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Pre-painted Aluminum Sheet - Mill Direct Manufacturer |
China
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of Pre-painted Aluminum Sheet
| Property | Parameter | Description |
|---|---|---|
| Product Name | Pre-painted Aluminum Sheet | Aluminum sheet coated with organic paint/coating on one or both sides |
| Material Grade | 1100, 3003, 3105, 5052, 8011 | Equivalent to EN AW-1100, EN AW-3003, EN AW-5052; commonly used alloy series for coil coating |
| Standard Compliance | ASTM B209, EN 485-2, GB/T 3880 | Base metal standards; coating per ASTM D3359, EN 13523 series |
| Chemical Composition | Al ≥99.0% (1100); Mn 1.0–1.5% (3003); Mg 2.2–2.8% (5052) | Alloy composition per ASTM B209 / EN 573-3 specifications |
| Tensile Strength | 110–260 MPa | Varies by alloy and temper; e.g., 5052-H32: ≥228 MPa per ASTM B209 |
| Yield Strength | 85–215 MPa | 5052-H32: ≥193 MPa; 3003-H14: ≥145 MPa per ASTM B209 |
| Elongation | 4–25% | Measured over 50 mm gauge length; varies by alloy and temper |
| Temper | O, H14, H16, H18, H24, H32 | Annealed to strain-hardened tempers available per ASTM B209 |
| Thickness Range | 0.15–4.0 mm | Common range for pre-painted sheet/coil; custom thickness available |
| Width Range | 600–2000 mm | Standard coil width; slit-to-width service available |
| Coating Type | PVDF, PE (Polyester), SMP, HDP, Epoxy | PVDF offers superior UV/weather resistance; PE suitable for interior use |
| Coating Thickness | Top coat: 15–35 µm; Primer: 5–10 µm; Back coat: 5–15 µm | Total DFT measured per ASTM D1005 / EN 13523-1 |
| Surface Finish | Smooth, Embossed, Brushed, Matte, Glossy | RAL/Pantone custom colors available; gloss level 10–90 GU (60°) |
| Application | Roofing, cladding, ACP panels, signage, gutters, interior decoration, appliances | Widely used in construction, transportation, and consumer goods industries |
| Certification | ISO 9001, CE, RoHS, REACH, SGS | Third-party inspection and mill test certificate (MTC) available upon request |
| Packaging | Coil on steel mandrel or flat sheet in wooden pallet; moisture-proof wrapping | |
| MOQ | 2 MT per color/specification | Stock items available; OEM orders accepted with lead time 15–25 days |
Pre-painted Aluminum Sheet - Mill Direct Manufacturer |
Pre-painted aluminum sheet is a versatile, high-performance material that has become an essential choice across construction, transportation, appliance manufacturing, and signage industries. Also referred to as color-coated aluminum sheet, it combines the inherent lightweight strength of aluminum with a factory-applied organic coating system that delivers both aesthetic appeal and long-term durability. Unlike field-painted surfaces, the mill-applied coating undergoes rigorous curing processes, resulting in a finish that resists chipping, fading, and environmental degradation far more effectively. As a mill-direct manufacturer, we supply premium grade pre-painted aluminum sheet in a broad spectrum of colors, alloys, and tempers to meet the precise demands of OEM fabricators, architectural contractors, and industrial buyers worldwide. Whether you require PVDF fluorocarbon coatings for exterior cladding or polyester finishes for interior décor panels, our production lines are equipped to deliver consistent quality at cost-effective mill-direct rates with short lead times and full traceability documentation.
What is Pre-painted Aluminum Sheet?
Pre-painted aluminum sheet is a flat-rolled aluminum substrate—typically alloy series 1100, 3003, 3105, or 5052—that has been cleaned, chemically pre-treated, and coated with one or more layers of organic paint in a continuous coil-coating line before being cut to sheet form. The result is a ready-to-fabricate product with a uniform, factory-controlled finish on one or both sides, eliminating the need for secondary painting operations and reducing overall production costs for downstream manufacturers.
Pre-painted Aluminum Sheet Manufacturing Process
Production begins with decoiling and surface cleaning using alkaline degreasing and acid etching to remove oxides and contaminants. A chromate or chromate-free conversion coating is then applied to enhance adhesion and corrosion resistance. The substrate passes through a precision roll-coat applicator where primer and topcoat layers—polyester, PVDF, or SMP—are deposited at controlled film thicknesses between 5 µm and 25 µm per layer. High-temperature cure ovens at 220–260 °C cross-link the coating, followed by water quenching and tension-leveling to ensure flatness within ±0.5 mm/m before final slitting and shearing.
Pre-painted Aluminum Sheet Technical Specifications
Our pre-painted aluminum sheet is available in thicknesses from 0.20 mm to 4.00 mm and widths up to 1,600 mm. Alloy 3003-H16 delivers a tensile strength of 150–195 MPa, while alloy 5052-H32 achieves a minimum tensile strength of 228 MPa per ASTM B209. PVDF topcoat pencil hardness reaches HB–2H with a gloss retention of ≥80% after 2,000 hours of UV exposure per ASTM G154. Salt spray resistance exceeds 3,000 hours per ASTM B117, and T-bend flexibility is rated T1–T2 with no cracking, ensuring reliable performance in roll-forming, stamping, and deep-drawing applications.
Get a Competitive Quote for Pre-painted Aluminum Sheet
Ready to source superior quality pre-painted aluminum sheet at mill-direct rates? Our team provides tailored solutions for bulk orders and custom specifications, backed by full material certifications and fast global shipping. Reach out now and receive a detailed quotation within 24 hours.
- 24/7 customer support available
- Free samples for quality evaluation
- Competitive pricing for bulk orders
- Professional technical consultation
Contact us today to get your free quote within 24 hours!
