| Product | Aluminum Color Coated Coil |
| Property | Anti-Corrosion,Heat Resistant |
| Surface | Color Coated Coil |
| Production Process | Cold Rolled,Hot Rolled |
| Internal Diameter | 300mm,405mm,505mm or per request |
| Temper | O,H14,H24,H32,H112 Etc;T4,T651 Etc |
| Thickness | 0.3mm - 60mm |
| Width | 600mm - 2600mm |
| Coil Weight | 2-4 tons |
| MOQ | 7 tons(According to specifications) |
| Payment Term | TT,LC,WestUnion |
| Package | Export wooden pallets,craft paper,anti-blushing agent. |
| Delivery Time | Future goods:15-20 Work days,Ready Stock:7-10 days. |
| Quality of Material | Totally free from defects like white rust,roll marks,adge damage,camber,dents,holes,break lines,scratches and free from coil set. |
| Kind Attention | Specification can be custommized as the customer's requirements. |
Product Description
Prepainted Aluminum Alloy Coils and Sheets, available in PPGI (Polyester), PPGL (PVDF), PE (Polyethylene), and PVDF (Polyvinylidene Fluoride) coatings, are premium building materials combining the lightweight strength of aluminum with the protective and aesthetic benefits of pre-applied organic coatings. Manufactured from alloy series like 3003 (aluminum-manganese) or 5005 (aluminum-magnesium), the substrate offers excellent corrosion resistance and formability. The coating process involves degreasing, chromate conversion coating (for adhesion), and roller-coating of the organic layer. PE coatings (20-30μm) provide good general-purpose protection, while PVDF coatings (25-40μm) offer superior UV resistance and chemical durability. Available in widths up to 1500mm and thicknesses 0.2-2.0mm, these coils/sheets cater to high-end architectural and industrial applications.
Features
Exceptional Weather Resistance: PVDF coatings (e.g., Kynar 500®) maintain color and gloss for 20+ years, making them ideal for tropical or coastal climates, while PE coatings offer 10-15 years of performance.
Lightweight & Strong: Aluminum density (2.7g/cm³) is one-third that of steel, reducing structural load while maintaining yield strength of 100-250MPa (depending on alloy).
Design Flexibility: Wide color range, including metallic and pearlescent finishes, plus optional embossed textures (stucco, wood grain) for architectural creativity.
Corrosion Immunity: Aluminum's natural oxide layer, combined with the coating, provides resistance to salt spray, 酸雨，and atmospheric pollution, eliminating the need for frequent maintenance.
Thermal Stability: PVDF coatings withstand temperatures up to 150°C, while PE coatings perform well up to 100°C, suitable for applications with moderate heat exposure.
Application
Architectural Facades: Used for curtain walls, rainscreen cladding, and decorative panels in commercial buildings, airports, and stadiums, where long-lasting aesthetics are critical.
Transportation: Manufactures bus bodies, train interiors, and aircraft components due to lightweight and fire resistance (aluminum is non-combustible).
Solar & HVAC: Ideal for solar panel frames, air ducting, and radiator components requiring corrosion resistance and thermal conductivity.
Marine Applications: Suitable for boat interiors, offshore platforms, and coastal buildings where salt resistance is paramount (PVDF-coated 5052 alloy).
FAQ
Q: What's the difference between PE and PVDF coatings?
A: PVDF offers superior UV resistance, color retention, and chemical resistance, making it more expensive but suitable for harsh environments, while PE is cost-effective for general use.
Q: Can these sheets be welded?
A: Yes, but coating removal is required at weld points, and post-weld touch-up with matching paint is necessary.
Q: How do I clean prepainted aluminum sheets?
A: Use soft brushes and neutral detergents; avoid abrasive cleaners or high-pressure washing that could damage the coating.
Q: What alloy should I choose for marine applications?
A: 5052 or 5083 aluminum-magnesium alloys with PVDF coating offer the best saltwater resistance.
Q: Can the coils be customized for specific project sizes?
A: Yes, we offer slitting and cut-to-length services to meet project-specific dimensions, with minimum order quantities applicable.
