1. Prepainted aluzinc steel coil introduction
It is typically with a hot dip aluzinc coated steel substrate. Prepainted aluzinc steel coil is
used galvanized steel or the galvalume steel as the base materials, after surface pretreatment,
such as chemical degreasing and conversion treatment, next passed to be painted and baked,
then we get the final products
2. Prepainted aluzinc steel coil quality control
Strict procurement process---skillful technical workers---final products inspection(resistance
to corrosion,salt spray test, exposure test, machinability, thermal resistance)---standard packing
3. Prepainted aluzinc steel coil main usage
It is often used as building materials(ceiling, metal roof tile) machinery parts(electrically controlled
cabinets, road maintain board, etc, so galvalume color coated coil is mainly used in advertising
industry, construction, household appliances industry, electrical industry, furniture industry and
transportation
4. Prepainted aluzinc steel coil process
Pay off reel-double cut shear-jonter-pre cleaning section-dryer-entry accumulation-cleaning
section-chemical coater-chemical oven-primer coater-prime oven-prime coater cooling unit-dryer
-finish coater-finish oven-finish coater cooling unit-dryer-tension leveler-exit accumulator-exit shear
-tension reel
5. Prepainted aluzinc steel coil features
1) Excellent corrosion resistance: The zinc layer provides a good protection of steel sheet
2) High heat resistance: Reflective surface of the material aids in efficiently reflecting the sunlight
away and in turn reducing the amount of heat transmitted
3) Aesthetics: Available in plethora of patterns and multiple sizes that given by customers
4) Versatility: can be used in the various areas
Base Material |
Hot dip galvanized steel sheet(HDG) |
| Hot dip AL-ZINC coated steel sheet(55% AL-ZN) |
| Zinc-iron-alloy steel sheet( ZF) |
| /Coating mass |
Zinc:60-275gm2 AL-ZN:60-220gm2 |
| /Thickness |
0.13-0.8mm |
| /Tolerance of thickness |
-0.03-+0.01mm |
| /Width |
600-1250mm |
| /ID |
610mm,508mm |
| /Quality Standard |
EN10142,EN10326,EN10169,JIS3302,ASTMA755M,GB/T12754 |
| /Steel Grades |
DX51D,DX52D,DX53D,S220GD,S250GD,SGCC |
| /Type of coating |
PE,PVDF,HDP,SMP |
/Coating structure
(Top surface/bottom surface) |
2/2 (Double coated/ double coated) |
| 2/1 ( Double coated/ single coated) |
| (Top Paint Layer) |
20-25μm |
| (Back Paint Layer) |
7-12μm |
| / Glossiness |
35-65 ±5° |
| / Weight of coil |
2-5 ton |
| / Package Method |
(Vertical packing) ( Horizontal packing) |
Audited Supplier 
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