RAL Color Pre-coated Corrugated Board With HDP Coating 0.4mm Thick Galvanized Steel Long Life
Product Spotlights
Hemaokang Steel (Shandong) Co., Ltd. is a professional manufacturer of high-quality pre-coated steel products. With an annual export value of US$50 million – US$100 million and a dedicated team of 51–100 employees, we are committed to delivering reliable and durable building materials. Our RAL Color Pre-coated Corrugated Board with HDP Coating 0.4mm Thick Galvanized Steel is designed to offer exceptional corrosion resistance, aesthetic appeal, and long service life for various construction projects. Whether you need roofing panels, wall cladding, or industrial enclosures, this product is the ideal choice for both commercial and residential applications.
Key Features & Technical Specifications
- RAL Color Options: Available in a wide range of RAL colors (e.g., RAL 3000, RAL 5015, RAL 9006) to match your architectural design requirements. Custom colors are also available upon request.
- HDP Coating: High Durability Polyester (HDP) coating provides superior UV resistance, color retention, and weather resistance compared to standard polyester. It ensures the board maintains its appearance for decades.
- Galvanized Steel Substrate: The base material is high-quality galvanized steel (Z275 or Z300 grade) offering excellent corrosion protection. The zinc layer acts as a sacrificial anode, preventing rust even in harsh environments.
- 0.4mm Thickness: This optimal thickness strikes a balance between strength and weight, making it easy to handle and install while maintaining structural integrity.
- Corrugated Profile: The classic corrugated design increases rigidity and load-bearing capacity, suitable for roofing and wall applications with spans up to 1.5 meters (depending on gauge and support spacing).
- Long Service Life: With proper installation and maintenance, the expected lifespan can exceed 25 years in moderate climates, thanks to the combination of galvanized substrate and HDP coating.
- Easy Installation: Lightweight and pre-cut to length, the panels can be installed quickly using standard screws and fasteners, reducing labor costs.
- Fire Resistance: Steel is non-combustible, meeting most building code requirements for fire safety.
| Parameter | Specification |
|---|---|
| Base Metal | Hot-dip galvanized steel (DX51D+Z, Z275-Z300) |
| Thickness (Total) | 0.4mm ±0.02mm (including coating) |
| Coating Type | HDP (High Durability Polyester) – 20-25μm |
| Color Range | All RAL colors (customizable) |
| Effective Width | 900mm, 1000mm, or custom |
| Length | 1m – 12m (or cut to length) |
| Corrugation Pitch | 76mm / 80mm / 100mm (optional) |
| Membrane | Protective PE film on one side (optional) |
Advantages for Your Business
- Low Maintenance: The HDP coating resists fading, chalking, and peeling, reducing the need for frequent repainting.
- Cost-Effective: Compared to other premium coatings like PVDF, HDP offers a better price-performance ratio while still delivering excellent durability.
- Versatile Applications: Suitable for roofing, wall cladding, ceilings, portable buildings, prefab houses, and agricultural sheds.
- Eco-Friendly: Steel is 100% recyclable, and our production process complies with environmental standards.
- Reliable Supply: With our large production capacity and direct factory pricing, we ensure timely delivery and competitive quotes.
Our company, Hemaokang Steel (Shandong) Co., Ltd., has been serving global customers since 2025 with a strong focus on quality and customer satisfaction. We are proud to hold ISO9001 certification, which guarantees consistent product quality through strict process control. Our annual export value of US$50 million – US$100 million reflects our reliability and scale. We export to major markets including North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. All shipments are handled from Qingdao Port, ensuring efficient logistics. We invite you to contact us for a quotation or sample – let us provide you with a roofing solution that lasts.
Frequently Asked Questions (FAQ)
-
Q: What does HDP coating mean?
A: HDP stands for High Durability Polyester. It is a premium coating that offers better UV resistance, color retention, and weather durability than standard polyester, making it ideal for long-term outdoor use. -
Q: Can I get any RAL color?
A: Yes, we can match any RAL color code. Please provide the specific RAL number when placing your order. Custom colors are also available. -
Q: What is the expected lifespan of this corrugated board?
A: With proper installation and maintenance, the service life can exceed 25 years in normal atmospheric conditions. Harsh coastal or industrial environments may reduce lifespan slightly, but the HDP coating provides excellent protection. -
Q: Is the thickness of 0.4mm sufficient for roofing?
A: 0.4mm is suitable for many roofing applications, especially when the purlin spacing is not too wide (e.g., up to 1.2m). For higher snow loads or wider spans, we recommend a thicker gauge (e.g., 0.5mm or 0.6mm) – please consult our technical team. -
Q: Do you offer custom lengths and widths?
A: Yes, we can cut the panels to your exact length (up to 12m) and produce custom widths. Please specify your requirements during the inquiry. -
Q: What is the minimum order quantity (MOQ)?
A: MOQ is typically 100 tons for standard colors, but we can be flexible for trial orders or custom colors. Contact us for details. -
Q: How do you pack the panels for export?
A: Panels are packed in bundles with steel strapping, wrapped in waterproof paper, and loaded in containers. Protective edge strips are used to prevent damage during transit. -
Q: Do you provide samples?
A: Yes, we offer free samples (usually 1-2 pieces) with the buyer covering the shipping cost. Please send your request to our sales team.
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