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Polyester-coated color aluminum coil specifications are customized according to application scenarios and processing requirements. The main specifications are shown in the following table:
| Specification Category | Detailed Parameters | Typical Applications | Quality Control Requirements |
| Substrate Thickness | Thin: 0.15mm – 0.3mm | Home appliance panels (refrigerator side panels, washing machine covers), thin signage | Thickness deviation ≤ ±0.02mm, good flexibility |
| Medium: 0.3mm – 1.2mm | Architectural decoration (ceiling panels, wall cladding, door panels), advertising light boxes | Thickness deviation ≤ ±0.03mm, flat surface without waves | |
| Thick: 1.2mm – 3.0mm | Transportation parts (automotive trim, trailer panels), outdoor billboards, cabinet frames | Tensile strength ≥ 150MPa, good stamping performance | |
| Coating Parameters | Thin Coating: Total thickness 20–30μm (primer 5–8μm, topcoat 15–22μm) | Indoor decoration (interior wall panels, furniture panels), small home appliances | Adhesion ≥ 4B, pencil hardness ≥ 2H |
| Standard Coating: Total thickness 30–40μm (primer 8–10μm, topcoat 22–25μm) | Outdoor architectural decoration, medium-sized home appliances, signage | Color difference ΔE ≤ 1.5, neutral salt spray test ≥ 500h | |
| Thick Coating: Total thickness 40–50μm (primer 10μm, topcoat 25–30μm, backcoat 5–10μm) | Harsh environment applications (coastal architectural cladding, industrial workshop walls) | Neutral salt spray test ≥ 1000h, weather resistance test ≥ 2000h | |
| Width & Length | Standard Width: 1000mm, 1220mm, 1500mm, 1600mm | Batch production of architectural materials, home appliances, and signage | Width deviation ≤ ±0.5mm, no edge warping |
| Custom Width: 500mm – 1600mm; Length: 50–3000kg/roll | Special-sized architectural projects, customized home appliances, and transportation parts | Uniform coil tension, no creases or scratches | |
| Alloy Types | 1050/1060 Alloy (≥ 99.5% Al) | Indoor decoration, home appliances, and low-stress applications | Excellent ductility, easy to process into complex shapes |
| 3003 Alloy (with Mn 1.0–1.5%) / 5052 Alloy (with Mg 2.2–2.8%) | Outdoor decoration, transportation parts, and high-stress applications | Enhanced corrosion resistance and tensile strength |
Compared with traditional decorative materials such as steel plates, wood, and ceramic tiles, polyester-coated color aluminum coil has obvious comprehensive advantages:
| Alternative Material | Advantages of Polyester-Coated Color Aluminum Coil | Key Reason |
| Galvanized Steel Plate | Lighter weight (1/3 of steel), better corrosion resistance, richer colors, and no rust | Galvanized steel is prone to rust after the zinc layer is damaged; aluminum substrate has natural corrosion resistance, and the polyester coating enhances protection. |
| Solid Wood | No deformation, no moth-eaten, water-resistant, fire-resistant, and longer service life (15–20 years vs. 5–10 years of wood) | Wood is easily affected by moisture and temperature, leading to deformation and moth-eaten; polyester-coated aluminum is stable in physical properties and not affected by the environment. |
| Ceramic Tile | Lighter weight (reduces building load), easier to install (no need for cement bonding), and better formability (can be bent) | Ceramic tile is heavy and brittle, easy to break during transportation and installation; it cannot be processed into curved shapes. |
| PVDF-Coated Aluminum Coil | Lower cost (about 30–50% of PVDF), sufficient performance for general applications, and more color options | PVDF coating has better weather resistance but higher cost; polyester coating meets the needs of most non-harsh environment applications at a lower cost. |
