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Help CenterPPGI Prepainted Galvanized Coil, 0.3mm-2.0mm Gauge, 40-120g/m2 Zinc Coating, Anti-Corrosion for Construction
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Hemaokang Steel (Shandong) Co., Ltd. takes pride in offering our high-quality PPGI Prepainted Galvanized Coil – a preferred choice for modern construction projects worldwide. With a thickness range of 0.3mm to 2.0mm and zinc coating from 40 to 120 g/m², this product combines excellent anti-corrosion performance with aesthetic versatility. Our state-of-the-art production lines and strict quality control ensure consistent performance, making it ideal for roofing, wall cladding, and structural applications. Backed by an annual export value exceeding US$50 million and ISO9001 certification, we deliver reliability and value to every shipment.
Our PPGI coil is manufactured using prime-grade cold-rolled steel with a hot-dip galvanized substrate, followed by advanced prepainting processes. The result is a product that resists rust, UV degradation, and harsh weather conditions, while offering a wide palette of colors and finishes. Below we detail the key features and benefits.
Key Features & Technical Specifications
- Thickness Range: 0.3mm – 2.0mm (tailored to your requirement)
- Zinc Coating Weight: 40 – 120 g/m² (dual-sided, Z80 – Z275 equivalent)
- Coil Width: 600mm – 1500mm (custom slitting available)
- Paint System: Polyester, PVDF, SMP, or HDP (choose based on environment)
- Color Options: RAL, NCS, or custom colors (gloss, matte, textured)
- Anti-Corrosion Layers: Zinc primer + topcoat + back coat (optional)
- Mechanical Properties: Yield strength 250-350 MPa, elongation ≥20%
- Packing: Standard seaworthy with anticorrosion paper, steel banding, and waterproof wrapping
| Parameter | Specification |
|---|---|
| Substrate | Hot-dip galvanized steel (DX51D+Z, DX52D+Z, etc.) |
| Zinc coating | 40-120 g/m² (both sides) |
| Paint thickness | Topcoat: 15-25 µm; Backcoat: 5-10 µm |
| Temperature resistance | Up to 120°C (PE), 150°C (PVDF) |
| Salt spray test | ≥500 hours (depending on coating) |
Advantages & Customer Benefits
Our PPGI coil offers exceptional anti-corrosion protection thanks to the dual barrier of zinc and paint. The flexible gauge (0.3-2.0mm) allows it to be used for both lightweight roofing and heavy structural panels. The wide color range enables architects to achieve desired aesthetics without sacrificing durability. Additionally, the product is easy to form, cut, and install, reducing labor costs on site. With guaranteed flatness and consistent paint adhesion, you can expect fewer rejects and longer service life. For projects in coastal or industrial environments, our optional PVDF or HDP coatings provide extra resistance to chemical attack and UV fading.
Every coil undergoes rigorous inspection including thickness measurement, color uniformity check, and adhesion test (T-bend, impact). We also offer custom slitting and cut-to-length services to meet your exact dimensions. The product is packed in multiple layers to prevent scratches and moisture damage during transit.
Trust & Company Credentials
Hemaokang Steel (Shandong) Co., Ltd. was established in 2025 and has quickly grown to export US$50 million – US$100 million annually. Our team of 51-100 employees is dedicated to steel processing and trade. We hold ISO9001:2015 certification, which underscores our commitment to quality management. Our products are shipped to major markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. With a strategic location in Liaocheng, Shandong, we enjoy convenient logistics to major ports. We invite you to contact us for a quotation, sample request, or technical consultation. Choose Hemaokang for reliable performance and professional service.
Frequently Asked Questions
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Q: What is the minimum order quantity (MOQ) for PPGI coil?
A: Our MOQ is typically 20 metric tons per size and color, but we can discuss smaller trial orders for new customers. -
Q: Can you provide custom colors and specific RAL numbers?
A: Yes, we can match any RAL or NCS code. Custom colors may require a minimum quantity and lead time for color formulation. -
Q: How long is the coating guarantee?
A: The warranty period depends on the paint system and environment. For standard polyester, we offer a 10-year limited warranty against peeling and chalking. PVDF offers up to 20 years. -
Q: What is the difference between PPGI and PPGL?
A: PPGI uses a galvanized (zinc) substrate, while PPGL uses Galvalume (aluminum-zinc alloy). PPGI is more common for general construction; PPGL offers better corrosion resistance in acidic environments. -
Q: Do you provide samples before bulk order?
A: Yes, we can provide A4 samples or small coil samples. The sample cost is free for established inquiries, but the shipping cost is borne by the buyer. -
Q: How do you ensure the product does not get scratched during transportation?
A: We use interleaving paper, steel banding, and protective corner beads. For fragile finishes, we can add a plastic film layer upon request. -
Q: What is the typical lead time for a 20ft container?
A: For standard colors and dimensions, lead time is 15-20 days after deposit. Custom colors may add 5-10 days. -
Q: Are your coils suitable for direct exposure in coastal areas?
A: Yes, we recommend our PVDF or HDP coating systems for coastal environments. They offer superior resistance to salt spray and UV. We can provide test data upon request.
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