Applications and benefits of PPGI and PPGL Steel Coils

Summary: Pre-painted galvanized iron (PPGI) and pre-painted galvalume (PPGL) steel coils are integral materials in various indust...

Pre-painted galvanized iron (PPGI) and pre-painted galvalume (PPGL) steel coils are integral materials in various industrial applications due to their enhanced durability, corrosion resistance, and aesthetic appeal. These materials are extensively used in the construction, automotive, and appliance industries, among others. 

Applications of PPGI Steel Coils:


Roofing and Cladding: PPGI steel coils are widely used for roofing and wall cladding in residential, commercial, and industrial buildings. Their aesthetic versatility, available in various colors and finishes, makes them popular for enhancing the visual appeal of structures.
Architectural Panels: The lightweight nature and ease of installation make PPGI suitable for architectural panels and facades. They provide a durable and attractive solution for modern building designs.

Automotive Industry:

Body Panels and Components: PPGI is used in manufacturing automotive body panels and components due to its excellent formability and corrosion resistance. It helps in reducing the overall weight of vehicles, contributing to fuel efficiency.
Home Appliances:

Refrigerators, Washing Machines, and Ovens: PPGI is used in the outer shells and internal components of home appliances. The material's durability and aesthetic qualities make it ideal for appliances that require both functionality and a pleasing appearance.


Office and Home Furniture: PPGI is employed in the manufacturing of office and home furniture, such as cabinets and shelving units, due to its strength, durability, and aesthetic finish.

Benefits of PPGI Steel Coils:

Corrosion Resistance:

PPGI offers excellent corrosion resistance due to its zinc coating, protecting the underlying steel from rust and environmental damage.

Aesthetic Appeal:

Available in a wide range of colors and finishes, PPGI enhances the visual appeal of buildings, appliances, and furniture, allowing for customization and design flexibility.


PPGI is generally more affordable than PPGL, making it a cost-effective solution for various applications without compromising on performance.

Ease of Installation:

The lightweight nature of PPGI steel coils ensures easy handling and installation, reducing labor costs and time.

Applications of PPGL Steel Coils:


Coastal and Industrial Buildings: PPGL is preferred for roofing and cladding in coastal and industrial environments due to its superior corrosion resistance. It is highly effective in areas with high salinity and pollution.
Solar Reflective Roofing: The reflective properties of the aluminum in the coating make PPGL ideal for solar reflective roofing, contributing to energy efficiency by reducing cooling costs.

Industrial Applications:

Equipment and Machinery: PPGL is used in manufacturing industrial equipment and machinery that require high durability and resistance to harsh environmental conditions.
Agricultural Buildings: PPGL is suitable for agricultural buildings and structures, such as barns and silos, due to its resilience against moisture and corrosive materials.


Trailers and Containers: PPGL is used in the construction of trailers and shipping containers that need to withstand extreme weather conditions and constant exposure to the elements.

Benefits of PPGL Steel Coils:

Enhanced Corrosion Resistance:

The aluminum-zinc coating of PPGL offers superior corrosion resistance compared to PPGI, especially in harsh environments, ensuring longer service life.

Heat Reflectivity:

The aluminum in the PPGL coating provides excellent heat reflectivity, making it an ideal choice for energy-efficient building designs that aim to reduce cooling costs.


PPGL exhibits greater durability and longevity, withstanding extreme weather conditions and reducing maintenance needs over time.

Self-Healing Properties:

The aluminum in the PPGL coating provides self-healing properties, which means minor scratches can be naturally sealed, enhancing the material's durability and appearance.