HDP High Durability PPGL Steel Coil – Construction Roofing Grade
Product Overview
High Durability Polyester (HDP) coated galvalume (PPGL) steel coil is the standard roofing substrate material for industrial and commercial building envelopes. Built on S250GD structural grade galvalume base with enhanced weather-resistant paint, it delivers excellent UV resistance, color retention and corrosion performance for long-life roofing and cladding applications. This grade balances cost and durability, making it the most widely specified material for factory, warehouse and commercial building roofing systems.
Why Choose CNB Construction Roofing Coils?
We source construction-grade color coils from leading Chinese coating lines with strict control over coating adhesion, color consistency and weathering performance. Every coil undergoes full film thickness testing and adhesion verification to ensure reliable performance on roll forming lines. We maintain large stock of standard roofing colors and widths for fast delivery, and support custom color matching and slitting services for project-specific requirements.
Key Specifications
| Item | Specification |
|---|---|
| Product Name | HDP Coated PPGL Roofing Steel Coil |
| Base Substrate | AZ150 galvalume steel, S250GD structural grade |
| Coating System | HDP topcoat + primer + backcoat |
| Total Film Thickness | 27–35μm (double side) |
| Base Steel Thickness | 0.3mm – 1.2mm |
| Standard Coil Widths | 1000mm, 1220mm, 1250mm |
| Coil Inner Diameter | 508mm / 610mm |
| Coil Weight | 3MT – 8MT per coil |
| Color Options | Standard RAL roofing colors + custom matching |
| Applicable Standards | EN 10169, ASTM A792 |
| Expected Service Life | 12–15 years (normal inland exposure) |
Core Advantages
- Proven weather durability: HDP coating outperforms standard PE by 30–50% in UV and color retention.
- Structural grade base: S250GD grade supports long span roofing and high wind loads.
- Forming-ready coating: No cracking or peeling during roll forming and profiling.
- Fast project delivery: Large stock of standard colors and widths for immediate dispatch.
- Customization capability: Custom colors, widths and coating weights for specific projects.
Applications
This HDP PPGL roofing coil is widely used for industrial factory roofing, warehouse wall cladding, commercial building envelopes, agricultural sheds, prefabricated buildings and general construction roofing and cladding systems.
Get a Quotation
We supply construction roofing steel coils in PE, HDP and PVDF coating systems with various substrate options. Free color samples and weathering test reports are available upon request. Contact our construction materials team for a competitive project quotation.
