样本:点击下载
Prepainted Galvalume steel Coil Manufacture
Prepainted galvalume steel Coil(PPGL) Also known as color coated steel coil, is a type of sheet made of steel coil as the substrate, coated or laminated with various organic coatings or plastic films on the surface. Common substrates include cold-rolled sheets, galvanized sheets, galvalume sheets, high aluminum alloy sheets, and stainless steel sheets.
Surface pretreatment: Chemical degreasing and chemical conversion treatment are applied to the substrate to enhance the adhesion of the coating.
Application of organic coating: Apply one or more layers of organic coating on the surface of the substrate.
Baking curing: Bake the coated board to cure the coating.
Provide a full range of color options, or produce according to samples
Is that all? No! We have more varieties
PPGL Steel Coil Surface Include The Following Types
![]() |
Smooth(Bright): The surface is smooth and has a mirror effect, presenting a bright luster. |
![]() |
Matte(Smooth): The surface does not have a significant mirror effect, presenting a soft luster. |
![]() |
Matte(Wrinkled): The surface is treated with a matte finish, giving it a rough texture and presenting a delicate sugar like effect. |
![]() |
Pattern: The surface is embossed to present various patterns and textures, commonly including mesh, wood grain, stone grain, etc. |
Please choose your favorite color and type according to your needs.
Front:double coated & double drying
Back:double coated & double drying,single-coated & double drying
Top paint:PVDF,HDP,SMP,PE,PU
Primer paint:Polyurethane,Epoxy,PE
Back paint:epoxy.modified polyester
Name
Prepainted galvalume steel coil(PPGL Steel Coil)
Thickness
0.12-2.0mm
Width
600-1250mm
Zinc Coating
20-275g/m2
Front Painting
10-35 microns or Customized
Back Painting
5-25 microns or Customized
Coating Process
Coating types
Grade
CGCC,CGCH,DX52D,DX53D,G550,DX51D
Test Report
Provided
3.Good decorative properties: The surface can be coated with various colors of paint, suitable for different decorative needs.
Base Metal (Galvalume Steel): The core of the coil is galvalume steel, which is steel coated with a layer of aluzinc to provide corrosion resistance.
Chemical Treatment Layer: This layer is applied to the galvalume steel to improve adhesion of the subsequent coatings and to enhance corrosion resistance.
Primer Coating: A primer coating is applied on top of the chemical treatment layer. This layer further enhances adhesion and provides an additional barrier against corrosion.
Topcoat (Finish Coat): The topcoat is a colored paint layer that provides both aesthetic appeal and additional protection.
Back Coat (Optional): On the underside of the coil, a back coat may be applied.
![]() |
Width Test Check whether the width of the steel coil is consistent with the contract agreement, with an error not exceeding 1% |
![]() |
Thickness Test Using sampling methods and machine detection of thickness for more accurate data |
![]() |
Paint film thickness test Use the eight point test method to measure the thickness of the front and back paint film |
![]() |
Impact resistance test Take samples of the color coated board and conduct impact testing to check for any peeling of the paint film |