
- Ceilings.
- Partitions, etc.
Marine
Aluminum sandwich panels can be used for ship structure construction, which can overcome the corrosion problems caused by the high-salt and humid marine climate and extend the service life of the ship.
Aviation
Aluminum sandwich panels are used in aircraft interiors, including partitions, ceilings, and floors, because they are lightweight, strong, and corrosion-resistant.
TOPOLOGROUP also produces aluminium skin sandwich panels with XPS (Extruded Polystyrene), PU (Polyurethane) and PVC (Polyvinyl Chloride) foam cores. Please contact us for more information.
