Wuhan Hanke Color Metal Sheet Co., Ltd.
WUHAN HANKE COLOR METAL SHEET CO., LTD. Good base zinc, good surface color, and every layer has its value.
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Cobalt Blue Prepainted Galvalume Steel Coil 55% RAL Colors AZ
1. Description
The hot-dip alu-zinc base metal adopts the hot-dip zinc-aluminum coated steel sheet (55% Al-Zn) as its prepainted base metal.
Among all the ingredients of coil coatings, resin and pigment have the function of duration, and the primers commonly used consist of polyester, silicon modified polyester, polyvinylidene fluoride, high durability polyurethant, etc. The most popular one we used is polyester.
Top coating: Polyester
The finish coat of this kind has strong adhesive force, a varity of colors, wide scope of properities in formation and durability outdoors, moderate chemical resistance and low cost.
The category of the primer includes epoxy, polyester, acrylic acid, polyurethane, etc. In general, the primer is chosen in accorance with the usage, enviroment condition, processing stage and finish coat. The film thickness of the primer is usually 5~7μ.The most primer we used is epoxy. The epoxy primer has a strong properties in waterproof, alkali-prrof and chemical resistance, which is the original primer for the coils steel.
2. Category & Coding of Prepainted Steel Sheet
| Classification | Item | Code |
| Applications | Construction external use | JW |
| Construction internal use | JN | |
| Steel windows | GC | |
| Household appliance | JD | |
| Furniture | JJ | |
| Others | QT | |
| Surface Finish | Normal coated | TC |
| Embossed | YA | |
| Printed | YI | |
| Types of top coatings | PE | PE |
| Silicon moodified polyester | SMP | |
| High-durability polyester | HDP | |
| Polyvinylidene fluoride | PVDF | |
| Base Metal | Electro-galvanized base metal | ZE |
| Hot-dip zinc coated base metal | Z | |
| Hot-dip Al-Zn steel sheet | AZ | |
| Coating surface structure of ot dip galvanized substrate | Small Spangle | X |
| Zero Spangle | M | |
| Pretreatment types for substrate surface | Normal chemical pretreatment | C |
| Chrome free chemical pretreatment | C5 | |
| Coating type | Top side two coats, bottom side one coatings | 2/1 |
| Top side two coatings, bottom side two coatings | 2/2 | |
| Top side two coatings, bottom side two coatings | 2/1M |
3. Specification
| STANDARD | JISG3312/ASTM A755M /GBT12754/EN10142 |
| THICKNESS | 0.20~1.50MM |
| WIDTH | 1250MM MAX. |
| ZINC | Z180 MAX. |
| PAINT | 15~20 MICRONS ON TOP SIDE, 5~7 MICRONS ON BACK SIDE |
| PAINT LAYER | PRIMER+PAINT/PRIMER OR PRIMER+PAINT |
| PAINT TYPE | RMP, SMP, HDP, PVDF |
| PAINT BRAND | KCC, AKZO NOBEL,TWIN TIGERS, NIPPON |
| PROTECTION FILM | AVAILABLE |
| PACKAGING | FACTORY STANDARD EXPORT PACKING |
| COIL ID | 508MM OR 610MM |
| COLOR | RED,BLUE,IVORY,GREY, RAL9002,RAL9003, ETC. |
| COIL WEIGHT | 12MT MAX. |
4. Quality Assurance
HANKE has already passed the authentification by the ISO9001, ISO14001 and KS D 3520 in succession and established a completed set of quality assurance system, and under this system, there has a complete set of regulations for ordering, order handling, quality design, purchasing raw materials, working production schedule, production, test, inspection, packaging, storage, delivering, etc.
5. Our service:
1) Free sample offered;
2) Flexible payment term with L/C at sight,TT ,ect;
3) Big quantity supply and short delivery time;
4) Stable and reliable quality
5) Long term after-sale service.