PPGI (Pre-painted Galvanized Iron) and PPGL (Pre-painted Galvalume Steel) are both types of metal materials, but their uses and manufacturing processes are different.

PPGI is pre-coated galvanized steel with a treated and pre-painted surface, commonly used in the construction industry and furniture manufacturing. This material is characterized by bright and long-lasting colors, as well as good corrosion resistance.

PPGL is a pre-coated aluminum-magnesium alloy plate. It is pre-coated on the surface of the galvanized steel plate and then colored. Due to the characteristics of aluminum-magnesium alloy, PPGL has better weather resistance and UV resistance, so it is often used in outdoor decoration and building materials.

In summary, the main difference between PPGI and PPGL lies in their different materials. PPGI is a galvanized steel plate, while PPGL is a surface treatment product of galvanized steel plate. In addition, the color performance and application fields of the two are also different.