AZ150 Prepainted Galvalume Steel Coil (PPGL) 0.2–1.2mm with 700–1250mm Width for Roofing, Construction, and Appliance Panels

1. Product Overview

Prepainted galvalume steel coil is used where both corrosion resistance and finished surface appearance are required. Compared with bare metallic sheet, PPGL combines an aluminum-zinc coated substrate with an organic paint layer, which helps improve surface durability in outdoor and semi-exposed environments.

For this specification, the material is based on galvalume steel plate with AZ coating from AZ30 to AZ150. Thickness from 0.2 mm to 1.2 mm and width from 700 mm to 1250 mm make it suitable for roofing panels, wall sheets, home appliance covers, and other roll formed products.

2. Technical Solution

Product performance is based on:

• Aluminum-zinc coated base metal providing substrate corrosion protection
• Organic paint layer adding a second barrier and decorative finish
• 2/1 coating structure for standard visible-side applications
• Front paint thickness of 15–25 μm for exposed surface coverage
• Back paint thickness of 5–10 μm for reverse-side protection
• Different paint systems selected according to service environment

For PPGL, long-term performance depends on the combination of substrate coating, paint type, paint thickness, and forming condition. PE is commonly used for standard projects, while SMP, HDP, and PVDF are more suitable when stronger weather resistance or color retention is required.

3. Specifications

4. Application

• Roofing sheets for workshops, airports, and warehouses
• Wall cladding and facade panels
• Home appliance outer shells
• Container and light enclosure panels
• Vehicle and equipment panels
• General roll formed construction sheets

5. Processing

• Cut-to-length sheet production
• Slitting into narrower strips
• Roll forming into roofing and wall profiles
• Bending and folding
• Protective film application on top side when required
• Custom cutting and slitting according to project designation

6. Advantages

• Galvalume substrate provides aluminum-zinc based corrosion protection
• AZ150 is suitable for projects requiring stronger substrate coating performance
• 0.2–1.2 mm thickness range fits common roofing and panel lines
• 700–1250 mm width range supports mainstream roll forming equipment
• 15–25 μm front coating is suitable for visible construction surfaces
• Multiple paint systems allow selection by climate and end-use requirement

7. How to Choose

• Standard roofing and wall panels → PE is commonly selected
• Projects requiring better weather resistance → SMP or HDP is often preferred
• Long-term exterior exposure and higher UV demand → PVDF is usually preferred
• Higher rigidity requirement → choose thicker sheet within the 0.2–1.2 mm range
• Visible architectural use → confirm color, gloss, paint thickness, and protective film requirement before order
• Higher corrosion demand on substrate side → AZ150 is commonly preferred over lower AZ levels

8. FAQ

Q1: Is this product PPGI or PPGL?
This specification is PPGL, which uses a galvalume steel substrate rather than a galvanized-only substrate.

Q2: What does AZ150 mean?
AZ150 refers to the aluminum-zinc coating level on the galvalume base metal. Higher AZ levels are generally selected when stronger substrate corrosion resistance is required.

Q3: Can this coil be processed into roofing sheets?
Yes. It is commonly used for roll formed roofing sheets, wall cladding profiles, and other construction panels.

Q4: What is the difference between PE, SMP, HDP, and PVDF?
They are different paint systems. PE is commonly used for standard projects, while SMP, HDP, and PVDF are selected when stronger weather resistance and longer exterior durability are required.

Q5: What coil size is suitable for standard processing lines?
Coil IDs of 508 mm and 610 mm and coil weights of 3–12 MT are commonly used in industrial decoiling and roll forming lines.