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Help CenterPrepainted Galvanized Steel Coil 0.12mm-0.8mm Thickness Z60-Z275 Zinc Coating for Roofing
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – your trusted partner in high-quality steel products. Our Prepainted Galvanized Steel Coil, with thickness ranging from 0.12mm to 0.8mm and zinc coating from Z60 to Z275, is specifically designed for roofing applications. Manufactured under strict ISO9001 quality management, this product combines superior corrosion resistance, excellent color retention, and cost-effective performance. With an annual export value exceeding US$50 million and a global reach spanning North America, Europe, Asia, and beyond, we are committed to delivering reliable solutions that meet your construction needs.
Our prepainted galvanized steel coil is produced using advanced continuous hot-dip galvanizing and coating lines. The base material is galvanized steel with a precisely controlled zinc layer, followed by a multi-layer paint system that ensures durability and aesthetic appeal. Whether you require a standard polyester coating or a premium PVDF finish, we offer customization options to match your project specifications. The product is ideal for roof sheets, wall panels, and other architectural applications where longevity and appearance matter.
Key Features & Benefits:
- Wide thickness range (0.12mm – 0.8mm) – Suitable for various roof profiles, from light residential to heavy industrial structures.
- Zinc coating from Z60 to Z275 – Provides flexible corrosion protection based on environmental exposure; higher zinc coating available upon request.
- High-quality paint system – Polyester, PVDF, or SMP coatings offer excellent UV resistance, color stability, and formability without cracking.
- Customizable colors and gloss levels – Choose from RAL colors or provide your own sample for color matching; gloss levels from 20% to 80%.
- Easy processing – The coil can be cut, punched, bent, and roll-formed with minimal surface damage, ensuring smooth installation.
- Cost-effective solution – Compared to field painting or post-treatment, prepainted coils reduce labor and material waste, offering faster project completion.
Technical Specifications (Typical Parameters):
| Parameter | Value |
|---|---|
| Thickness | 0.12mm – 0.8mm (tolerance: ±0.01mm) |
| Zinc Coating (both sides) | Z60 – Z275 g/m² |
| Width | 900mm – 1250mm (customizable up to 1500mm) |
| Coil Inner Diameter | 508mm / 610mm |
| Coil Weight | 3 – 8 tons per coil |
| Coating Type | Polyester, PVDF, SMP (optional) |
| Color Range | RAL colors, metallic, or custom |
| Standard | ISO9001, ASTM A755, JIS G3312 (available upon request) |
Why Choose Our Prepainted Galvanized Steel Coil?
- Strict quality control from raw material to finished product: each coil undergoes chemical composition analysis, coating thickness test, and mechanical property verification.
- Flexible order quantities: from small trial orders (minimum 5 tons) to large container loads, we accommodate your procurement plan.
- Reliable packaging: anti-rust paper, plastic film, and steel banding ensure the coil arrives in perfect condition during sea or land transport.
- Experienced team: with 51-100 employees and decades of combined industry experience, we provide technical support and after-sales service.
Trust & Credentials
Hemaokang Steel (Shandong) Co., Ltd. was established in 2025, yet we have quickly built a strong reputation in the global steel market. Our annual export value exceeds US$50 million, and we serve customers in North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and many other regions. We hold ISO9001 certification, which underscores our commitment to quality management systems. Our factory in Liaocheng, Shandong benefits from convenient logistics and abundant raw material supply. We invite you to experience our professionalism – every inquiry is treated with honesty and efficiency. Contact us today for a quote or free sample, and let us support your next roofing project with a premium prepainted coil that delivers performance and value.
Frequently Asked Questions (FAQ)
- What is the difference between Z60 and Z275 zinc coating? Z60 indicates 60 g/m² of zinc per side (total both sides), offering basic corrosion protection for dry indoor environments. Z275 provides 275 g/m² per side, ideal for harsh coastal or industrial areas with high humidity. We can supply any coating weight within this range.
- Can I get a specific RAL color not listed? Yes, we can match any RAL color code or even your physical sample. We offer fast color development (3-5 days) and approval process.
- What is the minimum order quantity (MOQ)? For standard thickness and coating, MOQ is 5 tons per color. For customized specifications, MOQ may be 10-15 tons. Please contact us for exact details.
- How long is the delivery time? Typically 15-25 days after receiving deposit or L/C. For urgent orders, we can expedite production within 10-12 days subject to availability.
- What packaging do you use to prevent damage? Each coil is wrapped with anti-rust paper, then sealed with a plastic film, followed by steel banding and protective edge rings. For sea freight, we add an additional waterproof layer.
- Is the product suitable for both residential and commercial roofing? Absolutely. The thickness range 0.12mm-0.8mm covers thin metal roofing for houses (0.12-0.3mm) and thicker panels for industrial buildings (0.4-0.8mm). The zinc coating and paint can be tailored to the required durability.
- Do you provide third-party inspection? Yes, we can accept inspection by SGS, BV, or other recognized agencies at buyer's cost. We also provide mill test certificates with each shipment.
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