PPGL Steel Coil

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Prepainted Galvanized Steel Coil (PPGI)

Prepainted Galvanized Steel Coil, widely known as PPGI, is a premium multi-functional steel product manufactured via advanced continuous coating and hot-baking technology. Taking high-quality hot-dip galvanized steel coil as the base material, it is coated with multi-layer high-performance organic coatings on both top and bottom surfaces through precise production procedures, combining the exceptional corrosion resistance of galvanized steel with the rich color, excellent weatherability and high decorative performance of organic coatings. Featuring stable performance, uniform coating, bright color and strong processability, it is widely used in construction, home appliances, transportation, exterior decoration and packaging industries, serving as a cost-effective and eco-friendly core material for modern industrial and civil projects.

Key Product Advantages

  • Outstanding Corrosion & Weather Resistance: With a hot-dip galvanized substrate and double-layer protective organic coating, it effectively resists ultraviolet radiation, rain erosion, acid and alkali corrosion, and oxidation. It maintains stable color and physical performance even in long-term outdoor, humid and coastal salt-spray environments, greatly extending the service life compared with ordinary steel coils.
  • Rich Color Options & High Decorativeness: Available in a full range of solid colors, metallic shades, matte and glossy finishes, as well as embossed and textured surfaces. Custom colors are supported to meet diverse project and design needs, with uniform coating, bright luster and excellent color fastness, perfectly matching architectural aesthetics and appearance requirements.
  • Excellent Forming & Processing Performance: The coating features superior flexibility and strong adhesion, not easy to crack or peel off during bending, cutting, stamping and roll forming. It is fully compatible with conventional steel processing equipment, supporting efficient batch processing and installation, suitable for various industrial processing scenarios.
  • High Surface Hardness & Wear Resistance: The cured coating has high surface hardness, strong scratch and friction resistance, reducing surface damage during transportation, processing and installation, and keeping a smooth and intact appearance for a long time.
  • Eco-Friendly & Cost-Effective: No secondary painting is required after processing, which reduces construction pollution and on-site cost. It features low later maintenance cost, recyclable material, energy conservation and emission reduction, complying with international green building and environmental protection standards.

Typical Applications

  • Construction: Roofing sheets, wall cladding, rolling shutter doors, garage doors, prefabricated houses, steel structure building enclosures, ceiling and partition panels
  • Home Appliances: Refrigerator shells, air conditioner outdoor unit casings, washing machine panels, electrical cabinets, small household appliance shells
  • Transportation: Container body panels, automobile interior and exterior trims, railway vehicle decoration parts, ship interior decoration panels
  • Others: Advertising billboards, metal packaging, furniture panels, pipeline exterior decoration, agricultural greenhouse frames

Product Specification Table

Item
Standard Specification
Product Name
Prepainted Galvanized Steel Coil (PPGI)
Executive Standard
GB/T 12754, EN 10169, ASTM A755, JIS G3312
Base Material Grade
DX51D+Z, DX52D+Z, SGCC, SGHC, TDC51D, Q195, Q235B
Base Material Type
Hot-Dip Galvanized Steel (GI), Hot-Dip Galvanized-Aluminum Steel (GL)
Zinc Coating Weight
Z60, Z100, Z140, Z180, Z275 (g/m², double-sided)
Coil Thickness
0.18mm – 1.2mm (Customizable)
Coil Width
600mm – 1250mm (Customizable)
Coating Type
Polyester (PE), Silicon Modified Polyester (SMP), Polyvinylidene Fluoride (PVDF), High Durable Polyester (HDP)
Top Coat Thickness
15–30μm
Primer Coat Thickness
5–8μm
Surface Finish
Glossy, Matte, Metallic, Embossed, Wrinkle
Color
Customizable (White, Gray, Blue, Red, Beige, etc.)
Mechanical Properties
Yield Strength: 180–320MPa; Tensile Strength: 270–500MPa
Packing
Waterproof Paper + Plastic Film + Steel Strip + Wooden Pallet (Export Standard)

Service & Support

  • Customization: Customizable size, color, coating type, thickness and base material as per customer requirements
  • Stable Supply: Adequate inventory and advanced automatic production lines to ensure on-time delivery
  • Quality Assurance: Strict full-process quality inspection, providing Material Test Certificates (MTC) and coating performance reports
  • Cooperation Mode: Support wholesale, bulk export, OEM and ODM cooperation
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