HDP Coated PPGL Corrugated Steel Sheet – Industrial & Coastal Grade
Product Overview
Galvalume-based PPGL corrugated steel sheet is a high-performance roofing and cladding material designed for long-life outdoor service. Built on 55% aluminum-zinc alloy coated steel substrate with high-durability polyester paint, it combines superior corrosion resistance, thermal reflectivity and weather resistance. This industrial grade delivers significantly longer service life than standard GI and PPGI corrugated sheets, making it the preferred choice for industrial plants, coastal buildings and long-life infrastructure.
Why Choose CNB PPGL Corrugated Sheets?
We use only high-quality galvalume base coils with verified Al-Zn alloy composition and coating mass, ensuring consistent corrosion performance. Our HDP paint systems are specially formulated for galvalume substrate, providing excellent adhesion and long-term weathering. Every sheet undergoes strict paint adhesion testing and dimensional inspection to guarantee reliable long-term outdoor performance.
Key Specifications
| Item | Specification |
|---|---|
| Product Name | HDP Coated PPGL Corrugated Steel Sheet |
| Base Material | Pre-painted galvalume steel (PPGL), AZ150 |
| Paint System | High Durability Polyester (HDP) |
| Al-Zn Coating Mass | AZ100 – AZ185g/m² (AZ150 standard) |
| Base Thickness Range | 0.2mm – 1.0mm |
| Total Sheet Width | 1000mm / 1250mm |
| Effective Cover Width | 900mm / 1150mm |
| Corrugation Profile | Trapezoidal / sinusoidal option |
| Color Options | Standard industrial RAL colors |
| Applicable Standards | ASTM A792, EN 10215 |
| Typical Service Life | 15–20 years (industrial / coastal) |
| Thermal Reflectivity | Up to 80% solar reflectance |
Core Advantages
- Superior corrosion resistance: 2–3x longer life than standard GI-based corrugated sheets.
- High thermal reflectivity: Reduces building cooling load and improves energy efficiency.
- Industrial weather resistance: HDP paint withstands UV, pollution and salt spray better than standard PE.
- Lightweight strength: High strength-to-weight ratio for long span roofing systems.
- Long lifecycle: Matches 20+ year design life of industrial and commercial buildings.
Applications
This PPGL corrugated sheet is widely used for industrial plant roofing, warehouse wall cladding, coastal building envelopes, solar panel support roofs, agricultural greenhouses, power station buildings and long-life infrastructure projects.
Get a Quotation
We supply galvalume corrugated steel sheets in various coating weights, paint systems and profiles for industrial and coastal projects. Weathering test reports and project-specific material recommendations are available upon request. Contact our industrial roofing team for a detailed quotation.
