In the steel processing trade circle, one of the topics that has been frequently discussed recently is the standard alignment issue between Gi Gl PPGI and China Prepainted Aluzinc Steel Coil. Many buyers, when choosing color-coated steel coils, often feel a bit unsure when they see the long list of parameters for Color Coated Steel Coil.
In fact, this connection logic is quite simple. Let's take the popular PPGL steel coil on the market as an example. Once you see it, you will understand.
PPGL essentially represents a "finishing touch" on galvalume (aluminum-zinc coated steel). Its production process is not mysterious: the base material undergoes chemical degreasing and conversion treatment to thoroughly clean the surface, then a single or multiple layers of organic coatings are applied, and finally it is baked at high temperature to set the shape.
What are the benefits of doing this?
Many experienced workers know that although the traditional aluminized zinc sheet is corrosion-resistant, it is prone to problems if left exposed for a long time. However, the PPGL organic coating is like a protective suit for the steel coil. It firmly covers the aluminum-zinc layer and is both attractive and capable of keeping out air and moisture.
According to the data feedback from the technical department of ZZ Group, this dual-layer protection mechanism has enabled the lifespan of Color Coated Steel CoilX to be approximately 1.5 times longer than that of ordinary aluminized zinc steel coils. For manufacturers producing outdoor buildings or appliance shells, this means a significant reduction in maintenance costs.
Speaking of this, we have to mention the ZZ Group.
Perhaps some new acquaintances may not be aware of it. The ZZ Group started its operations as early as the early 1980s, and its headquarters is located in Yangpu District, Shanghai. Being able to establish a foothold in the steel trading business at that time and continuing to expand to cover steel processing, raw materials, real estate, and even financial investment, with a registered capital of 200 million yuan, this is quite a powerful "established brand" in the industry.
The current main product they are promoting, China Prepainted Aluzinc Steel Coil , was able to meet the standards precisely because they fully understood the Gi Gl PPGI standards. From the weight of the aluminum-zinc layer of the base material (40-275g/m²), to whether the surface coating is PE or PVDF, every step was handled very strictly.
So, when you are looking for a color-coated coil that can meet the strength requirements and also be resistant to corrosion outdoors, you might want to take a look at PPGL. It is not a revolutionary new technology, but in terms of "durability", it has indeed taken a significant step forward compared to the old products.