PPGI Steel Sheet

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Prepainted Galvanized Steel Coil & Sheet

Prepainted galvanized steel sheet, also known as color coated steel sheet, is a high-performance decorative and structural steel product made by coating high-quality hot-dip galvanized steel coil with multi-layer organic paint through advanced continuous coating and baking lines. It integrates the excellent corrosion resistance of galvanized steel and the rich color, decorative and weather-resistant properties of organic coating, featuring bright color, stable performance, easy processing and long service life. It is widely used in construction, home appliances, transportation, packaging and exterior decoration industries, and is a preferred environment-friendly and cost-effective material for modern engineering and manufacturing.

Key Product Features

  • Outstanding Corrosion & Weather Resistance: Based on hot-dip galvanized substrate, with double protection of organic paint layer and passivation treatment, it effectively resists ultraviolet rays, rain erosion, acid and alkali corrosion, and rust. It maintains stable color and performance in outdoor harsh environments, with a service life far longer than ordinary steel sheets.
  • Rich Color & Decorative Effect: Available in a wide range of solid colors, metallic colors, matte, glossy and textured finishes, customizable according to customer needs. The surface is smooth and uniform, with bright and non-fading color, perfectly meeting various architectural and decorative aesthetic requirements.
  • Excellent Formability & Processing Performance: Good flexibility and adhesion, the paint layer does not crack or peel off during bending, stamping, cutting and deep drawing processing. Compatible with conventional processing equipment, easy to form and install, suitable for mass industrial processing.
  • High Surface Hardness & Wear Resistance: The cured organic coating has high surface hardness, strong scratch resistance and friction resistance, not easy to scratch and damage during transportation, installation and use, keeping the surface intact for a long time.
  • Eco-Friendly & Cost-Effective: No secondary painting needed after processing, reducing construction pollution and cost. Low maintenance, recyclable, energy-saving and emission-reducing, complying with global green building and environmental protection standards.

Typical Applications

  • Construction Industry: Roof panels, wall cladding, ceiling, partition boards, garage doors, shutter doors, prefabricated houses, steel structure buildings
  • Home Appliances: Refrigerator shells, washing machine panels, air conditioner outer casings, electrical cabinets, small home appliance shells
  • Transportation: Automobile interior and exterior panels, container body panels, railway vehicle decoration panels, ship interior decoration
  • Decoration & Packaging: Advertising billboards, interior decoration panels, metal packaging boxes, furniture panels, pipeline exterior decoration

Product Specification Table

Item
Standard Specification
Product Name
Prepainted Galvanized Steel Coil / Color Coated Steel Sheet (PPGI)
Executive Standard
GB/T 12754, EN 10169, ASTM A755, JIS G3312
Substrate Grade
DX51D+Z, DX52D+Z, SGCC, SGHC, TDC51D, Q195, Q235B
Substrate Type
Hot-Dip Galvanized (GI), Hot-Dip Galvanized-Aluminum (GL)
Zinc Coating Weight
Z60, Z100, Z140, Z180, Z275 (g/m², double-sided)
Thickness
0.18mm – 1.2mm (Customizable)
Width
600mm – 1250mm (Customizable)
Length (Sheet)
1000mm – 6000mm (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
Packaging
Waterproof Paper + Plastic Film + Steel Strip + Wooden Pallet (Export Standard)

Service & Support

  • Customization: Customizable size, color, coating type, thickness and substrate according to customer drawings and requirements
  • Stable Supply: Large inventory, advanced production line, ensuring fast delivery and stable supply
  • 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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