High Grade Construction Prepainted Galvalume Steel
WanJuan Steel supplies a variety of prepainted steel sheet and coil products to meet customer needs. Our value-added service capabilities include slitting, shearing, stretcher leveling, blanking and metallurgical support.
Product Information
|
Standard
|
JIS G3322 CGLCC ASTM A755 CS-B
|
Surface coating color
|
RAL colors
|
|
Back side coatingcolor
|
Light grey ,white and so on
|
Package
|
export standard package or as request
|
|
Type of coating process
|
Front: double coated&double drying. Back: double coated&double drying, single-coated&double drying
|
|
Type of substrate
|
hot dipped galvanzied, galvalume, zinc alloy, cold rolled steel, aluminum
|
|
Thickness
|
0.11-2.5mm
|
Width
|
600-1250mm
|
|
Coil Weight
|
3-9Tons
|
Inside Diameter
|
508/610mm
|
|
Zinc Coating
|
Z50-275g/㎡
AZ30-150g/㎡
|
Painting Coating Thickness
|
Top: 8-35 um
Back: 3-25 um
|
|
Painting Color Style
|
2/1,2/2
|
Length
|
As,require
|
|
Coating introduction
|
Top paint: PVDF, HDP, SMP, PE, PU
|
|
Prime paint: Polyurethane, Epoxy, PE
|
|
Back paint: Epoxy, Modified polyester
|
Production core strengths
Coating protection mechanism: It is very easy to form acid rain in the high level of industrial emissions or pollutants environment. Acidic penetration is formed in the surface of pre-painted steel, and accelerates the corrosion, forming blistering, peeling and so on.
-
Resistance ultraviolet rays:
Coating protecting Mechanism: pre-painted sheet in ultraviolet or strong sunlight conditions, the coating will exhibit chalking degeneration, manifested as discoloration and loss of gloss, lose paint quickly.
-
Resistance to humid heat:
Coating protecting mechanism: in hot and humid environments, high osmotic pressure of water vapor accelerates penetration, forming the degeneration of painting film, then the corrosion of the substrate, with the phenomenon of bubbles and peeling.
-
Resistance to low temperature:
Coating protecting mechanisms: most of the paint can keep stable processing performance above 0 degree, but at alpine region, the temperature will be below 20-40 degree, normal paint will become brittle，bend cracking, or even lose paint, thus protection function is lost totally.
