Product Category

Pre-Painted Galvanized Steel Coil(PPGI)

Production Name: Pre- Painted Galvanized Steel Coil(PPGI)

Standard: AISI, ASTM, BS, DIN, GB, JIS, AS ETC

Thickness: 0.12-2mm

Width: 600-1500mm

Coil Weight: 3-5 Tons

Coil ID: 508 / 610MM

Zinc Coating: Z30-275g/m²

MOQ: 20 Tons

Package: Standard Sea Worthy Package

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PPGI is pre-painted galvanised iron, also known as pre-coated steel, coil coated steel, color coated steel etc., typically with a hot dip zinc coated steel substrate.

The term is an extension of GI which is a traditional abbreviation for Galvanized Iron.

Today the term GI typically refers to essentially pure zinc (>99%) continuously hot dip coated steel, as opposed to batch dip processes. PPGI refers to factory pre-painted zinc coated steel, where the steel is painted before forming, as opposed to post painting which occurs after forming.

The hot dip metallic coating process is also used to manufacture steel sheet and coil with coatings of aluminium, or alloy coatings of zinc/aluminium, zinc/iron and zinc/aluminium/magnesium which may also be factory pre-painted. While GI may sometimes be used as a collective term for various hot dip metallic coated steels, it more precisely refers only to zinc coated steel. Similarly, PPGI may sometimes be used as a general term for a range of metallic coated steels that have been pre-painted, but more often refers more precisely to pre-painted zinc coated steel.

Zinc coated steel substrate for PPGI is typically produced on a continuous galvanizing line (CGL). The CGL may include a painting section after the hot dip galvanized section, or more commonly the metallic coated substrate in coil form is processed on a separate continuous paint line (CPL). Metallic coated steel is cleaned, pre-treated, applied with various layers of organic coatings which can be paints, vinyl dispersions, or laminates. The continuous process used to apply these coatings is often referred to as Coil Coating.

Manufacture process:

It is a prepainted, prefinished and ready for further processing into finished products or components to use material.

About Us

Nantong Gaoya Steel Structure Co., Ltd.

Nantong Gaoya Steel Structure Co., Ltd. founded in 2004, is a professional China Pre-Painted Galvanized Steel Coil(PPGI) Manufacturers and Pre-Painted Galvanized Steel Coil(PPGI) Company, And it's always dedicating to providing quality products and efficient services for customers from all over the world.
Since the establishment, Gaoya adhering to the "quality to create value, good faith to lay the foundation,diligence to win success, innovation to seek development" business philosophy, adhere to the "social development as its mission, centennial enterprise people-oriented" purpose, with the sophisticated manufacturing technology, professional team, strict quality system to make Gaoya bigger and stronger.
It's continuously rated as AAA bank credit enterprise and it's also the member of China Engineering Construction Supervision & Management Association. What's more, it has been awarded ISO 9001 and OHSAS18001 certificate. Up to now, it's equipped with multiple advanced light & heavy production lines. It can provide complete materials with steel frame, steel sheet, sandwich panels for walls and roof, doors, windows and other related construction materials.
We specialize in custom Pre-Painted Galvanized Steel Coil(PPGI) export sales, Not only in the domestic market, its products have been exported to Australia, New Zealand, Chile, Guyana, America, Mexico, Jamaica, Germany, Georgia, Israel, Oman, Pakistan, Nepal, Bangladesh, Vietnam, Philippines, Indonesia, Mongolia, Algeria, Egypt, Ethiopia, Cameroon, Angola and so on. If you are looking for a reliable steel structure manufacturer and material supplier for your project, pls contact us.

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Pre-Painted Galvanized Steel Coil(PPGI) Industry knowledge

Why Is Pre-Painted Galvanized Steel Coil (PPGI) a Popular Choice for Outdoor Structures?

Pre-Painted Galvanized Steel Coil (PPGI) has become a go-to material for outdoor structures due to its combination of durability, aesthetic appeal, and resistance to environmental factors. Whether used in roofing, fencing, cladding, or other exterior applications, PPGI offers superior performance in both residential and industrial construction.
One of the main reasons PPGI is so popular for outdoor structures is its exceptional ability to resist corrosion. The material’s galvanized steel base is coated with a layer of zinc, which provides a protective barrier against rust and weathering. This galvanization process, combined with the pre-applied paint coating, helps to ensure that the steel remains resistant to the harsh effects of rain, snow, UV radiation, and humidity. As a result, structures made from PPGI require less maintenance over time compared to other materials, making it a cost-effective choice for outdoor applications.
The pre-painted surface of PPGI not only offers enhanced protection against corrosion but also contributes to the material's aesthetic appeal. Available in a wide range of colors and finishes, PPGI allows for greater design flexibility and the ability to match the surrounding environment or building style. This makes it ideal for both functional and decorative uses in outdoor environments. Whether it's for a modern commercial building, a durable warehouse, or a stylish garden structure, PPGI can be used to achieve both practicality and visual appeal.
PPGI is also lightweight yet strong, providing an excellent balance between ease of handling and structural integrity. The material’s strength-to-weight ratio allows for easier installation, reducing labor and transportation costs. Despite its lighter weight, PPGI maintains high load-bearing capacity, ensuring the stability of outdoor structures, especially in areas where weather conditions can be extreme. This makes it an optimal choice for applications in construction, fencing, and roofing, among others.
Another key advantage of PPGI is its environmental resilience. The material's ability to withstand temperature fluctuations, exposure to UV rays, and moisture makes it particularly suitable for outdoor applications. Additionally, PPGI is manufactured with eco-friendly coatings, ensuring that it remains a sustainable option for environmentally-conscious projects.
At Nantong Gaoya Steel Structure Co., Ltd., we specialize in providing high-quality Pre-Painted Galvanized Steel Coils (PPGI) that meet the standards of AISI, ASTM, BS, DIN, GB, JIS, and more. Our extensive experience in the industry and advanced production lines allow us to deliver products that align with global construction needs. With a focus on superior craftsmanship and efficient service, we continue to support businesses around the world by offering PPGI products that enhance the longevity, functionality, and aesthetics of outdoor structures.

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