The Premium Choice for Exterior Cladding & Sandwich Panels
Our pre-painted steel coil (PPGI) combines the strength of steel with the corrosion resistance of zinc and the beauty of organic paint. Using hot-dip galvanized steel coil as the substrate, we apply advanced coating technologies to deliver a product that offers superior weather resistance and vibrant aesthetics. It is the ideal raw material for the outer layers of high-quality EPS/PU sandwich panels and architectural roofing projects.
The pre-painted finish not only boasts vibrant colors and a smooth surface but also effectively resists corrosion, moisture, and environmental abrasion. Therefore, pre-painted steel coils are a reliable choice for outdoor building components and construction applications requiring long-term performance and low maintenance costs. We offer a wide range of RAL colors and custom coating systems to meet your project needs.
Widely used in the construction, industrial, and consumer goods sectors. Typical applications include metal roofing, exterior wall panels, gutters and downpipes, interior partitions, appliances, and decorative elements. Their adaptability and customizable color options make them ideal for balancing functionality and design.
Key Features
We offer a fully tailored solution to meet your specific architectural and manufacturing needs:
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Unlimited Colour Customisation: We support any colors based on the RAL color standard or your customer’s specific samples. Whether you need standard white-grey for industrial warehouses or vibrant colors for commercial buildings, we ensure excellent color retention and consistency.
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Customised Coating System: Durability is key. The Zinc coating and paint thickness are adjustable as requested. We can customize the coating structure and paint type to suit different environmental conditions, from standard inland areas to harsh coastal climates.
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Precision Manufacturing: We provide thickness and width as requested, ensuring seamless integration with your roll forming machines or sandwich panel lines. Our strict quality control guarantees accurate size and a perfect surface, free from bubbles, scratches, or peeling.
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Flexible Processing: To optimise your production efficiency, any length can be cut (for sheets), or coil weights can be adjusted to match your uncoiler’s capacity.
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Secure Export Packaging: We utilise fine packaging suitable for export, featuring vertical or horizontal packing with waterproof kraft paper, galvanised metal sheets, and steel bands to ensure the coils arrive without moisture damage or edge deformation.
Technical Specifications
| Parameter | Specification |
| Product Name | Pre-painted Galvanized Steel Coil (PPGI) |
| Base Metal | Hot Dip Galvanized Steel (GI) |
| Thickness | Customizable (e.g., 0.12mm – 1.2mm or as requested) |
| Width | Customizable (e.g., 600mm – 1250mm or as requested) |
| Zinc Coating | Customizable (Z40 – Z275) |
| Paint Coating | Top Side: 15-25 microns / Back Side: 5-10 microns (As requested) |
| Paint Type | PE (Polyester), SMP, HDP, PVDF |
| Color | All RAL Colors or Customer Sample Match |
| Coil ID | 508mm / 610mm |
| Hardness | Soft (CQ), Semi-hard, Full Hard (G550) |
Machine Video
Applications
Corrugated Roofing Sheets
Pre-painted steel coils can be easily roll-formed into various corrugated profiles, including trapezoidal and sinusoidal waveforms. These roofing panels are widely used in residential, commercial, and industrial buildings, offering excellent strength, weather resistance, and ease of installation.
Wall Facades
Designed specifically for architectural applications, pre-painted steel sheet cladding combines visual appeal with long-term color stability, making it an ideal choice for modern exterior cladding. The high-quality coating effectively resists fading caused by UV exposure, ensuring the building’s exterior remains beautiful and offering excellent weather resistance.
Rainwater Systems
Pre-painted steel gutters and downpipes feature a durable coating and excellent formability, ensuring longevity and consistent color for residential and commercial buildings. Their design prioritizes architectural aesthetics while offering reliable performance and customizable colors, allowing them to blend seamlessly with any architectural style.
Interior Decoration & Furniture
Pre-painted steel sheets are ideal for interior finishing and furniture, including ceilings, partitions, and door frames. They offer a clean, modern look while providing durable surface properties and easy maintenance, making them suitable for long-term indoor use.
White Goods & Home Appliances
Our color coating adhesive is specifically designed to meet the requirements of home appliance manufacturing, providing consistent quality, corrosion protection, and excellent surface performance for high-volume production. This product offers superior moisture resistance, ensuring long-lasting durability, a smooth surface, and a long service life in everyday home environments.
