1250mm width roofing Pre-Painted Galvalume steel coil /sheet PPGL Steel coil DX51D
Details of PPGL steel coil :
The prepainted steel sheet in coil 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 coil, 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.
1) PPGI is also known as prepainted galvanized steel coil and color coated steel coil, with a hot dip zinc coated steel sheet substrate.
2) PPGL is also known as prepainted galvalume steel coil, with a galvalume steel sheet as a substrate.
Mechanical Properties Of The Substrate
Mechanical properties of PPGI(pre-painted galvanized) steel coil substrate.
| Grade | Yield Strength a,b MPa | tensile strength MPa | Elongation after breakingc A 80mm % not less than | r 90 not less than | n 90 not less than |
| DC51D+Z | - | 270～500 | 22 | - | - |
| DC52D+Z | 140～300 | 270～420 | 26 | - | - |
| DC53D+Z | 140～260 | 270～380 | 30 | - | - |
| DC54D+Z | 120～220 | 260～350 | 36 | 1.6 | 0.18 |
Substrate Selection
The substrate of the prepainted steel coil has a cold-rolled substrate, hot-dipping galvanized substrate and, aluzinc substrate.
Cold-Rolled Steel Substrate
prepainted steel sheets produced from cold-rolled substrates have the processing properties of cold-rolled sheets.
If the coating is scratched, the cold-rolled substrate will be directly exposed and will quickly rust. It can only be used for temporary barriers that are not demanding. It has the lowest price and is not recommended for civil buildings.
Hot-Dipping Galvanized Steel Substrate
In addition to the protective effect of zinc, the prepainted galvanized steel sheet also has coating protection, and the service life is longer than that of the hot-dipping galvanized steel sheet.
Hot-Dipping Galvalume Steel Substrate
Hot-dipping galvalume steel (55% AI-Zn) is used as the prepainted galvalume steel coil substrate.
The corrosion resistance of hot-dipping galvalume steel sheets is 2 to 5 times that of hot-dipping galvanized steel sheets.
PPGL STEEL COIL PARAMENTERS
| Product name | Prepainted Galvanized Steel Coil / Sheet |
| Material | DX51D |
| Zinc | 20-275g |
| Thickness | 0.13-2.0 mm |
| Width | 600-1500 mm |
| Color | all RAL color , as client’s request |
| Paint | top paint : 10-30mic back paint: 5-25 mic |
| Paints | PE, SMP, HDP, PVDF |
| T bend | |
| Pencil hardness | >2H |
| Coil ID | 508/610mm |
| Coil weight | 3-8tons |
| Surface | glossy and matt |
| Glossy | 30%-90% |
| Package | standard export package (Detailed picture is as follows) |
| Hardness | soft (normal), hard, full hard(G300-G550) |
| HS code | 721070 |
| Country of origin | China |
| Business type | Supplier and manufacturer |
| Brand name | HUIYI |
Here comes several frequent-used PPGL steel coil products:
- Color coated roofing sheets
- Car steel sheets
- household electric appliances steel sheets
PPGL STEEL COIL DESCRIPTION
PPGL STEEL COIL APPLICATION
Type Of Coating:
The coating types currently used for PPGI/PPGL steel coil include PE, PVDF, SMP, acrylic, PVC, etc.
PE
The PE-coated color-coated steel sheet is easy to be processed and formed because of its good adhesion, and the price is relatively cheap. But the other degree of UV resistance and chalking resistance is relatively low. PE color coated steel can be used for the roof of ordinary civil buildings.
SMP
SMP steel plate has better durability, and the cost is higher than the PE coating. Silicone is not as good as PE in terms of adhesion and processing formability to materials,
High Durable Polyester (HDP)
It is better than ordinary SMP coatings, and its outdoor weather resistance reaches 16 years. Its flexibility and weather resistance are higher.
PVC
PVC coating has nice anti-chemical and anti-water, and the coasting is relatively thick, which can well protect the substrate.
The PVC coating is rarely used because they pollute the environment.
PVDF
PVDF coatings have great color retention and corrosion resistance. Among the PPGI sheet coating for construction, it is the highest grade.
Acrylic
The comprehensive performance is good, the price is expensive, and it is only used in specific fields (such as containers).
| Coating primer | Top paint coating | Service life(years) |
1) Epoxy primer, good adhesion, water resistance, alkali resistance, chemical corrosion resistance, poor single toughness.
2) Polyester primer, good adhesion, good flexibility, sensitive to humid environment, chemical resistance is not as good as epoxy primer.
3) Acrylic primer, good adhesion, good toughness and high pretreatment requirements.
4) polyurethane primer, chemical resistance, abrasion resistance, durability, toughness | 1) Polyester resin, good adhesion, molding and outdoor durability. | 8-10 |
| 2) Silicon Modified Polyester (SMP) | 10-15 |
| 3) High weather resistant polyester (HDP) | 12-15 |
| 4) Polyvinyl fluoride (PVC) | 12-15 |
| 5) Polyvinylidene fluoride/fluorocarbon (PVDF) It has good formability and color retention, good outdoor durability and powder resistance, solvent resistance, limited color and high price. | 12-20 |
Coating Performance Comparison Table:
| Category | Hardness | Bend | Corrosion resistance | Weather resistance | Cost | Coating thickness requirements
/um |
| Polyester | excellent | good | good | good | excellent | 20 |
| Acrylic | excellent | general | good | good | inferior | 20 |
| Silicon modified polyester | good | general | good | excellent | good | 20 |
| PVC sol | general | excellent | excellent | good | inferior | 200 |
| PVDF | general | excellent | excellent | excellent | inferior | 25 |
| HDP | good | excellent | good | excellent | good | 20 |
PACKING AND SHIPPING OF PPGL STEEL COIL
Standard exporting package.wrapped with waterproof paper.Then after fully wrapped with high density PE film.Then after fully covered with iron sheet with metal edge protectors, strapped with metal bands, min 4 bands horizontal, min 3 bands vertical
Query:
1. How about your Payment term?
A: We can do 20% TT as advanced,balance against scan copy of BL before arriving at destination port.
Or 100% irrevocable LC at sight
2. How about your quality?
A: We have experienced inspector to check each order before production,if can not reach customer's
quirements,we won't export to our clients.
3. How about your relationship with your clients?
A: We not only treat our clients as partners,but also friends.We care much about longterm ship,but not one
time business.If you do business with us , you can completely belive us as a friend.
4. How about your experience?
A: We have exported steel products many years, know all kinds of steel products very well.We can always grasp the market and suggest our clients to order at the appropriate time.
Product Tags:
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1.5mm Pre Painted Galvalume PPGL Steel Coil DX51D Building Materials Images
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