Type: color coated coils, coated coil
Application: Automotive, Home Appliances, Agriculture, Construction
Thickness: 0.12-2.0mm. Width: 600-1500mm
Top paint/back paint: 5+15μm/7-9μm or 5+20μm/10-12μm or as per client’s needs
Zinc coating: Z30-Z275. Coil ID: 508mm/610mm
Standard: JIS, AISI, ASTM, GB, DIN, EN, etc.
Packing: Vertical or Horizontal package
Availability: | |
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Prepainted Galvanized Steel Coil (PPGI)
Prepainted steel sheet is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of galvanized steel sheets.
Base metal:
The base metals for prepainted steel sheet consist of cold rolled, hot-dip galvanized, electro-galvanized and hot-dip zinc-alu-mag base metal. The finish coats of prepainted steel sheets can be classified into groups as follows: polyester, silicon modified, polyesters, polyvinylidene fluoride, high-durability polyester etc.
Prepainted Aluzinc Steel Coil, Prepainted Galvalume Steel Coil (PPGL)
Prepainted steel sheet is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of aluzinc steel sheets.
The base metals for prepainted steel sheet consist of cold rolled, hot-dip galvanized, electro-galvanized and hot-dip zinc-alu-mag base metal. The finish coats of prepainted steel sheets can be classified into groups as follows: polyester, silicon modified, polyesters, polyvinylidene fluoride, high-durability polyester etc.
Type Of Steel
For buildings, the bearing weight (wind load, snow load) and the span of the building all depend on the strength of the steel plate. Divided into CQ, DQ, HSS, FH according to steel types.
Noted:Generally, the PPGI coils for construction are rolled forming or sandwiched. Please use CQ steel.
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.
Prepainted Galvanized Steel Coil (PPGI)
Prepainted steel sheet is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of galvanized steel sheets.
Base metal:
The base metals for prepainted steel sheet consist of cold rolled, hot-dip galvanized, electro-galvanized and hot-dip zinc-alu-mag base metal. The finish coats of prepainted steel sheets can be classified into groups as follows: polyester, silicon modified, polyesters, polyvinylidene fluoride, high-durability polyester etc.
Prepainted Aluzinc Steel Coil, Prepainted Galvalume Steel Coil (PPGL)
Prepainted steel sheet is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of aluzinc steel sheets.
The base metals for prepainted steel sheet consist of cold rolled, hot-dip galvanized, electro-galvanized and hot-dip zinc-alu-mag base metal. The finish coats of prepainted steel sheets can be classified into groups as follows: polyester, silicon modified, polyesters, polyvinylidene fluoride, high-durability polyester etc.
Type Of Steel
For buildings, the bearing weight (wind load, snow load) and the span of the building all depend on the strength of the steel plate. Divided into CQ, DQ, HSS, FH according to steel types.
Noted:Generally, the PPGI coils for construction are rolled forming or sandwiched. Please use CQ steel.
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.
Thickness range(mm) | Width (mm) | Length (mm) | Pkt. Weight (MT) | Standards |
0.18 – 1.25 | 1250 Max. | 4,000 Max. | 3 Max. |
1. Classifications & Sympol
Classifications | Items | Symbol |
Paint type | Polyester | PE |
Silicon modified polyester | SMP | |
High-durability polyester | HDP | |
Polyvinylidene fluoride | PVDF | |
Paint surface texture | Regular prepainted | TC |
Embossed sheet | YA | |
Printed sheet | YI | |
Paint structure | One-coating-and one-baking | 2/1 |
Double-coating-and-double-baking | 2/2 |
2. Paint property:
Top paint | Paint thickness/ μm | Pencil hardness | 180° bend | Impact(J) | Salt pray resistance |
PE | ≥20 | ≥F | ≤4T | ≥9 | ≥1000hours |
SMP | ≥20 | ≥F | ≤4T | ≥9 | ≥1000hours |
HDP | ≥20 | ≥HB | ≤4T | ≥9 | ≥1500hours |
PVDF | ≥20 | ≥HB | ≤4T | ≥9 | ≥2000hours |
3.Steel Grade and Application:
Base metal of Prepainted steel | Application | ||||
Hot-dip Zinc | Hot-dip Zinc-Fe alloy | Hot-dip Al-Zinc alloy | Hot-dip Z-Al alloy | Eletro-galvanized | |
TDC51D+Z | TDC51D+ZF | TDC51D+AZ | TDC51D+ZA | TDC01+ZE | CQ |
TDC52D+Z | TDC52D+ZF | TDC52D+AZ | TDC52D+ZA | TDC03+ZE | DQ |
TDC53D+Z | TDC53D+ZF | TDC53D+AZ | TDC53D+ZA | TDC04+ZE | DDQ |
TDC54D+Z | TDC54D+ZF | TDC54D+AZ | TDC54D+ZA | / | EDDQ |
TS250GD+Z | TS250GD+ZF | TS250GD+AZ | TS250GD+ZA | / | Structure |
TS280GD+Z | TS280GD+ZF | TS280GD+AZ | TS280GD+ZA | / | Structure |
/ | / | TS300GD+AZ | / | / | Structure |
TS320GD+Z | TS320GD+ZF | TS320GD+AZ | TS320GD+ZA | / | Structure |
TS350GD+Z | TS350GD+ZF | TS350GD+AZ | TS350GD+ZA | / | Structure |
TS550GD+Z | TS550GD+ZF | TS550GD+AZ | TS550GD+ZA | / | Structure |
4. Mechanical property:
Steel Grade | Y.S/MPA | T.S/MPA | EL./ ≥% |
TDC51D+Z/ZM/AZ | 240 ~ 380 | 270 ~ 500 | 22 |
TDC52D+Z/ZM/AZ | 140 ~ 300 | 270 ~ 420 | 26 |
TDC53D+Z/ZM/AZ | 140 ~ 260 | 270 ~ 380 | 30 |
TDC54D+Z/ZM/AZ | 120 ~ 220 | 260 ~ 350 | 36 |
Thickness range(mm) | Width (mm) | Length (mm) | Pkt. Weight (MT) | Standards |
0.18 – 1.25 | 1250 Max. | 4,000 Max. | 3 Max. |
1. Classifications & Sympol
Classifications | Items | Symbol |
Paint type | Polyester | PE |
Silicon modified polyester | SMP | |
High-durability polyester | HDP | |
Polyvinylidene fluoride | PVDF | |
Paint surface texture | Regular prepainted | TC |
Embossed sheet | YA | |
Printed sheet | YI | |
Paint structure | One-coating-and one-baking | 2/1 |
Double-coating-and-double-baking | 2/2 |
2. Paint property:
Top paint | Paint thickness/ μm | Pencil hardness | 180° bend | Impact(J) | Salt pray resistance |
PE | ≥20 | ≥F | ≤4T | ≥9 | ≥1000hours |
SMP | ≥20 | ≥F | ≤4T | ≥9 | ≥1000hours |
HDP | ≥20 | ≥HB | ≤4T | ≥9 | ≥1500hours |
PVDF | ≥20 | ≥HB | ≤4T | ≥9 | ≥2000hours |
3.Steel Grade and Application:
Base metal of Prepainted steel | Application | ||||
Hot-dip Zinc | Hot-dip Zinc-Fe alloy | Hot-dip Al-Zinc alloy | Hot-dip Z-Al alloy | Eletro-galvanized | |
TDC51D+Z | TDC51D+ZF | TDC51D+AZ | TDC51D+ZA | TDC01+ZE | CQ |
TDC52D+Z | TDC52D+ZF | TDC52D+AZ | TDC52D+ZA | TDC03+ZE | DQ |
TDC53D+Z | TDC53D+ZF | TDC53D+AZ | TDC53D+ZA | TDC04+ZE | DDQ |
TDC54D+Z | TDC54D+ZF | TDC54D+AZ | TDC54D+ZA | / | EDDQ |
TS250GD+Z | TS250GD+ZF | TS250GD+AZ | TS250GD+ZA | / | Structure |
TS280GD+Z | TS280GD+ZF | TS280GD+AZ | TS280GD+ZA | / | Structure |
/ | / | TS300GD+AZ | / | / | Structure |
TS320GD+Z | TS320GD+ZF | TS320GD+AZ | TS320GD+ZA | / | Structure |
TS350GD+Z | TS350GD+ZF | TS350GD+AZ | TS350GD+ZA | / | Structure |
TS550GD+Z | TS550GD+ZF | TS550GD+AZ | TS550GD+ZA | / | Structure |
4. Mechanical property:
Steel Grade | Y.S/MPA | T.S/MPA | EL./ ≥% |
TDC51D+Z/ZM/AZ | 240 ~ 380 | 270 ~ 500 | 22 |
TDC52D+Z/ZM/AZ | 140 ~ 300 | 270 ~ 420 | 26 |
TDC53D+Z/ZM/AZ | 140 ~ 260 | 270 ~ 380 | 30 |
TDC54D+Z/ZM/AZ | 120 ~ 220 | 260 ~ 350 | 36 |
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,
Process
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. | 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 |
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 |
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,
Process
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. | 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 |
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 |
Coils are wrapped with VCI / HDPE and packed with galvanised iron sheets on OD (outer diameter) and side of the coils with high tensile steel strapping and metallic seal. Eye to sky coils kept on wooden skid.
Coils are wrapped with VCI / HDPE and packed with galvanised iron sheets on OD (outer diameter) and side of the coils with high tensile steel strapping and metallic seal. Eye to sky coils kept on wooden skid.
</template> Hunan Gaoxing Steel Development Zone, No.1888 Purui South Rd, Wangcheng District,Changsha, Hunan, China
Tel: 0086-0731-88739521