Shanghai Huiyi International Co., Ltd.
Shanghai Huiyi International Co., Ltd.
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SGLCC PPGI Prepainted RAL Colour Steel Coil / Color Coated Galvanized Steel Coils
Color Prepainted Galvanized PPGI Steel Coils is a product made of cold rolled steel plate and galvanized steel plate by surface pretreatment (degreasing, cleaning, chemical conversion), continuous coating (roll coating), baking and cooling. Coated steel sheet has light weight, beautiful appearance, good corrosion resistance and can be processed directly. It provides a new raw material for construction, shipbuilding, vehicle manufacturing, household electrical appliances, electrical industry, etc. It has played a good role in replacing wood with steel, efficient construction, energy saving, pollution prevention and other good results
Color Prepainted Galvanized PPGI Steel Coils Poducing process
Prepainted Galvalume Steel Coil Application :
Type Of prepainted galvalume steel coil 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 PREPAINTED GALVALUME 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 more than 6years, know all kinds of steel products very well.We can always grasp the market and suggest our clients to order at the appropriate time.