700–1250mm Pre-painted Steel Coil with 10–25μm Top Coating and RAL Color System for Architectural and Industrial Applications
700–1250mm Pre-painted Steel Coil with 10–25μm Top Coating and RAL Color System for Architectural and Industrial Applications
１．Product Overview
Pre-painted steel coil is a color coated steel material designed for architectural panels, industrial buildings, roofing sheets, wall cladding systems, appliances, automotive parts, and decorative metal fabrication.
The product combines zinc coating and pre-painted surface technology to improve corrosion resistance, weather durability, and decorative appearance. With widths from 700–1250 mm and coil weights from 3–8 MT, the product supports continuous production, roll forming, and sheet fabrication processes.
２．Technical Solution
The product uses zinc coating from 30–275 g/m² together with PE, SMP, HDP, or PVDF paint systems for surface protection and long-term durability.
The 10–25 μm top coating improves UV resistance, color retention, and scratch resistance for exposed applications. The 5–7 μm back coating improves reverse-side corrosion resistance during storage, transport, and installation.
The RAL color system supports stable color consistency for architectural panels, appliance surfaces, automotive components, and industrial decorative applications.
３．Specifications
| Parameter | Value |
|---|---|
| Product Type | Pre-painted Steel Coil |
| Width | 700–1250 mm |
| Zinc Coating | 30–275 g/m² |
| Top Coating Thickness | 10–25 μm |
| Back Coating Thickness | 5–7 μm |
| Paint Coating | PE / SMP / HDP / PVDF |
| Coil Weight | 3–8 MT |
| Coil ID | 508 mm / 610 mm |
| Color System | RAL Color System |
| Surface Treatment | Pre-painted |
| Application | Architecture / Industrial Panels / Appliances / Automotive |
４．Application
- Roofing sheet manufacturing
- Wall cladding systems
- Architectural façade panels
- Industrial building panels
- Home appliance shells
- Automotive interior and exterior parts
- Furniture panels
- Electrical cabinet fabrication
- Decorative metal products
- Industrial equipment covers
５．Processing
- Cut-to-length sheet production
- Slitting into narrow strips
- Roll forming and profiling
- Bending and punching
- Panel fabrication
- Appliance shell processing
- Decorative metal forming
- Protective film lamination
６．Advantages
- 30–275 g/m² zinc coating improves corrosion resistance in industrial and outdoor environments.
- 10–25 μm top coating improves weather resistance, color retention, and surface durability.
- 5–7 μm back coating supports reverse-side protection during fabrication and installation.
- PE, SMP, HDP, and PVDF paint systems support different environmental durability requirements.
- RAL color system supports stable color consistency for architectural and industrial projects.
- 700–1250 mm width range supports roofing, cladding, appliance, and fabrication applications.
７．How to Choose
- For standard indoor applications, choose PE coating.
- For outdoor construction and industrial applications, choose SMP or HDP coating.
- For coastal or high UV environments, select PVDF coating and higher zinc coating levels.
- For architectural projects, confirm RAL color, gloss level, and coating system requirements.
- For automated production lines, confirm coil width, coil weight, and coil ID compatibility.
８．FAQ
Q1: What coating systems are available?
PE, SMP, HDP, and PVDF coating systems are available.
Q2: What is the zinc coating range?
The zinc coating range is 30–275 g/m².
Q3: What is the top coating thickness?
The top coating thickness is 10–25 μm.
Q4: What is the back coating thickness?
The back coating thickness is 5–7 μm.
Q5: What coil IDs are available?
508 mm and 610 mm coil IDs are available.
Q6: What industries commonly use this product?
Construction, architecture, appliance manufacturing, automotive, furniture, and industrial fabrication industries commonly use this product.
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