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PPGL Coil is manufactured by applying high-performance paint coatings to galvalume steel, combining the superior corrosion resistance of an aluminum-zinc alloy coating with a durable color-coated finish. It offers outstanding weather resistance, excellent heat reflectivity, and extended service life, making it ideal for demanding outdoor environments.
Widely used in roofing systems, wall cladding, industrial buildings, commercial projects, and coastal construction requiring long-lasting protection and premium decorative performance.
PPGL coil products (pre-painted galvalume steel coils, color-coated Al-Zn alloy steel rolls, and architectural roofing prepainted coils) represent premium-grade coated steel materials engineered for long-term outdoor weatherability, heat reflectivity, and superior edge corrosion protection. Manufactured using a continuous hot-dip galvalume substrate (55% Aluminum, 43.4% Zinc, and 1.6% Silicon) combined with multi-layer organic paint coatings, these color-coated steel coils offer double the service life of standard galvanised PPGI profiles in demanding coastal and heavy industrial environments.
At XQJ Metal, we manufacture and export precision-coated PPGL coil supplies complying strictly with international engineering standards, including ASTM A792, EN 10169, JIS G3322, and GB/T 12754 specifications. Our production lines cover customizable substrate weights from AZ30 to AZ150 g/m², topcoat paint thicknesses from 15µm to 35µm, and an extensive palette of RAL K7 architectural color finishes.
| Technical Parameter | Standard Commercial Range | Available Options & Grades |
| Substrate Composition | 55% Al, 43.4% Zn, 1.6% Si | Galvalume Steel Substrate (AZ30 – AZ150 g/m²) |
| Coil Thickness Range | 0.12mm to 1.20mm | Tolerance ±0.02mm (High-Precision Cold Rolled) |
| Coil Width Options | 600mm to 1250mm | Standard 914mm, 1000mm, 1200mm, 1250mm, or Slit Strip |
| Paint System Options | Topcoat: 15–30µm | Back: 5–15µm | PE (Polyester), SMP, HDP (High Durability), PVDF |
| Color & Surface Finish | RAL Color System | Glossy, Matt, Wrinkled, Embossed, Wood-grain, Camouflage |
Understanding the metallurgical differences between a PPGL coil and a conventional PPGI coil is essential for choosing the right material for architectural longevity:
Our heavy-duty PPGL coil inventory is manufactured with advanced 5-layer surface treatment technology:
Our high-grade PPGL coil supplies are widely processed across diverse manufacturing and construction sectors:
To ensure 100% paint adhesion and substrate uniformity, every master batch of PPGL coil undergoes rigorous laboratory testing prior to ocean shipment:
Q1: What is the recommended galvalume coating weight for coastal PPGL coil applications?
A: For severe marine or humid coastal environments, we recommend specifying a galvalume substrate rating of at least AZ100 to AZ150 g/m² paired with a PVDF topcoat paint system.
Q2: Can XQJ Metal provide narrow width slitting or cut-to-length sheet processing?
A: Yes, we offer precision coil slitting down to 50mm strip widths and flying shear cut-to-length sheet processing tailored to your factory machinery requirements.
To request color swatch cards, coating weight charts, or factory-direct wholesale pricing for PPGL coil supplies, Contact Our Coated Steel Sales Team today.
XQJ Metal delivers fully containerized sea transport for international PPGL coil shipments. Our export logistics team coordinates heavy-duty moisture barrier wrapping, customized port handling, and clear EN 10204 3.1 documentation to ensure your materials arrive in prime mill condition.
Our materials support a wide range of construction and infrastructure projects
Galvanized Steel Coil is coated with zinc for reliable corrosion protection, while Galvalume Steel Coil uses an aluminum-zinc coating that provides enhanced corrosion resistance and better heat reflectivity. The best choice depends on the service environment and project requirements.
The required zinc coating depends on the service environment and expected product life. Higher coating weights provide better corrosion resistance, especially for outdoor and humid conditions. Our team can recommend suitable specifications based on your application.
Yes. Galvanized Steel Coil can be slit, cut to length, or roll formed into roofing sheets, wall panels, and various fabricated steel products according to your project requirements.
It offers excellent resistance to seawater corrosion and maintains strength in humid and salt-rich conditions.
No. Strength is achieved through strain hardening rather than heat treatment.
Yes. It provides excellent weldability for structural fabrication.
Yes, it is commonly applied in tanks and pressure equipment.
Yes. It provides higher strength compared with most non-heat-treated aluminum alloys.
Yes. Thickness, width and temper can be adjusted based on project demand.
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