1. Composite structure characteristics
Base material performance
Lightweight and high strength: Aluminum (density of about 2.7g/cm³) is used as the base material, which is only 1/3 of the weight of steel, and the tensile strength can reach more than 100MPa, combining lightweight and load-bearing capacity.
Corrosion resistance: The surface of the aluminum substrate is naturally oxidized to form a dense aluminum oxide film, which is further enhanced with the PVC coating to enhance moisture resistance and acid and alkali resistance, and is suitable for coastal high salt fog environment.
Plasticity: Aluminum supports complex processing techniques such as stamping and bending, and can be made into arc-shaped, hollow and other special-shaped decorative components.
PVC coating performance
Waterproof and moisture-proof: The PVC layer isolates moisture penetration, and the water absorption rate is less than 0.1%, which effectively avoids mildew and deformation.
Flame retardant and high temperature resistant: Passed Class A fireproof certification, some models can withstand temperatures up to 90°C, do not support combustion when encountering fire, and there is no dripping.
Weather resistance and durability : PVC coating has excellent UV resistance, outdoor service life of more than 15 years, and fading rate less than 5%.
Surface diversity : Supports matte, high gloss, wood grain, stone grain and other surface treatments, suitable for modern and retro style designs.
2. functional advantages Convenient construction The roll can be directly cut to a custom size, and with snap or welding technology (such as hot air welding), the construction efficiency is increased by 40%.
Environmental compatibility The material is RoHS certified, no formaldehyde is released during the production process, the recycling rate exceeds 80%, and it meets green building standards (such as LEED).
Chemical corrosion resistance Resistant to corrosion by chemicals such as acids, alkalis, oils, etc., suitable for special scenarios such as food packaging and laboratory walls.
3.Technical Parameter Reference
| Indicator | Typical Value | Applicable Standard |
|---|---|---|
| Aluminum Substrate Thickness | 0.1 – 3.0 mm (customizable) | GB/T 3880 |
| PVC Coating Thickness | 0.25 – 4.0 mm | GB 12952-2011 |
| Tensile Strength | ≥ 15 MPa (longitudinal) | ASTM D638 |
| Applicable Temperature Range | -40℃ to 90℃ | ISO 22088 |
4.Application scenario adaptation suggestions
Building facade: It is recommended that the aluminum substrate with a thickness of ≥1.5mm is matched with an anti-ultraviolet PVC layer to enhance the wind pressure resistance.
Indoor decoration: Choose a 0.5-1.0mm substrate with a matte coating, which takes into account both beauty and wear resistance.
Industrial packaging: Food-grade PVC-coated aluminum coils are preferred to ensure acid and alkali resistance and hygienic safety.
