JIS CGCC Soft Prepainted Color Steel Coil (PPGI / PPGL) in White, Blue, or Custom RAL Colors for Roofing and Construction Panels

JIS CGCC Soft Prepainted Color Steel Coil (PPGI / PPGL) in White, Blue, or Custom RAL Colors for Roofing and Construction Panels

1. Product Overview

Prepainted color steel coil is used where a finished colored surface and coated steel substrate are both required in one material. This product range covers white, blue, and custom RAL colors for roofing sheets, wall panels, appliance panels, and general building sheet fabrication.

The source specification includes both PPGI and PPGL options. In practical terms, PPGI uses a galvanized steel base, while PPGL uses an aluminum-zinc coated base. Both are supplied in coil form for roll forming, cut-to-length processing, and downstream panel production.

2. Technical Solution

Product performance is based on:

• Coated metallic substrate as the base protective layer
• Organic paint system for surface finish and additional barrier protection
• Soft commercial quality or LFQ for forming and profiling
• 700–1250 mm width range for mainstream sheet and roll-forming lines
• 508 mm and 610 mm coil IDs for standard industrial equipment compatibility

For this type of material, the actual service result depends on three linked factors: substrate type, paint system, and forming condition. Polyester is commonly used for standard projects, SMP for improved weather exposure resistance, and fluoropolymer systems for stronger long-term outdoor durability.

3. Specifications

4. Application

• Roofing sheets for steel structure workshops and warehouses
• Wall cladding and facade panels
• Home appliance outer panels
• Container-related sheet parts
• Furniture and light fabricated sheet components
• General construction and decorative panel production

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 downstream designation

6. Advantages

• 0.2–1.2 mm thickness range covers common prepainted panel applications
• 700–1250 mm width range fits mainstream roofing and cladding lines
• White, blue, and custom RAL colors support project appearance matching
• Soft commercial quality and LFQ options improve forming flexibility
• PPGI and PPGL options allow substrate selection by service condition
• 508 mm and 610 mm coil IDs are compatible with common processing equipment

7. How to Choose

• General roofing and wall panel use → polyester is commonly selected
• Projects requiring better weather resistance → SMP is often preferred
• Higher UV and long-term exterior exposure → fluoropolymer systems are usually preferred
• Standard galvanized substrate requirement → choose PPGI
• Aluminum-zinc coated substrate requirement → choose PPGL
• Higher rigidity requirement → select the upper end of the 0.2–1.2 mm thickness range

8. FAQ

Q1: Is this product PPGI or PPGL?
This specification covers both. PPGI uses a galvanized base, while PPGL uses an aluminum-zinc coated base.

Q2: What colors are available?

The source specifies white, blue, and customized colors according to the RAL color system.

Q3: What does LFQ mean?
LFQ means lock forming quality, which is used when better forming performance is needed in profiling and sheet fabrication.

Q4: Can this coil be used for roofing sheet production?
Yes. It is commonly used for roll formed roofing sheets and wall cladding profiles.

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