White powder coated aluminum sheet is a specially treated aluminum alloy material commonly used in construction, decoration, and home furnishing. Its surface is powder-coated for excellent corrosion and wear resistance, and aesthetics.
Basic specification of white powder coated aluminium sheet:
- Material: 1000 series pure aluminum (such as 1100), 3000 series aluminum-manganese alloy (such as 3003), and 5000 series aluminum-magnesium alloy (such as 5052). Commonly used materials include 3003-H24, 1100-H24, and 5005-H24.
- Thickness: Generally between 0.18 and 1.5 mm. Common thicknesses include 1.2 mm, 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, and 4.0 mm.
- Sheet widths: Commonly 1200 mm, 1300 mm, 1400 mm, and 1500 mm. Custom widths are available.
- Coating Materials: Mainly polyester (PE) and polyvinylidene fluoride (PVDF). The coating thickness can typically reach 50-80μm in a single application. White powder coated aluminum sheets with PVDF coatings offer superior performance, including improved corrosion and weather resistance.
- Color Code: Common RAL colors for white aluminum sheets include RAL 9003, RAL 9006, RAL 9007, RAL 9010 and RAL 9016.
Production process of white powder coated aluminum sheet:
Using a professional spray coating line, the process includes pretreatment, color spraying, and high-temperature curing. First, the aluminum sheet undergoes surface treatment to remove oil, dirt, and impurities. Then, the powder coating is applied using electrostatic spraying equipment. The powder is evenly adsorbed by static electricity, and finally, it is cured at high temperature to form a strong, glossy coating. The coating thickness typically ranges from 40-60 microns.
Features of white powder coated aluminium sheet:
- Lightweight and High Strength:
The aluminum sheet itself is lightweight (for example, a 3.0mm thick sheet weighs 8kg per square meter). It also possesses high tensile strength and excellent rigidity.
- Durable and Corrosion-Resistant:
High-quality powder coatings, such as fluorocarbon powder coatings and polyester powder coatings, offer 10-year durability without fading. They are resistant to acid rain, salt spray, and various air pollutants, offering excellent corrosion resistance, color retention, and gloss retention.
- Easy Manufacturability:
Using a pre-machining, then painting process, aluminum sheets can be fabricated into a variety of complex geometric shapes, including flat, curved, and spherical surfaces, to meet diverse design requirements.
- Uniform Coating and Diverse Colors:
Advanced electrostatic spraying technology ensures uniform adhesion between the paint and the aluminum sheet, resulting in a smooth, uniform, and vibrant coating. White powder coated aluminum sheets are available in a variety of white shades, and other colors can be customized upon request.
- Stain-Resistant and Easy to Clean and Maintain:
The non-stick nature of the fluorocarbon coating film makes it difficult for contaminants to adhere to the surface. It also offers excellent self-cleaning properties, requiring only water or a mild detergent for daily cleaning.
White powder coated aluminum sheets are widely used in the construction industry, such as roofs, walls, curtain walls, ceilings, doors, and windows. They are also used in the electronics industry, such as computer cases and electrical panels. They are also used in furniture, luggage, lighting, and billboards, providing a beautiful and durable surface finish.