Gnee Steel (tianjin) Co., Ltd
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Standard Colors of PPGL Prepainted Galvalume Steel Coil

Sep 22, 2025

PPGL Prepainted Galvalume Steel Coil

 

PPGL stands for Pre-Painted Galvalume Steel. The key difference lies in the Galvalume substrate (aluminum-zinc alloy steel). The Galvalume coating is composed of 55% aluminum, 43.4% zinc, and a small amount of silicon. Compared to pure galvanized steel, it offers greater weather resistance and high-temperature oxidation resistance, making it suitable for highly corrosive environments or high-end architectural applications.

 

The substrate is an annealed cold-rolled steel coil.

Chromated paint is used for cleaning the surface of the cold-rolled coil.

After Chromated, the next is zinc coated. The coil becomes a galvalume steel coil now.

After zinc coated, the next is Chromated again, for cleaning the galvalume steel coil surface again.

The primer coating is used for increasing the adhesion of the top coating. When cold roll forms, the paint will not fall off.

The top paint coating metal is PE or PVDF.

 

PPGL Prepainted Galvalume Steel Coil

 

GNEE STEEL can customize the color according to your sample, the following colors are just examples.

 

PPGL Prepainted Galvalume Steel Coil

 

  • Matt Colors

 

PPGL Prepainted Galvalume Steel Coil

 

Pre-Painted Galvanized Steel

 

Technical Standard

EN10147/EN10142/DIN 17162/JIS G3302/ASTM A653

Steel Grade

Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490,
SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC340 , SGC490, SGC570; SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), SQ
CR80(550), CQ, FS, DDS, EDDS, SQ CR33 (230), SQ CR37 (255), SQCR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer's Requirement

Type

Coil/Sheet/Plate/Strip

Thicness

0.126.0mm or customer's requirement

Width

6001500mm according to customer's requirement

Type of Coating

Hot Dipped Galvanized Steel(HDGI)

Zinc Coating

AZ30-AZ160, Z50-Z140g/m2

Surface Treatment

Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U)

Surface Structure

Normal spangle coating(NS), minimized spangle coating(MS), spangle-free(FS)

Paint Top (microns)

15-35 microns

Paint Back(microns)

5-10 microns

Coil Weight

3-20 metric ton per coil

Package

Water proof paper is inner packing,galvanized steel or coated steel sheet is outer packing , side guard plate,then wrapped by
seven steel belt.or according to customer's requirement

Export market

Europe, Africa, Central Asia, Southeast Asia, Middle East, South America, North America, etc

 

PPGL Prepainted Galvalume Steel Coil