Color Coated Steel Coil refers to steel coils that are first coated with a metallic layer and then painted with a color finish. Widely used in engineering, construction, and many other fields due to its excellent rust resistance and decorative properties. As a professional manufacturer of color coated steel coils, Wanzhi Group offers products with various coating systems including Hot-Dip Galvanized, Electro-Galvanized, Galvalume, and Zinc-Aluminum-Magnesium. Leveraging capabilities in full coating coverage, complete color customization, and adaptation to all scenarios, we provide global customers with one-stop solutions for color coated steel coils.
Specifications
Parameter | Specification Range |
Thickness | 0.12mm – 2.0mm |
Width | 600mm – 1250mm (Customizable up to 1500mm) |
Coating Type | Hot-dip Galvanized, Electro-galvanized, Galvalume, Zinc-Aluminum-Magnesium |
Coating Weight | Z30-Z275 / AZ30-AZ150 / ZM30-ZM150 |
Coating Type (Paint) | PE, SMP, HDP, PVDF |
Color | Full RAL color range, supports custom sample matching |
Gloss Level | High Gloss (≥70°), Semi-matte (40-60°), Matte (≤30°) |
Film Thickness | Top: 15-35μm, Back: 5-15μm (Thicker options available) |
Color Coated Steel Coil - Products
Product Details
Color coated galvanized steel coil, made from hot-dip galvanized steel sheet (GI) with a coating weight of Z30-Z275. This cost-effective, versatile material offers good processability and is widely used in industrial plants, warehouses, appliance back panels, and interior decoration.
Color coated galvalume steel coil, made from 55% aluminum-zinc alloy coated steel sheet (GL) with a coating weight of AZ30-AZ150. It offers superior corrosion and heat resistance compared to PPGI, making it ideal for coastal construction, high-end commercial projects, and metal roofing/wall systems.
Color coated zinc-aluminum alloy steel coil (e.g., Zn-Al-Mg), processed using zinc-aluminum-magnesium alloy coated steel sheet (ZAM) with a coating weight of ZM30-ZM150. It inherits the self-healing properties and formability of ZAM steel and is the preferred material for automotive parts, agricultural facilities, solar panel supports, and buildings in extreme environments.
Color coated electro-galvanized steel coil, using electro-galvanized steel sheet (EG) as the substrate. Compared to hot-dip galvanized color coated steel, it offers superior flatness and paint adhesion. Suitable for applications with general corrosion resistance requirements such as electronic product housings, precision instruments, office furniture, and interior decoration.
Raw Materials
Substrate Type | Coating Composition | Core Characteristics | Application Areas |
Pure Zinc (Zn) | Economical, general-purpose, sacrificial anode protection | General industry, civil construction, home appliances | |
Pure Zinc (Thin coating) | Smooth surface, high precision, good for painting | Electronic products, precision parts, interior decoration | |
55%Al+43.4%Zn+1.6%Si | 2-6x more corrosion resistant than GI, excellent heat resistance | Coastal construction, industrial plants, roofing systems | |
Zn+Al+Mg | Self-healing cut-edges, 5-10x more corrosion resistant than GI | Automotive, agriculture, photovoltaics, extreme environments |
Paint Options
Coating Type | Characteristics & Positioning | Expected Lifespan | Recommended Applications |
Polyester (PE) | Economical, general-purpose, rich colors | 5-8 years | Indoor use, general industrial buildings, temporary structures |
Silicone Modified Polyester (SMP) | Better weather resistance than PE, good color retention | 10-12 years | Commercial buildings, general outdoor environments |
High Durability Polyester (HDP) | Performance between SMP and PVDF, good value | 15-20 years | Coastal buildings, public facilities, high-end factories |
Polyvinylidene Fluoride (PVDF) | Top-tier weather resistance, fade-resistant, self-cleaning | 20+ years | Landmark buildings, high-end curtain walls, harsh environments |
Color Coated Steel Coil - Factory
Wanzhi Group is a leading color coated steel coil factory in China with over a decade of experience in steel exports. Our factory (Shandong Wanzhi Steel) is equipped with 3 continuous color coating lines, boasting a monthly production capacity of 30,000 tons to meet the procurement needs of customers of various sizes.
Production Process
Uncoiling & Pretreatment: Chemical degreasing and conversion coating ensure substrate cleanliness and paint adhesion.
Primer Coating: Precision roller coating of epoxy/polyester primer, followed by baking and curing.
Topcoat Application: PE/SMP/HDP/PVDF coatings applied per order specifications, with precise control over film thickness and color consistency.
In-line Inspection: Real-time monitoring using colorimeters and thickness gauges to ensure stable quality.
Rewinding & Packaging: Automatic rewinding and multi-layer protective packaging.
Customization Features
Full Coating Coverage: One-stop availability of Hot-dip Galvanized, Electro-galvanized, Galvalume, and Zinc-Aluminum-Magnesium.
Size Customization: Thickness 0.12-2.0mm, Width 600-1500mm, customized as required.
Color Customization: Full RAL color range, supports custom color matching based on samples.
Appearance Customization: Supports High-gloss/Matte finishes, Wood grain/Stone grain printing, and Embossed patterns.
Processing Support: One-stop services including slitting, cut-to-length, profiling, and punching.
Full-process Quality Control: ISO9001, ISO14001 certified. Material certificates provided for each batch of color coils.
Global Standards: Compliant with EN, ASTM, JIS, GB and other major standards.
Flexible Cooperation: Small batch / sample orders supported, quick response.
Fast Delivery: Lead time 5-45 working days.
Color Coated Steel Coil - Performance & Application
Color Coated Steel Coil exhibits excellent performance and workability, playing a vital role in construction, transportation, home appliance manufacturing, agricultural farming, municipal engineering, and many other fields.
Performance Advantages
Performance | Description |
Corrosion Resistance | Dual protection from metallic coating and paint layer, suitable for harsh environments. |
Decorative | Rich colors, smooth surface finish, enhances building aesthetics. |
T-bend Ability | Up to 1T-3T |
Pencil Hardness | ≥F-H |
Impact Resistance | ≥9J (Direct impact) |
Processability | Suitable for stamping, bending, and profiling, adaptable to various processing methods. |
Weather Resistance | PVDF and HDP coatings offer excellent UV resistance and color fade resistance. |
Adhesion | Strong bond between coating and substrate achieved through pretreatment and primer systems. |
Application Scenarios
Application Field | Recommended Substrate | Recommended Coating | Key Requirements |
Industrial Plant Roof/Wall | Hot-dip Galvanized | PE/HDP | Economical, durable, high strength |
Coastal / High Salt Spray Buildings | Galvalume | HDP/PVDF | Extended weather resistance, edge protection |
Appliance Panels/Back Panels | Hot-dip/Electro-galvanized | PE/HDP/Film Laminating | Perfect surface quality, good formability |
Automotive Parts | Zinc-Aluminum-Magnesium | HDP | Self-healing cut-edges, precision forming |
Agricultural / Livestock Facilities | Zinc-Aluminum-Magnesium | HDP | Ammonia corrosion resistance, edge protection |
Interior Decoration / Ceilings | Hot-dip/Electro-galvanized | PE | Rich colors, cost control |
Landmark Building Curtain Walls | Galvalume | PVDF | Top-notch weather resistance, long-lasting color |
Packaging
Wanzhi Group’s color coated steel coils use a four-layer protective packaging system: Inner moisture barrier + High-strength waterproof kraft paper + Fully enclosed galvanized sheet metal + Galvanized steel strips evenly strapped circumferentially. This ensures the product remains undamaged during transport and storage. Additionally, we offer various outer packaging options including unmarked confidential packaging, printed packaging (with customer logo), and Wanzhi Group logo packaging.
Wanzhi Group’s Color Coated Steel Coil provides the most reliable color coated solutions for construction and manufacturing clients worldwide, backed by diverse coating options, a rich color palette, and consistent product quality. Welcome to leave us a message with your required substrate type (GI/GL/EG/ZM), coating weight, thickness, width, color (RAL number or sample), coating type (PE/SMP/HDP/PVDF), and quantity (tons) to request a free sample and a quotation!