What Is PPGI Steel?
PPGI steel is short for pre-painted galvanized steel. As the name implies, it uses hot-dip galvanized steel as a substrate. Then the galvanized steel is cleaned and pre-treated first to remove the oil and dust on the surface. After that, the prepared base metal is painted with layers of organic coatings, such as PE, SMP, HDP, PVDF, etc. GNEE Steel offers paints from different brands, such as Nippon paint, AkzoNobel paint, etc. This continuous painting process is known as the coil coating process, resulting in a multi-layered structure of PPGI steel. The layers include the base metal, zinc coating layer, pre-treatment (chemical conversion coating) layer, primer coating, and top/back coating.
- Popular Colors of PPGI Steel
According to our experience, RAL5015 (sky blue), RAL6005 (moss green), RAL9003 (signal white), RAL 3020 (traffic red), etc. You can also choose other colors according to the RAL color card. Moreover, GNEE Steel is able to customize various patterns, such as wood grain metal, grass, flowers, brick, camouflage patterns, feather-like patterns, etc. Welcome to contact us for more details!

PPGI steel is a beautiful and long-lasting material, which is widely applied in buildings, household appliances, furniture, and other areas. GNEE Steel is a top manufacturer and supplier of metal coil and sheet products. We boast three state-of-the-art coil coating lines that can produce up to 320,000 tons annually. Additionally, we have a range of equipment for slitting, shearing, cutting, profiling, and more. Our PPGI steel products come in various colors, sizes, and finishes. Please feel free to contact us for more information.
| Item | PPGI Steel (pre-painted galvanized steel) |
| Substrate | Galvanized steel |
| Grades | DX51D+Z, DX52/53/54D+Z, S280GD+Z, S350GD+Z, S550GD+Z, SECC, etc. |
| Thickness | 0.13 mm-1.5 mm (stock thickness: 0.35/0.4/0.45/0.5/0.6/0.8mm) |
| Width | 600 mm-1,250 mm (stock width: 1000/12oomm) |
| Paint Types | PE, SMP, HDP, PVDF |
| Paint Thickness | Top: 10-35 μm Back: 5-14 μm |
| Colors | As per RAL Color (custom patterns are available) |
| Annually Production | 320,000 tons |
| Value-added Services | Custom sample, slitting, cutting, stamping, bending, profiling, and other |
| Package | Standard Export Package |






