700–1250mm Pre-painted Steel Coil with 30–275g/m² Zinc Coating and 3–8MT Coil Weight for Architectural and Industrial Applications
700–1250mm Pre-painted Steel Coil with 30–275g/m² Zinc Coating and 3–8MT Coil Weight for Architectural and Industrial Applications
１．Product Overview
Pre-painted steel coil is a color coated steel material manufactured with galvanized or galvalume steel substrate and continuous organic coating technology. The product combines corrosion protection, decorative appearance, and stable processing performance for architectural and industrial applications.
With zinc coating from 30–275 g/m² and coil weight from 3–8 MT, the product supports roofing panel production, wall cladding systems, appliance manufacturing, automotive parts, and industrial fabrication.
２．Technical Solution
The product uses multi-layer coating technology including zinc coating, chemical pretreatment, primer coating, top coating, and back coating to improve corrosion resistance and surface durability.
Top coating thickness of 10–25 μm improves weather resistance, UV stability, scratch resistance, and color retention. Back coating thickness of 5–7 μm improves reverse-side protection during transportation, storage, and installation.
PE, SMP, HDP, and PVDF paint systems support different environmental and service-life requirements for indoor, outdoor, industrial, and coastal 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 | Construction / Appliances / Automotive / Furniture |
４．Application
- Roofing sheet production
- Wall cladding systems
- Architectural façade panels
- Industrial building panels
- Home appliance shells
- Automotive components
- Furniture manufacturing
- Electrical cabinet fabrication
- Decorative metal panels
- Industrial equipment covers
５．Processing
- Roll forming and profiling
- Cut-to-length sheet production
- Slitting into narrow strips
- Bending and punching
- Panel fabrication
- Protective film lamination
- Industrial stamping
- Decorative metal processing
６．Advantages
- 30–275 g/m² zinc coating improves corrosion resistance for industrial and outdoor applications.
- 10–25 μm top coating improves weather durability, gloss retention, and surface stability.
- RAL color system supports stable color consistency for architectural and decorative projects.
- 3–8 MT coil weight supports continuous processing and industrial production efficiency.
- PE, SMP, HDP, and PVDF coatings support different service-life and environmental requirements.
- 700–1250 mm width range supports roofing, cladding, appliance, and fabrication applications.
７．How to Choose
- For indoor decorative applications, choose PE coating.
- For industrial and outdoor environments, select SMP or HDP coating.
- For coastal or high UV conditions, choose PVDF coating and higher zinc coating levels.
- For automated processing lines, confirm coil weight and coil ID compatibility.
- For architectural projects, confirm RAL color, gloss level, and paint system requirements.
８．FAQ
Q1: What paint 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 coil IDs are available?
508 mm and 610 mm coil IDs are available.
Q5: What industries commonly use this product?
Construction, appliances, automotive, furniture, and industrial fabrication industries commonly use this product.
Q6: What color system is used?
The product uses the RAL Color System for color consistency and customization.
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