PPGI / Color Coated Steel Sheet
Pre-Painted Galvanized / Galvalume Steel Coil
High-quality PPGI color coated steel sheets for roofing & wall cladding. PE, SMP, HDP, PVDF coatings. RAL colors, wood grain, stone finishes. Mill direct.
Product Overview
PPGI (Pre-Painted Galvanized Iron) is the most widely used material for steel building cladding and roofing. We supply color coated steel coils and sheets with a wide selection of coating systems, colors, and surface finishes — from standard polyester to premium PVDF (Kynar 500) for coastal and architectural applications.
Our PPGI is produced on continuous coating lines with reverse roll-coating technology for uniform film thickness. The substrate is hot-dip galvanized (GI) or galvalume (GL/AZ) steel, with chemical pretreatment and primer layers before the topcoat application. This multi-layer system delivers excellent adhesion, corrosion resistance, and color retention.
Available in coil form (for roll-forming cladding profiles) or cut-to-length sheets. Custom color matching per RAL or Pantone number. Minimum order quantity: 50 tons per color for factory production, or 5 tons for stock colors.
Technical Specifications
| Substrate | Hot-dip GI (Z275) / Galvalume AZ150 / AZ180 |
| Coating Types | PE (Polyester), SMP, HDP, PVDF (Kynar 500) |
| Coating Thickness | PE: 20μm, HDP: 25μm, PVDF: 27μm (top side) |
| Color Options | Full RAL chart, wood grain, stone-textured |
| Sheet Thickness | 0.3mm — 1.2mm (total) |
| Width | Coil: 600-1250mm / Sheet: custom length |
| Warranty | PE: 5-8 years, HDP: 10-15 years, PVDF: 20-25 years |
| Standard | EN 10169, ASTM A755, GB/T 12754 |
Key Features
Applications
Typical Delivery Timeline
From design approval to site delivery
Engineering Design
Calculation reports, shop drawings, erection manual
1–2 weeksFabrication
CNC cutting, welding, shot blasting, coating
4–6 weeksShipping
Container loading, ocean freight to your port
2–4 weeksSite Erection
Bolt-together assembly with remote guidance
4–8 weeksTotal project timeline: 11–20 weeks from design approval to completed installation. Rush production available.
Why Choose Laotie Steel?
15 years of manufacturing excellence, trusted by buyers in 30+ countries
CE & ISO 9001 Certified
Every product meets EN 1090-1 and ISO 9001:2015 standards. Full mill test certificates (EN 10204 3.1) provided with every shipment. IAF accredited and Made-in-China Supplier Assessed.
5,000 Tons Monthly Capacity
20,000 m² factory with 5 automated production lines. 200+ skilled workers operating 24/7. Whether you need a 500 m² workshop or a 50,000 m² industrial complex, we deliver on time.
30+ Countries Served
Export experience across Southeast Asia, Middle East, Africa, Australia, and South America. We design to your local building code: AS/NZS, BS 5950, EN 1993, AISC, or GB 50017.
Full Engineering Package
Structural calculation reports, detailed shop drawings, and erection manuals included with every order. Our engineers use Tekla, SAP2000, and STAAD.Pro for precision design.
Factory-Direct Pricing
No middleman markup. You buy directly from the manufacturer. Typical savings of 30–50% compared to local fabrication, even after shipping and duties.
15-Year Track Record
Founded in 2009 in Shangqiu, Henan — China's steel manufacturing hub. 500+ completed projects worldwide. Every bolt, plate, and member is labeled and match-marked for rapid assembly.
Frequently Asked Questions
Common questions about ppgi / color coated steel sheet
What coating types are available?
PE (polyester), SMP, HDP, and PVDF (Kynar 500). Each offers different durability and warranty periods.
What colors can I choose?
Full RAL color chart plus wood grain and stone-textured finishes. Custom color matching available.
What is the warranty period?
PE: 5-8 years, HDP: 10-15 years, PVDF: 20-25 years depending on coating system.
What substrate do you use?
Hot-dip galvanized (Z275) or galvalume (AZ150/AZ180) steel.
What is the minimum order quantity?
50 tons per color for custom production, 5 tons for stock colors.
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Ready to Start Your Project?
Send us your project requirements and drawings. Our engineering team will provide a detailed quotation with structural calculations within 24 hours.