Understanding the Difference between PPGI and PPGL

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PPGI (Pre-painted Galvanized Iron) and PPGL (Pre-painted Galvalume) are two of the most commonly used coated steel products in the market. While they may seem similar at first glance, there are some important differences that you need to be aware of. Here are some of the key differences:

1. Substrate Material: 

The primary difference between PPGI and PPGL is the substrate material. PPGI uses galvanized steel as the substrate, while PPGL uses galvalume steel. Galvalume steel is a blend of zinc, aluminum, and silicon, which makes it more resistant to corrosion than galvanized steel.

2. Coating Composition: 

Another difference between PPGI and PPGL is the composition of the coating. PPGI uses a coating of zinc and other additives, while PPGL uses a coating of aluminum-zinc alloy. This gives PPGL better corrosion resistance than PPGI, particularly in harsh environments.

3. Appearance: 

PPGI and PPGL also differ in terms of their appearance. PPGI has a smooth and glossy surface, while PPGL has a slightly rougher surface with a matte finish. PPGL is also available in a wider range of colors than PPGI.

4. Applications:

 Both PPGI and PPGL have a wide range of applications, including roofing, wall cladding, and interior decoration. However, PPGL is particularly well-suited for outdoor applications where high corrosion resistance is required.

At Ton Nam Kim - Nam Kim Steel, we offer a range of high-quality coated steel products, including PPGI and PPGL. Our PPGI and PPGL products are available in a range of colors and sizes to meet the specific needs of our customers. We use only the highest quality substrate materials and coatings to ensure that our products are durable, long-lasting, and resistant to corrosion.

In conclusion, understanding the difference between PPGI and PPGL is important when selecting the right coated steel product for your application. While both products are similar in many ways, they differ in terms of substrate material, coating composition, appearance, and applications. At Ton Nam Kim - Nam Kim Steel, we are committed to delivering high-quality PPGI and PPGL products that meet the specific needs of our customers.

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