Prepainted Galvanized Steel Coil(Ppgi)-5-Qingdao Century Lucky Group Co., Ltd.

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Steel Export

Prepainted Galvanized Steel Coil(Ppgi)-5

Standard AISI,ASTM,GB,JIS Material SGCC,SGCH,G550,DX51D,DX52D,DX53D
Thickness 0.14—0.45mm Length 16-1250mm
Width before corrugation:1000mm; after corrugation:915、910、905、900、880、875
before corrugation:914mm; after corrugation:815、810、790、780
before corrugation:762mm; after corrugation:680、670、660、655、650
Color Top side is made according to RAL color, Back side is white grey in normal
Tolerance "+/-0.02mm Zinc coating 60-275g/m2
Certification ISO 9001-2008,SGS,CE,BV MOQ 25 TONS (in one 20ft FCL)
Delivery 15-20 days Monthly Output 10000 tons
Package seaworthy package
Surface treatment: unoil,dry,chromate passivated, non-chromate passivated
Spangle regular spangle,minimal spangle, zero spangle,big spangle
Payment 30%T/T in advanced+70% balanced;irrevocable L/C at sight
Remarks nsurance is all risks and accept the third party test
 
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 0.16-1.2mm Width 600-1250mm
Coil Weight 3-9Tons Inside Diameter 508mm Or 610mm
Zinc Coating Z50-Z275G Painting Top: 15 to 25 um (5 um + 12-20 um) back: 7 +/- 2 um
Coating introduction Top paint: PVDF, HDP, SMP, PE, PU
Prime paint: Polyurethane, Epoxy, PE
Back paint: Epoxy, Modified polyester
Productivity 150,000Tons/year
Production core strengths
Resistance to acid rain:
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.
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