In modern architecture, signage, перевозка, and many other industrial applications, coated aluminum sheeting is highly sought after for its exceptional durability, эстетика, and lightweight properties. Однако, not all coated aluminum sheeting is created equal. Understanding the differences between different types of coated aluminum sheeting is crucial for making an informed choice for your specific project. This article will delve into the common types of coated aluminum sheet available on the market to help you understand their characteristics and application scenarios.
What is coated aluminum sheet?
Before delving into the different types, let’s first define coated aluminum sheet. Coated aluminum sheet refers to aluminum sheeting with one or more layers of organic coating applied to the surface of the aluminum substrate. This coating not only imparts a rich color and luster but, more importantly, provides additional protection, enhancing weather resistance, устойчивость к коррозии, UV protection, and abrasion resistance.
Common Coating Types
The performance and application of coated aluminum sheet primarily depends on its surface coating. The following are some of the most common coating types:
1. Polyester Coating (Финиш)
Coating Composition:
Polyester resin is the primary film-forming substance, with pigments and additives added, and is cured by high-temperature baking. посадка в теплице:
Cost-Effective: PE coating is the lowest cost of all coating types, making it very popular for projects with strict budget constraints.
Extensive Color Selection: Available in a wide range of colors and gloss levels.
Good Processability: The coating exhibits good flexibility, making it easy to cut, punch, and bend.
Moderate Weather Resistance: Suitable for indoor applications or outdoor environments where weather resistance is not a priority. Long-term exposure to strong UV rays may cause fading and chalking.
Приложения:
PE-coated aluminum sheets are commonly used for interior decoration, billboards, потолки, appliance panels, and building exteriors where weather resistance is not a priority.
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