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The color coated steel sheet is a product obtained by subjecting a hot-dipped galvanized steel sheet, and galvalume steel sheet, or an aluminum sheet to a surface chemical treatment (coating), followed by baking and curing.
The total thickness of the pre-panted galvanized steel coil is composed of the base steel – coating -primer – top paint – protective layer thickness. The top paint thickness is 10-25μm, and the back paint thickness is 5-20μm. The thinner the base steel thickness, the higher the price of the ppgi steel sheets, because the processing cost becomes higher.
Usually, the paint coating material is polyester (PE) and the color of the back paint is white grey. The color can be customized according to the RAL color card or customer samples. Special patterns can be made, such as wood grain, flower print, camouflage, brick.
PPGI is also known as prepainted galvanized steel coil and color coated steel coil, with a hot dip zinc coated steel sheet substrate. PPGL is also known as prepainted galvalume steel coil, with a galvalume steel sheet as a substrate.
PPGI Sheet Coating Layer | |
Top (Finish) Coating (PE/HDP/PVDF, etc.) |
|
Primer Coating | |
Pre Treatment (Chromate Coating) | |
Plating Layer (Zn, AL, 55%AL+Zn) | |
Base Metal (Cold Rolled Steel Sheet) | |
Plating Layer (Zn, AL, 55%AL+Zn, Sn, Cr, etc.) | |
Pre Treatment (Chromate Coating) | |
Functional Painting (Epoxy, Polyester ) | |
Type | Color Coated Steel Sheets |
Technique | Color coated |
Thickness | 0.12mm-1.5mm |
Thickness tolerance | +/- 0.002mm |
Width | 700mm-1250mm (Regular width: 1,000 or 1,200mm) |
Width tolerance | +/-2mm |
Zinc & Aluminum-Zinc coating | Z40-Z275M2 AZ30~AZ100 M2 |
Zinc tolerance | Zinc coating:+/-5% |
Surface treatment: | Mini/Regular/big/zero spangle, Chriomate treatment/ |
Chromate-free treatment/ untreated unoile / oiled. | |
Tension levellert Skin pass / Anti-fingerprint/ UnAnti-fingerprint | |
Paints | Paint coating type Polyester (PE)--- Universal good adhesion and flexbility |
High-dbilityura Polyester (HDP)--- Excellent UV resistance, High durability | |
Silicon Modified Polyesters (SMP)--- Wear and good heatresistance external | |
durability,Non-powder resistance | |
Polyvinylidene Fluoride (PVDF) --- Excellent flexibility and durability | |
Painting | Top:20+/-5um Back:5mic---7mic |
Color | Color according to RAL standard (including 210 colors) or Different Patterns |
(including 3D Wood imitation, arble, Hairline, Brick, Camouflage series, Cloth, | |
Flowers and Plants, etc). | |
Standard | JISG3302-2005, JIS G3313, JIS G3321, JIS G3317, GB/T2518-2004 , |
GB11253-89, GB/T 12754 - 2006 ,ASTM A1008-2000, ASTM A653-2001, | |
ASTM A 792 EN10169 DIN10142-91,DIN1012--92, EN10327,ETC, | |
Material | SGCC,SGCD,SECC,SECD,CGCC,CGCH,CGLCC, SPCC,DX51D,DX52D, |
DX53D, S350GD, S450GD, S550GD ,TDC51D,TDC53D CGC400, | |
TS350GD CGC440,TS550GD CGC570 | |
Lifespan: | 10-15 years, very strong corrosion resistance |
Tensile Strength: | >300mpa |
Yield Strength: | 370-380mpa 230-310Mpa/220-300Mpa/170-240Mpa |
Package: | Waterproof paper+plastic film+iron packing+bundling,or as per |
customers request. | |
Application | Corrugated roof , Wave wall , ceilling, shutter door , fence , |
cold room out side steel and ect. |
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