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What is Pre-Painted Galvanized Iron (PPGI) and how to buy Pre-Painted Galvanized Iron (PPGI)

What is Pre-Painted Galvanized Iron (PPGI)?

pre painted galvanized iron steel coil

Pre-Painted Galvanized Iron (PPGI) is an industrial steel product with multiple uses. It is a form of galvanized iron (GI) that is also dipped into zinc. However, the zinc coat is pre-painted in the factory instead of waiting until after the steel is formed. Applying a zinc coat prevents rusting. PPGI is also known as metallic coated steels, or pre-coated steel. This product will typically come in the form of a coil. This steel is often not costly and can last for a long period of time.

What is PPGI used for?

galvanized iron steel coil applications

Pre-painted galvanized iron has multiple uses. The most popular uses of this product include applications such as:

  • Refrigeration and freezer
  • Washing machines
  • Air conditioners
  • Solar heaters
  • Roofing
  • Walling
  • LED TV
  • Microwave ovens
  • DVD player set top box
  • Furniture
  • Containers
  • Electrical cabinets
  • Door and window hoods

This product provides much use in industries such as

  • Agriculture
  • Construction
  • Automotive
  • Home Appliances
  • Wind and solar
  • Much more!

What are the Benefits of Pre-Painted Galvanized Iron?

pre painted galvanized iron at Camasteel

There are many benefits to purchasing pre-painted galvanized iron for your project, including:

Life Span

It is durable and has the strength to last over 50 years. When placed outside, with various weather conditions, it may decrease the life of the product, but even with much exposure to water and the different climates, it will still last over 20 years.

Cost Effective

There is a low cost to this product because there is not an additional task or preparation of the product after the steel is formed; it is ready to use upon delivery.


The product is pre painted with a zinc coating that protects the base from rusting and corrosion. It is unlikely for the steel to experience damage for a while after installation.


PPGI is flexible steel used for many applications in many industries.

How to Manufacture Pre-Painted Galvanized Iron?

PPGI color coil manufacturing

The process of manufacturing PPGI involves multiple steps, first going through pre-cleaning and enters the accumulator including processes of

  1. Degreasing
  2. Brushing
  3. Washing and drying
  4. Chemical coating
  5. Refined coating and primer

After a coat of prime, the sheet gets painted. Then leaves the accumulator and enters quality controlling and finishing the coil including processes of

  1. Cooling
  2. Cutting
  3. Coiling

The typical thickness of a PPGI sheet can range from about 0.125 mm to 4.0 mm. At Camasteel, you can buy PPGI ranging from a thickness of 0.12 mm to 2.0 mm and a width ranging from 600 mm to 1250 mm. Camasteel offers great flexibility in the dimensions and specifications of their PPGI order.

Which Countries Manufacture PPGI?

PPGI production line

The main producers of Pre-Painted Galvanized Iron are

  • China
  • Russia
  • Ukraine
  • India
  • South Korea
  • Vietnam

Consumption of PPGI has increased dramatically across the world, especially in developing countries. These countries have been able to create the capacity and expand their productions to produce larger quantities of steel. China is the largest steel producer and is the largest contributor to the production of PPGI.

How to transport PPGI Coil?

PPGI color coil storage

When storing the coil before transport, the steel's lifespan will decrease if left in certain weather conditions. These may include rain or large temperature differences. The PPGI coil is wound during transport and will hold the water and create damage.

Labels are always checked and confirmed to make sure the correct product is shipped. The product is loaded and unloaded by forklift and transported to its destination or a ship for export. It is tied down and secured to prevent damage.

Where to buy PPGI?

pre painted galvanized steel produced at Camasteel

You may be able to find pre-painted galvanized iron in small quantities in your area. But if you want to buy large quantities of PPGI, it is preferable to import directly from the manufacturers. They can issue certifications and provide cost savings which is better than buying the steel in small quantities locally or from a distributor.

If you require bulk quantities of this steel, you can buy PPGI on our website.

Here at Camasteel we have pre-painted galvanized iron for sale. We export worldwide, so you can contact us for a FREE quotation today via email [email protected] or send a message on WhatsApp for a fast response +86-131-2037-9271.

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