Coating Thickness Selection
The front coating is larger than 20μm to prevent the intrusion of corrosive media. Due to the different anti-corrosion mechanisms of primer and finish coating, not only the total coating thickness should be guaranteed, but also the thickness of primer (>5μm) and finish coating (>15μm).PVDF color coated steel coil requires a thicker coating. It provides a longer service life. The requirements for the backside paint coating depend on the application, and the sandwich panel only requires a layer of primer. The formed steel plate requires two coats. The thickness is at least greater than 10 μm.
Coating Color Selection
The choice of coating color mainly considers the use of environment and market demand. The light color paint has a strong heat reflection ability, and the contrast between the coating and the original color is small, and the appearance is small. Dark colors will fade easily when exposed to ultraviolet light.
Zinc coating | Primer: 5-7 micronsTop: 10-25 micronsBack: 5-25 microns or as request |
Coil weight | Normally 3- 5 tons, or as your request |
Hardness | Softy, half hard and full hard quality |
Substrate | Cold rolled substrate |
Paint coating | PE,PVC,PVF,PVDF ect |
Coating layer | 2/1,2/2,3/3 painting & drying |
Glossy | high glossy,normal glossy,lower glossy |
Color | As Ral color or as sample |
Grade | Q195 Q235 Q345 |
SGCC SGCH SGC340 SGC400 SGC440 SGC490 SGC570 | |
SGHC SGH340 SGH400 SGH440 SGH490 SGH540 | |
DX51D DX52D DX53D DX54D DX55D DX56D DX57D | |
S220GD S250GD S280GD S320GD S350GD S400GD S500GD S550GD | |
SS230 SS250 SS275 SS340 SS550 | |
Package | Seaworthy package |
MOQ | 25 Tons (in one 20FT FCL) |
Payment | 30%T/T in advanced+70% balanced; Irrevocable L/C at sight |
Remarks | Insurance is all risks and accept the third party test |
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ppgi 0626 | ppgi coils manufacturer in china |
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