Prepainted Galvanized Steel Coil(Ppgi)-3

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.