What Is PPGI

PPGI is pre-painted galvanized 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, 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 starting.

Pattern Printed Coil


PPGI Features

The surface of the ppgi has a unique smooth, flat, and gorgeous star flower, and the base color is silver-white. The special coating structure gives it excellent corrosion resistance. The normal service life of galvanized sheet can reach 25 years. It has good heat resistance and can be used in high temperature environments of 315°C. The coating has good adhesion to the paint film and has good processing performance, and can be stamped, sheared, welded, etc.; Surface conductivity is very good.

PPGI Sheet

PPGI Steel Sheet


PPGI Coil Coil Parameters
Galvanized Steel
DX51/52/53/54D+Z, S280GD+Z, S350GD+Z, S550GD+Z, SECC, etc.
0.13 mm-1.5 mm
600 mm-1,250 mm
Coil Weight
3-6 tons (can be customized)
Painting Types
Painting Thickness
Top: 10-35 μm Back: 5-14 μm
Zinc Coating Thickness
30-275 g/㎡
As per RAL color (custom patterns are available)
Φ508 mm/Φ610 mm
Standard export package or as per your requirements

Wanzhi PPGI

Wanzhi Steel is a wholesale PPGI steel supplier in China, which has its own factory. At our factory, we have 3 color coating lines, with an annual production capacity of 320,000 tons. There are also two galvanizing lines with an annual production capacity of 350,000 tons. Besides, there are sets of rolling equipment with different designs, shearing lines, etc. to meet different needs for plain or corrugated pre-painted galvanized steel sheets. Welcome to contact us to visit our factory online or on-site.

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