0.18mm CGCC Pre Painted Steel Coil with 60g/m² Zinc Coating for Roofing and Building Panels
0.18mm CGCC Pre Painted Steel Coil with 60g/m² Zinc Coating for Roofing and Building Panels
１．Product Overview
Pre Painted Steel Coil is a color coated steel material used for roofing sheets, wall panels, furniture components, vehicle parts, electric industry panels, and general building applications.
This product uses CGCC steel substrate with 60g/m² zinc coating and polyester coating system. The 0.18mm thickness and 700mm width make it suitable for lightweight panel processing, decorative sheet production, and formed building components.
２．Technical Solution
The steel substrate is zinc coated first, then processed with primer and polyester paint coating. The zinc coating improves corrosion resistance, while the paint system provides color appearance and surface protection.
The top surface uses 15–20μm polyester coating plus 5μm primer. The back surface uses 5–7μm coating plus 5μm primer to improve reverse-side protection during forming, storage, and installation.
Printing, filmed, matte, and wrinkled painted surfaces are available for different appearance requirements.
３．Specifications
| Parameter | Value |
|---|---|
| Product Name | Pre Painted Steel Coil |
| Grade | CGCC |
| Thickness | 0.18mm |
| Width | 700mm |
| Zinc Coating | 60g/m² |
| Top Surface | 15–20μm Polyester + 5μm Primer |
| Back Surface | 5–7μm + 5μm Primer |
| Painted Surface | Printing / Filmed / Matte / Wrinkled |
| Color | Refer to RAL |
| Coil Weight | 2–5MT |
| Type of Substrate | Galvanized Steel / Galvalume Steel / Aluminum |
| Paint Top | 15–35μm |
| Paint Back | 5–35μm |
| Top Painted | PVDF / HDP / SMP / PE / PU |
| Primer Painted | Polyurethane / Epoxy / PE |
| Back Painted | Epoxy / Modified Polyester |
４．Application
- Roofing sheets for steel structure workshops
- Airport and warehouse roofing panels
- Wall cladding panels
- Shipbuilding components
- Vehicle manufacturing parts
- Furniture panels
- Electric industry panels
- Decorative building sheets
- General construction components
５．Processing
- Roll forming
- Slitting
- Cut-to-length processing
- Bending
- Profiling
- Roofing sheet production
- Wall panel fabrication
- Decorative sheet processing
- Furniture panel forming
６．Advantages
- 60g/m² zinc coating provides basic corrosion protection for building and fabrication use.
- 15–20μm polyester top coating improves surface appearance and weather resistance.
- 5–7μm back coating supports reverse-side protection during handling and installation.
- RAL color reference supports consistent project appearance.
- 0.18mm thickness is suitable for lightweight panel and decorative applications.
- 700mm width supports narrow-width forming and sheet processing.
- Multiple painted surface options support different architectural and decorative needs.
７．How to Choose
- For roofing and wall panels, confirm profile design, thickness, width, and coating requirements before production.
- For decorative panels, confirm RAL color, surface type, and gloss requirement.
- For outdoor use, select coating type according to weather exposure and corrosion conditions.
- For forming operations, confirm bending radius and processing method to reduce coating damage.
- For long-term storage, keep coils in dry conditions and avoid direct moisture exposure.
８．FAQ
Q1．What is the zinc coating of this product?
The zinc coating is 60g/m².
Q2．What is the specified thickness and width?
The specified thickness is 0.18mm and the specified width is 700mm.
Q3．What top coating structure is used?
The top surface uses 15–20μm polyester coating plus 5μm primer.
Q4．What back coating structure is used?
The back surface uses 5–7μm coating plus 5μm primer.
Q5．What applications are suitable for this coil?
It is suitable for roofing sheets, wall panels, furniture, vehicle manufacturing, electric industry panels, and decorative building components.
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