PPGI Coil
Thickness: 0.12mm-1.5mm
Width: 600-1500mm
Paint layer: PE, SMP, HDP, PVDF-Top: 10 to 35 um (5 um + 12-20 um) Back: 7 +/- 2 um
Color: RAL color
PPGI Coil
PPGI coil is based on zinc-coated sheet, while PPGL is based on galvalume sheet. Prepainted refers to pre-painting before forming. PPGI steel coil is a steel coil that is galvanized and then coated with colored organic coatings. It is both beautiful and durable and can be processed directly. Which are mainly used in the construction and home appliance industries and has various functions.

RAL5015 PPGI Coil China manufacture

30 gauge Matt Wrinkled PPGI Rough Surface
Wanzhi Steel has a large number of SGCC/CGCC/DX51D+Z materials in stock for you to choose from. We provide 30-275g/㎡ zinc content options, PVDF, HDP, SMP, PE, PU coating options, and 0.12 mm-1.5 mm thickness options, 0.5mm Prepainted Galvanized Steel Coils is a common thickness, you can customize the length and width. And we accept third-party inspections. If you are interested, please contact Wanzhi Steel.
PPGI Coil Specification
Item | PPGI Coil |
Place of origin | Shandong, China |
Length | Customized |
Material Grade | CGCC/SGCH/G350/G450/G550/DX51D/DX52D/DX53D/Q195/Q235 |
Certificate | CE, PVOC, SIRM, ISO9001 |
Coil Weight | 3-5 Tons |
Processing Service | Welding, Punching, Cutting, Bending, Decoiling, Annealed, Black Annealed |
Type | Coil/Sheet/Plate/Strip |
Sample | Free and available |
Shipment | By sea |
Delivery | 20-28days |
Payment Term | 30%T/T Advance + 70% Balance |
Package | Internal waterproof kraft paper, external metal+wooden pallet |
Factory PPGI Coil production
Metal-coated steel can be coated with paint, vinyl dispersion, or laminate (such as sandwich panels), while PPGI and PPGL are coated with paint.

PPGI color coated steel production process
Popular colors
The more popular colors are: yellow green RAL 6018, sky blue RAL 5015, signal blue RAL 5005, rape yellow RAL 1021, traffic red 3020, moss green RAL 6005, oxide red RAL 3009, chocolate brown RAL 8017, cement gray RAL 7033, wine red RAL 3005, signal black RAL 9004, Pure WhiteRAL 9010.

Most popular RAL color
Wanzhi Steel continuous coil coating line
Products produced by Wanzhi Steel’s CCL (Continuous Coating Line) include:
- Pre-painted galvanized (PPGI) coils, with coatings complying with ASTM A755/A755M-18 and substrates complying with ASTM A653/JIS G3312/EN 10346.
- Pre-painted galvalume (PPGL) coils, with coatings complying with ASTM A755/A755M-18 and substrates complying with ASTM A792/JIS G3321/EN 10346.

Pre-painted steel production line

RAL5015 2.0mm thickness blue PPGI
Advantages of our PPGI Steel Coil
1. High-quality materials: It’s made of high-quality steel sheets, ensuring durability and corrosion resistance, meeting ASTM standards, and certified by API, BIS, SONCAP, and ISO9001.
2. Customized options: We offer customized thickness, width, and length as well as various colors, patterns (such as flower, marble, sky, grass, and 3D designs), and hardness levels (full hard, semi-hard, and normal soft).
3. Wide range of applications: The cases that have been cooperated include Libya Redemption Hospital, Kazakhstan garbage station, Turkey photovoltaic power generation project, it is suitable for roofs, civil buildings, and warehouses, facades, fences, walls, ceilings.
4. Fast delivery: We guarantee a delivery time of 20-28 days to ensure that you receive your order in time and meet the project deadline.
5. Comprehensive processing services: Full range of processing including welding, punching, cutting, bending, de-coiling, annealing, and black annealing, including “making corrugated sheets” or “making fences”.

Embossed Wrinkled PPGI PPGL Color Coated Steel Coils

RAL3001 ppgi strip slitting
Main Applications of PPGI Coils
· Construction industry: roof and wall panels of residential, commercial, and industrial buildings.
· Structural components: purlins, trusses, and frames, the outer layer of sandwich panels (insulated panels).
· Electrical appliances: panels for refrigerators, washing machines, and air conditioners, housings for industrial equipment, cabinets, control panels.
· Automotive industry: doors, hoods trunk lids, interior panels, and trims.
· Furniture: partitions, cabinets, shelves and tables, decorative panels.
· Industrial applications: corrosion-resistant tanks for the manufacture of liquids and chemicals, air ducts, and ventilation components.
· Decorative applications: signage and display panels, partitions.

Blue corrugated roof panel

application ppgi barn DX51D

Grass pattern color coated sheet
Recommended coating options
The key factors that determine the quality of paint are adhesion, corrosion resistance, UV and weather resistance, hardness and wear resistance, and color uniformity and gloss.
The paint used for color-coated steel plates depends on the environment of the selected resin.

Brick, marble, print, wooden grain, orange peel, matte, frosted

Popular Colors of Pre-painted Aluminum Coil
The following table summarizes the characteristics:
Coating type | Features and performance | Subjective recommendations |
Polyester coating PE | Outdoor life of 5-10 years, moderate cost. Suitable for places with mild climate. | High cost-performance ratio, suitable for projects with limited budget. |
High durability polyester HDP | It has excellent UV resistance, less fading than PE coating under the same light, and the color is more durable | Suitable for harsh outdoor environments |
Fluorocarbon coating (PVDF) | It can maintain color stability for more than 15 years in coastal areas or areas with strong UV rays | Suitable for coastal buildings or high UV areas |
Silicone modified polyester (SMP) | The hardness is usually above 3H, with strong scratch resistance, suitable for environments with frequent friction or heavy use. | Suitable for environments with high wear requirements such as industrial machinery |
Performance comparison
Coating type | Weather resistance | Chemical resistance | Wear resistance | Cost |
Polyester (PE) | Fair | Fair | Fair | Low |
Silicon modified polyester (SMP) | Good | Good | Good | Medium |
Polyvinylidene fluoride (PVDF) | Excellent | Excellent | Excellent | High |

Lamination process in production

16 Gauge Coil Sheet Ppgi Gi
Choice of coating structure
Ordinary environment | Outdoor environment | Harsh environment | |
Scene | Such as indoor furniture, home appliances | Such as building roofs, wall panels | Such as industrial plants, coastal areas |
Substrate
|
Galvanized steel sheet (GI) | Galvanized steel (GI) or galvalume steel (GL) | Galvalume steel sheet (GL) |
Coating | Polyester (PE) topcoat + epoxy primer | Silicon modified polyester (SMP) or polyvinylidene fluoride (PVDF) topcoat + epoxy primer | PVDF topcoat + epoxy primer + clear coat |
Coating structure type
Substrate → Chemical conversion layer → Primer layer → Topcoat layer → Back coating (optional) → Clear coat (optional).

ppgi structure technical
PPGI Coil Package
Standard seaworthy export packing: 3 layers of packing, inside is kraft paper, water plastic film is in the middle, and outside GI steel sheet to be covered by steel strips with lock.

1.0mm thickness color coated steel coil package

PPGI gi coil standard package
FAQ
Q: How can I get a quote from you?
A: You can send us an email, or leave a message, and we will reply to every message in time. Or chat with our technical manager online. You can also find our contact information on the ‘Contact Us’ page.
Q: Can I get a sample before ordering?
A: Of course. Usually, our samples are free. We can produce according to your samples or technical drawings. We can make molds and fixtures.
Q: How long is your delivery time?
A: The delivery time is usually 20-28 days (including shipping time). If there is stock, we can ship within 2-5 days.
Q: What are your payment terms?
A: Our usual payment terms are 30% deposit and the rest against bill of lading. L/C is accepted in some countries.
Q: Is the quality of the product I received guaranteed? Who should I contact if I encounter problems?
A: Our factory conducts 100% pre-delivery inspection to ensure quality. As China’s gold supplier, we always maintain quality. If you encounter any difficult problems, please contact us as soon as possible. The after-sales period is 1 year.

326 tons of PPGI steel shipped to Kazakhstan

581 tons of color coated coil shipped to Poland
About Wanzhi Steel
Wanzhi Steel is mainly engaged in the production of stainless steel, carbon steel, galvanized, aluminum, color coating, corrugated board, various profiles (section steel, Angle steel, channel steel, etc.), and other types of products, such as silicon steel, guardrail, steel sheet pile, etc.
The factory is located in Shandong, China, with a monthly output of 1,600 tons. We have rich export experience and strict quality control. Welcome to visit our production line.
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