0.4mm PPGI PPGL
A substrate thickness of 0.4 mm is one of the most common and best-selling specifications in the color-coated steel (PPGI and PPGL) market. It strikes an ideal balance between light weight, ease of processing, consistent strength, and affordability, making it the preferred choice for most construction, cladding, and home appliance finishing projects worldwide.
Ensure product quality and transportation
Due to differences in their base materials, 0.4mm-thick PPGI and PPGL vary in terms of corrosion resistance, suitable environments, and cost. When making your selection, please let us know the intended environment and application, and we will recommend the product best suited for your needs.
Many first-time buyers focus solely on surface color and price; however, in actual mass production and on-site installation, the advantage of 0.4mm material lies in the fact that it is neither too thin—which could lead to deformation—nor too thick—which would unnecessarily complicate processing.
Specifications
| Product Name | 0.40mm PPGI PPGL |
| Thickness | 0.40mm |
| Width | 600–1250mm |
| PPGI Substrate | GI / Galvanized Steel Coil |
| PPGL Substrate | GL / Galvalume Steel Coil |
| Substrate Grades | DX5ID, DX52D, DX53D, S250GD, S350GD, S550GD, SPCC, SGCC, A653, etc. |
| Structural Steel Grade | S280GD, S350GD, etc., can be recommended upon request. |
| Coating Weight | PPGI 30–275g/㎡ Zinc; PPGL 30–150g/㎡ Aluminized Zinc |
| Paint Coating System | PE, SMP, HDP, PVDF |
| Thickness Tolerance | ±0.02mm–±0.03mm (International Trade Standard) |
| Color | RAL Standard Color or Customer Sample Color |
| Surface Finish | Glossy, Matte, Wrinkle, Orange Peel Texture, etc. |
| Inner Diameter | Common 508mm/610mm |
| Product Types Available | Coil/Sheet(flat or corrugated)/Strip |
| Packaging | Standard Export Packaging |
| Processing Method | Uncoiling, Slitting, Shearing, Roll Forming |
| MOQ | 10 TONS |
0.4mm PPGI vs 0.4mm PPGL
Although both have the same 0.4mm substrate thickness and a similar appearance, their substrate properties and performance characteristics differ significantly, which directly determines their applicable areas and project grades.
| Products | 0.4mm PPGI Coil | 0.4mm PPGL Coil |
| Substrate | Galvanized steel coils | Aluminum-zinc coated steel coil |
| Coating | Z30–Z275g/㎡ | AZ30–AZ150g/㎡ |
| Main Advantages | This material is more affordable and easy to bend and corrugate. | Compared to pure zinc coating, aluminum-zinc coating offers superior oxidation resistance, heat resistance, and corrosion resistance. |
| Common Applications | A mainstream material for building roofing and wall cladding (Africa, South America) | Many high-standard permanent buildings and coastal projects prefer 0.4mm PPGL, even with slightly higher budgets. |
| Suitable Environments | Ideal for arid inland areas, general atmospheric environments, and projects with a short to medium lifespan. | Suitable for humid, coastal, high-salt-spray, and high-temperature environments. |
Benefits of Using 0.4mm Color-Coated Steel Coils
- Suitable for Roll Forming: 0.4mm steel coils are commonly processed into corrugated sheets, trapezoidal sheets, wall panels, and other architectural profiles. Formability also depends on the steel grade; DX51D is generally selected, while S350GD is chosen when load-bearing capacity is required.
- Maintains Good Flatness After Installation: Ultra-thin coils are prone to waviness and deformation due to wind and temperature fluctuations, whereas the 0.4mm thickness effectively resists mild wind pressure and thermal expansion and contraction, ensuring the sheet surface remains smooth and flat over the long term.
- Lightweight, facilitating transportation and installation: Compared to sheets with a thickness of 0.5 mm or greater, 0.4 mm coiled sheets reduce the overall structural load, lower transportation costs per square meter, and improve installation efficiency, making them ideal for large-scale building envelope projects.
What Products are 0.4mm PPGI and PPGL Suitable For?
- Roofing Panels: 0.4mm PPGI and PPGL are suitable for manufacturing color-coated roofing sheets used on building roofs in various environments (PPGI is suitable for dry climates, while PPGL is suitable for coastal areas).
- Wall Panels: For lightweight building walls, factory walls, and certain building envelope systems, 0.4mm is a common initial choice. If the wall surface requires better flatness and rigidity, 0.45mm or 0.5mm thicknesses can also be selected based on project requirements.
- Home Appliance Manufacturing: 0.4mm color-coated steel sheets are commonly used in the manufacture of various home appliances, such as refrigerator panels and side panels, washing machine side panels, air conditioner housings, and small appliance housings.
Why Choose Us?
- Strict Quality Control: We operate our own testing center, where we conduct tests on color-coated steel coil products—including thickness, coil weight, bending performance, stamping performance, and corrosion resistance—to ensure our products meet customer requirements.
- Extensive Experience: With over 15 years of production and export experience, we have successfully exported to more than 120 countries (including Lebanon, Iran, Indonesia, the Philippines, Russia, Tajikistan, Romania, Poland, Ecuador, and Chile).
- Comprehensive Certifications: We hold ISO 9001, ISO 14001, ISO 45001, CE, and SGS certifications. In particular, all our products have passed SGS certification; view the SGS reports.
We are a professional manufacturer of color-coated steel products and are committed to conducting business with integrity. If you have any questions about our color-coated steel products, please feel free to contact us at any time.
