PPGI is GI steel sheets coated with a colored paint layer.
Characteristics: PPGI steel sheets offer not only the corrosion resistance of galvanized steel but also a vibrant and customizable appearance. They are widely used in construction, manufacturing, and decorative applications.
Uses: Roofing, wall panels, door frames, appliance housings, etc.
The full form of PPGI is pre-painted galvanized iron. It is a kind of color coated steel or pre-painted steel, which is an extension of GI. As the name implies, it uses zinc-coated steel as substrate, and then it is cleaned, pre-treated, and applied with layers of coatings to make it more beautiful and durable to use. We adopt the coil coating process to make PPGI coils. With slitting, shearing, and roller equipment, we also have strips, plain and corrugated sheets for sale.
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.

Advantages of Color Coated Plate
Custom Colors
You can choose any RAL color, as well as customize the pattern according to your needs. The beautiful surface makes the color coated board decorative. So it can be directly used in many fields.
Tough Soating
Color coated steel plate including PPGL plate PPGI steel, the use of continuous coil coating, the surface luster bright, no cracking, no peeling. In addition, it can keep the color for at least 10 years.
Excellent Mechanical Properties
The color coated plate retains the mechanical properties of the base metal, such as tensile strength. In addition, the application of the coating can protect the surface from rust, thereby extending its service life. Studies have shown that the service life of color-coated steel sheets is 50% longer than that of galvanized steel sheets.
Easy to Use
Different from the coil, the color coated plate is a kind of finished product. This means that it can be directly used in many industries. Considering its light weight, it is easy to carry and install. In addition, due to its aesthetic appearance, no additional decoration is required. Also, less maintenance is required during the service life.
Coating Type
In the coil coating, the durability of the role is the resin and pigment, the most commonly used finish polyester, silicon modified polyester, high durability polyester and polyvinylidene fluoride.
Polyester PE
Good adhesion, rich color, wide range in formability and outdoor durability, medium chemical resistance, low cost.
Silicon Modified Polyester SMP
The hardness, abrasion resistance and heat resistance of the coating film are good; as well as good external durability and powder resistance, gloss retention, general flexibility and medium cost.
High Durability Polyester HDP
Excellent color retention and UV resistance, excellent outdoor durability and chalking resistance, good film adhesion, rich color, excellent cost performance.
Polyvinylidene Fluoride PVDF
Excellent color retention and UV resistance, excellent outdoor durability and chalking resistance, excellent solvent resistance, good formability, dirt resistance, limited color, and high cost.
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.
Please give us a message