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Help CenterPrepainted Galvanized Steel Coil Standard Compliant 5 Years Warranty Color Coated PPGI 0.3mm-1.5mm
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Hemaokang Steel (Shandong) Co., Ltd., located in Liaocheng, Shandong, China, is committed to supplying premium prepainted galvanized steel coils (PPGI) with reliable quality, competitive pricing, and efficient service. As a fast-growing supplier with an annual export value between US$50 million and US$100 million, we have established a solid reputation among global buyers in dozens of countries. Our standard compliant PPGI coils, backed by a comprehensive 5-year warranty and available in thicknesses from 0.3mm to 1.5mm, provide a smart solution for construction, renovation, and industrial production projects.
Product Overview
A prepainted galvanized steel coil, also referred to as color coated steel coil or PPGI, is manufactured by applying a high-performance paint system onto a hot-dip galvanized steel substrate. The zinc coating provides durable corrosion protection, while the outer paint film delivers attractive aesthetics and resistance to weathering, UV radiation, and minor mechanical impact. This dual-layer protection makes PPGI a cost-effective and versatile material for roofing sheets, wall cladding, sandwich panels, fabricated components, and home appliance housings. With standard compliant production practices and rigorous quality inspection at every stage, Hemaokang Steel ensures that each coil meets consistent dimensional, coating, and performance requirements.
Key Features
- Standard Compliant Manufacturing: Our production process is aligned with recognized international specifications, ensuring reliable dimensional tolerances, uniform coating thickness, and consistent mechanical properties across all coils.
- 5-Year Comprehensive Warranty: All PPGI coils are covered by a full 5-year warranty against coating weathering and zinc layer degradation under appropriate application and maintenance conditions, giving you long-term confidence.
- Wide Thickness Availability: Choose from 0.3mm to 1.5mm thickness to balance weight, strength, formability, and budget, whether you need lightweight sheets for roofing or sturdier profiles for structural use.
- Excellent Corrosion and Weather Resistance: The hot-dip galvanized zinc layer combined with a durable color coating creates a strong defense against moisture, saline environments, pollutants, and extreme temperature variations.
- Diverse Color and Finish Options: A broad range of RAL colors, including gloss, matte, and textured finishes, allows architects and fabricators to achieve the desired visual effect without sacrificing performance.
- Flexible Coil Dimensions: Coil sizes can be customized in terms of width and inner diameter, supporting downstream production efficiency and minimizing material waste.
- Superior Paint Adhesion and Formability: Advanced surface pretreatments and carefully controlled curing processes ensure firm adhesion of the paint film, preventing peel-off, chalking, or cracking even during bending, roll forming, or deep drawing.
- Cut-to-Length and Slitting Capability: Coils can be further processed into steel sheets or strips according to your specification before shipment, offering ready-to-use convenience.
- Stable Supply and Timely Delivery: Our production capacity and close relationship with upstream steel suppliers enable us to maintain steady inventory and arrange efficient shipments from Qingdao port.
Technical Specifications
| Parameter | Value / Option |
| Base material | Hot-dip galvanized steel |
| Thickness range | 0.3mm – 1.5mm |
| Coil width | 600mm – 1250mm, or customized |
| Paint system | Color coated; various paint types available upon request |
| Zinc coating weight | Range available upon request (e.g., Z40, Z80, Z120, Z180) |
| Color options | RAL colors, custom colors |
| Coil inner diameter (ID) | 508mm / 610mm, or customized |
| Coil outer diameter (OD) | Approx. 1200mm – 1500mm |
| Coil weight | Approx. 3 – 8 tons per coil |
| Warranty | 5 years |
| Standard | Standard compliant |
| Certificate | ISO9001 |
| Loading port | Qingdao, China |
Why Choose Our PPGI Coil
- Cost-effective performance: PPGI combines strength, appearance, and corrosion resistance at a highly economical cost, making it a smart choice for long-life steel components.
- Design flexibility: With various colors, finishes, thicknesses, and widths, our coil product can be adapted to roofing, walling, flooring, storage systems, ducting, and many other applications.
- Quality reliability: Under an ISO9001 quality management system, each production batch is inspected for coating thickness, adhesion, hardness, color consistency, and dimensional accuracy.
- Reduced maintenance: The protective coating lowers the need for frequent repainting or rust treatment, reducing lifecycle costs for building owners and manufacturers.
- Environmental advantage: Prepainted steel is recyclable, and its extended life span lowers material replacement frequency, supporting greener construction and manufacturing practices.
- On-time logistics: Our export team is experienced in handling documentation, packaging, and shipping for multimarket destinations, with flexible container loading solutions.
Typical Applications
Our prepainted galvanized coils are widely adopted in roofing and wall cladding systems, sandwich panels, ceiling and partition profiles, steel structures, agricultural buildings, warehousing facilities, transport vehicles, home appliances, furniture components, and decorative trim profiles. The material is also suitable for roll-formed profiles, corrugated sheets, tiles, and cut-to-length flat sheets.
Company Strength and Assurance
Hemaokang Steel (Shandong) Co., Ltd. operates with a professional team of 51 to 100 employees and has maintained an annual export value of US$50 million to US$100 million, a clear reflection of our steady production capacity and customer trust. Our products are delivered to major markets including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, East Asia, Western Europe, and Central America, among others. Backed by ISO9001 certification and our 5-year product warranty, we are well positioned to support long-term cooperation, bulk procurement, and customized steel solutions. Please contact us at any time for a quotation, technical consultation, or product samples. We value every inquiry and look forward to becoming your reliable steel supplier in China.
Frequently Asked Questions
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What thickness and width can I order for PPGI coils?
Our standard thickness range is 0.3mm to 1.5mm, with widths typically from 600mm to 1250mm. Custom sizes are available upon request based on your production needs. -
What colors are available?
We support a full range of RAL colors and can also develop custom colors based on your samples or color references. Gloss, matte, metallic, and textured finishes are available. -
How does the 5-year warranty work?
The warranty covers the performance of the coating system and zinc layer under normal application conditions, including resistance to peeling, chalking, and rust-through caused by material defects. Specific terms can be provided in the sales contract. -
Can I request samples before placing a bulk order?
Certainly. Standard sample preparation and shipping are available; please contact our sales team to discuss sample requirements and any associated costs. -
What are your packaging and shipping arrangements?
Our standard export packaging includes anti-rust paper, plastic film, steel protective rings, edge protectors, and wooden cases or steel frames. Shipments are arranged from Qingdao port with proper handling for sea freight or container transport. -
What is the typical lead time?
Lead time depends on the order quantity and customized options. Generally, production takes around 15 to 25 days after deposit confirmation, with exact timing confirmed during quotation. -
Do you accept small trial orders?
Yes, we understand the importance of testing a new supplier. Small trial orders are acceptable, and we will ensure the same quality and service level regardless of order size. -
Are your coils suitable for outdoor roofing applications?
Yes. Thanks to the dual protection of the galvanized zinc layer and durable color coating, our PPGI coils are well suited for roofing and exterior cladding. Choosing the appropriate paint system and zinc coating weight for your specific climate is recommended, and our technical team can assist with material selection.
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