PPGI (pre-painted galvanized iron) steel coils are commonly used in construction and home decoration. Their good corrosion resistance and weldability make these steel coils well suited for numerous settings. These PPGI steel coils contain a layer of zinc that works as a barrier between your steel and the environment, providing protection against rust and corrosion. The zinc layer is applied via a hot-dip galvanizing process, along with the coil could then be painted with any number of color coats. You will find people using PPGI coils in roofing panels, wall cladding, and metal roofing tiles.
PPGI vs. PPGL - Which is Preferable?
In relation to choosing a steel coating for your upcoming project, you could be wondering exactly what the difference is between PPGI and PPGL steel. Both are color coated steel, but there are a few key differences between the two.
1. PPGI uses galvanized steel as base metal. While PPGL is with galvalume sheet as the substrate, which is coated with 55% aluminum, 43.3% zinc, and 1.6% silicon. This is the main difference between PPGI and PPGL, which will further influence their features and applications.
2. The surface of the PPGL steel is smoother than that of the PPGI steel. It is because of the better adhesion of aluminum than zinc. For the same reason, PPGL sheets can be painted directly without pre-treatment. However, it is necessary to be pre-treated for galvanized sheets.
Learning to PPGI Steel Coil Making Process
The procedure of making PPGI steel coils starts off with a hot-dip galvanizing line that cleans the strip and removes any rust or scale that may be present. The strip then moves through several rollers where it is actually coated by using a thin layer of zinc. Once the zinc coating has been applied, the strip passes by way of a furnace where it can be heated to approximately 860 degrees Fahrenheit. This high temperature makes certain that the zinc coating bonds properly for the steel.
As soon as the strip has cooled, it goes through another group of rollers which gives it its final shape and thickness. The last step involves cutting the strip into coils of the desired length. PPGI steel coils are utilized in a number of applications, including construction, automotive, and appliance manufacturing. Thanks to their durability and low maintenance costs, they have become increasingly popular in recent years.
Applications of PPGI steel coils
PPGI steel coils are often utilized for roofing and siding panels. Inside the automotive industry, you will notice workers use these coils on body panels and vehicle fenders. And in the appliance industry, one can use them within the manufacture of automatic washers, dryers, and refrigerators.
Wanzhi Steel is really a top producer of PPGI steel coils. We have experienced this business for a long time and our merchandise is trusted by a huge selection of companies all over the world. By having an experienced team of engineers and technicians, we provide you with high-quality PPGI steel coils that meet your particular requirements. E-mail us today for more information on our products.