Structure of Cross-section
Items
|
Thickness
|
Type
|
Features
|
Protection Film
|
50μm
|
polyethylene
|
Protecting from scratches and contamination (Optional)
|
Finished Coat
|
10μm
|
PVDF
|
Protecting printed layer and enhances the appearance of the surfaces
|
Print
|
≦1μm
|
Ink, Polyester
|
Various printing patterns,3 colors overprint
|
Top Coat
|
20μm
|
Polyester Fluorine
|
Chemical resistance, formability and patterns multiformity
|
Primer Coat
|
5μm
|
Polyester
|
workability, corrosion resistance and adhesion to the primer coating
|
Chemical Treatment
|
≦1μm
|
Chromate
|
Good adhesion and corrosion resistance
|
Substrate
|
0.2-1.2mm
|
GI.GL.AL
|
GI.GL,AL
|
Chemical Treatment
|
≦1μm
|
Chromate
|
Good adhesion and corrosion resistance
|
Back Coat
|
5μm
|
Epoxy
|
corrosion resistance and adhesion to the substrate
|
|