The coating was aluminized zinc steel made of 55% aluminum, 43.3% zinc and 1.6% silicon. Aluminum forms a honeycomb layer around the zinc, which can protect the metal from further attack. This means that PPGL will be more durable. According to the data, the service life of PPGL roof panels under normal circumstances is more than 25 years. In addition, it is beautiful and generous, with various colors, patterns and patterns, which can meet different architectural styles. More importantly, PPGL steel has excellent heat resistance, which makes it an ideal roofing material even in hot climates. Whether it is home or investment, PPGL roof panels will be a good choice.
Product Parameters
Color Selection
We provide many colors to choose from, the following are common colors, if you like other colors or patterns, please send us the RAL color code.

PPGL is short for pre-coated aluminum-zinc steel, which uses aluminum-zinc steel as the base material. It is widely used in many fields, especially in roof and wall systems.
High Corrosion Resistance
The coating was aluminized zinc steel made of 55% aluminum, 43.3% zinc and 1.6% silicon. Aluminum will form a honeycomb layer around the zinc, which can protect the metal from further attack. This means that PPGL will be more durable. According to the data, the service life of PPGL roof panels under normal circumstances is more than 25 years.
Excellent Heat Resistance
Galvanized zinc steel has good heat resistance and can withstand high temperatures above 300 degrees. In addition, it also has the characteristics of high thermal reflectivity. It can therefore even be used as an insulating material. This is why PPGL is a good choice for roofing materials.
Easy Installation And Maintenance
The weight of the PPGL sheet is much lighter than conventional materials. It can also be used directly. All you need to do is connect the roof slabs. As a roof, it is very easy to install to reduce construction time and cost. In addition, it is made of high-strength steel, which is enough to withstand extreme weather. No matter where you are, PPGL will be a cost-effective solution for your roof.
Beautiful Appearance
The aluminized zinc steel plate has good adhesion and smooth surface. Moreover, it can keep the color for a long time. Not only that, Wanzhi Steel also provides a variety of finishes and designs of PPGL corrugated board to choose from, which can adapt to different architectural styles. So no matter what color you want, glossy or matte, dark or light, please contact us for more details.
Scope of Application
Agricultural Applications: Including but not limited to greenhouses, chicken coops, stables, hay barns and barns
Residential Applications: Including residential houses, simple houses, apartments, towers, garages, storage sheds, etc.
Commercial applications: For example, factories, warehouses, manufacturing plants, department stores, office buildings, etc.
Public Buildings: Such as cinemas, exhibition halls, gymnasiums, terminal buildings, schools, hospitals, etc.
Chemical Industry
steel is used to construct facilities such as large storage tanks, refining equipment, and chemical pipelines.
Natural Gas Industry
Steel is also widely used in the energy industry, such as oil and gas pipelines.
Oil Pipeline
In the oil and gas industry, carbon steel is used to manufacture various equipment and pipelines.
Ship
In shipbuilding, steel is used to manufacture key components such as ship structures and engine parts.
Stadium
Steel plays an important role in steel structure buildings such as high-rise buildings, large-span buildings, and sports venues.
Water Treatment
The application of steel in water treatment is mainly reflected in the construction of water treatment equipment and the production of components such as pipelines.
Q1: What metal materials do you supply?
Jiangsu Zhongersheng is a professional manufacturer mainly supplying carbon steel, hot-dip galvanized steel, PPGI color coated steel, 201/304/316 stainless steel sheets, coils, tubes and profiles, as well as various steel structural parts. Our products serve infrastructure, photovoltaic, machinery manufacturing, chemical and new energy industries.
Q2: Can you customize material grades, thickness and sizes?
Full customization is available. For carbon steel, galvanized steel and stainless steel, thickness, width and length can be adjusted in accordance with ASTM & EN standards. Profiles can be cut and processed as per drawings, and special steel materials can be customized via production line scheduling.
Q3: What’s the difference between galvanized steel and color coated PPGI?
Hot-dip galvanized steel features pure zinc anti-rust coating with cost-effective and wear-resistant performance, suitable for steel brackets, guardrails and load-bearing structures, and supports secondary painting. PPGI takes galvanized sheet as base material with colorful coating for anti-rust & decorative purposes, widely used for factory roof/wall panels and energy storage housings. Thick galvanized steel is recommended for rainy coastal areas, while PPGI is ideal for decorative outdoor projects.
Q4: Do you have spot inventory? What’s your MOQ?
We built a 10,000-ton standardized warehouse with abundant spot stock of carbon steel, galvanized steel and stainless steel. MOQ is 1 ton for standard sizes; small samples of dozens of kilograms are acceptable. No upper limit for bulk engineering orders, mixed container loading of multiple steel types is supported.
Q5: How long is the delivery time for spot goods & customized goods?
Spot goods can be loaded within 3-7 days; simple cutting & bending processing orders take 7-10 days; mould opening & special steel customization takes 15-30 days, subject to specific specifications confirmation.
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