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PPGL Prepainted Galvalume Steel Coil Manufacturer

Sep 22, 2025

PPGL Prepainted Galvalume Steel Coil

 

Prepainted Galvalume Steel Coil for Roofing Contractors – Super High Durable Polyester available.

Prepainted Galvalume Steel Coil(PPGL) is a type of steel product that has been coated with a layer of aluminum-zinc alloy (Galvalume) and then pre-painted with a layer of protective paint.

PPGL Coil uses DX51D+AZ, q195, and galvalume steel sheet as the substrate, PE coating is our most commonly produced, it can be used for up to 10 years. We can also customize the color of the PPGL steel coil, such as wood grain, or matt.

The Galvalume coating typically consists of 55% aluminum, 43.4% zinc, and 1.6% silicon, which offers superior protection compared to traditional galvanized steel.

 

Material DX51D+AZ,
S220GD +AZ,
S250GD +AZ,
S280GD +AZ,
S320GD +AZ,
S350GD +AZ,
S550GD +AZ
Thickness 0.13-0.8 mm
Width 600-1250 mm
Paint Thickness Primer:
PU or Epoxy 5µm

Topcoat:
15~30µm

Back Primer:
PU or Epoxy 2µm

Back Coat:
PE or Epoxy 5~20µm
Types of Paint Available PE, SMP, HDP, PVDF
Coil ID 508/610mm
Coil weight 3-8tons

PPGL Prepainted Galvalume Steel Coil

 

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