Common pre painted metal sheets include pre painted aluminum sheet, pre painted steel sheet, pre painted stainless steel sheet and so on. Among them, the most popular one is pre painted aluminum sheets.
Pre painted aluminum sheets usually uses a variety of aluminum alloys as the substrate, common AA3003, AA3105 and so on. These aluminum alloys have good mechanical and processing properties, and are suitable as materials for construction and industrial applications. The temper of pre painted aluminum sheets is usually semi-hard (H14, H16, etc.) or fully hard (H18, H24, etc.). The different states affect the hardness and ductility of the aluminum sheet, thus adapting it to different processing and application needs. Pre painted aluminum sheets are available in a wide range of thicknesses, with conventional thicknesses between 0.20mm and 1.5mm. Thicker or thinner specifications are also available. The specific thickness depends on the application requirements, which vary from one area to another, such as building facades, roofing, interior decoration, and so on. The width of pre-painted aluminum sheets is generally between 550mm and 1800mm, with a wide range of widths to meet the processing needs of different sizes and shapes. In practice, they can be cut or spliced according to specific project requirements.
The coating of pre painted metal sheets are several with different usage:
- PE(polyester) coating:
With strong weather resistance, stable color and high gloss, it is suitable for outdoor walls, roofs, ceilings and other architectural decoration fields.
- PVDF coating:
Characterized by corrosion resistance, aging resistance, high temperature resistance, self-cleaning, etc. It is suitable for high-grade building exterior walls, ceilings, billboards and other areas that require high weather resistance and high decorative properties.
- Wood grain or marble grain coating:
Wood grain pattern is printed on the surface of aluminum plate through printing process, which has the decorative effect of wood grain and the excellent performance of aluminum, and is suitable for furniture, flooring, doors and windows, and other fields.
Pre painted aluminum sheets are most popular for the following reasons:
1. Lightweight:
Aluminum is a lightweight metal, lighter compared to other metal materials, easy to carry and install.
2. Corrosion resistance:
Aluminum has good corrosion resistance, not easy to rust, suitable for a variety of harsh environments.
3. Decorative:
Pre painted aluminum sheets has various colors, can be customized according to customer needs, with good decorative effect.
4. Convenient maintenance:
The surface of pre painted aluminum sheet is smooth and flat, easy to clean and maintain, and does not require frequent maintenance.
5. Environmental protection:
Aluminum is a recyclable metal, in line with the modern concept of environmental protection.
To sum up, pre painted aluminum sheet has the advantages of light weight, corrosion resistance, good decorative properties, easy maintenance and environmental protection, so it is widely welcomed. With the continuous progress of technology and market expansion, the application fields of painted aluminum sheet will be further expanded.