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Help CenterDX51D DC01 Cold Rolled Hot Dipped Galvalume PVDF Color Coated Prepainted Steel Coil for Metal Roof
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Wuxi Yansheng Technology Co., Ltd. is a professional manufacturer with over 8 years of experience in the steel coil industry. Our DX51D DC01 Cold Rolled Hot Dipped Galvalume PVDF Color Coated Prepainted Steel Coil is engineered to deliver superior corrosion resistance and aesthetic durability for metal roofing applications. Combining the strength of cold-rolled steel with the protection of hot-dipped galvalume (aluminum-zinc alloy) and a premium PVDF paint system, this product ensures long-lasting performance even in harsh environments. Whether you need vibrant colors or high UV stability, our prepainted steel coil offers an ideal balance of form and function.
Key Features & Technical Specifications
Base Material Options: Available in DX51D (commercial quality) or DC01 (cold-rolled quality) steel, both providing excellent formability and strength for roll-forming metal roof panels.
Galvalume Coating: Hot-dipped aluminum-zinc alloy coating (55% Al, 43.4% Zn, 1.6% Si) offers 2-4 times better corrosion resistance than traditional galvanized steel. Average coating weight ranges from 30-180 g/m² (AZ30 to AZ180).
PVDF Paint System: Premium polyvinylidene fluoride resin (≥70% PVDF) with ceramic pigment for exceptional weatherability, UV resistance, and color retention. Typical coating thickness: 20-25 μm top coat + 5-10 μm primer.
Color Customization: Wide range of RAL colors and metallic finishes available. Custom color matching is also supported for project-specific requirements.
Surface Finishes: Options include smooth (standard), stucco-embossed, or matte texture to suit different architectural styles.
Excellent Flexibility: T-bend test ≤ 3T, impact resistance ≥ 9J, and pencil hardness ≥ 3H ensure the coating remains intact during bending, cutting, and installation.
Certifications & Standards: Our manufacturing process complies with international standards such as ASTM A653, JIS G3302, GB/T 2518, and EN 10143. The company holds multiple management system certifications (ISO9001, ISO14001, OHSAS18001, etc.) guaranteeing consistent quality.
| Parameter | Specification |
|---|---|
| Thickness (mm) | 0.12 – 2.0 (customizable) |
| Width (mm) | 600 – 1500 (coil form); slit widths available upon request |
| Coil Inner Diameter | 508 mm or 610 mm |
| Coil Weight (max) | 15 tons (customizable) |
| Zinc/Al-Zn Coating Mass | AZ30 – AZ180 g/m² (both sides) |
| Paint System | PVDF top coat + epoxy/polyester primer |
| Color Gloss (60°) | 30-70% (adjustable) |
| Salt Spray Test | ≥ 1000 hours (ASTM B117) |
Advantages for Metal Roof Applications
Long Service Life: PVDF coating resists chalking, fading, and chemical attack – typical warranty 20-30 years for color retention.
Energy Efficiency: Light-colored PVDF coatings reflect solar radiation, reducing building cooling costs by up to 15%.
Easy Maintenance: Self-cleaning properties due to smooth surface; dirt and grime are easily washed off by rain.
Lightweight & Strong: Cold-rolled steel core provides high load-bearing capacity while keeping the total roofing weight low.
Flexible Installation: Can be roll-formed on-site or pre-formed into standing seam, corrugated, or trapezoidal profiles.
Why Choose Wuxi Yansheng Technology?
Since 2017, our factory in Wuxi, Jiangsu has specialized in manufacturing high-quality coated steel coils. With an annual export value between US$50 million and US$100 million, we supply building material dealers, roofing contractors, and OEM manufacturers across North America, South America, Europe, Southeast Asia, Africa, and Oceania. Our 1,000-3,000 m² facility is equipped with modern slitting, coating, and packaging lines, ensuring consistent product quality and on-time delivery.
Trusted by global customers – we have shipped over 50,000 tons of prepainted steel coils worldwide. Our quality management systems (ISO9001, ISO14001, OHSAS18001, among others) are third-party certified, and every batch is tested for thickness, coating adhesion, color difference, and flexibility before dispatch. We also offer tailored packaging (waterproof paper, steel trays, fumigation-free wooden crates) to protect the coil during shipping.
Ready to start your roofing project? Contact our sales team for a competitive quotation on DX51D/DC01 PVDF prepainted galvalume coils. We provide free samples, technical datasheets, and color cards. Custom widths, thicknesses, and colors are available upon request. Choose Wuxi Yansheng – your reliable partner for premium metal roofing materials.
Frequently Asked Questions (FAQ)
Q1: What is the difference between DX51D and DC01 base steel?
A: DX51D is a commercial quality steel suitable for cold forming, while DC01 is a higher-quality cold-rolled steel with tighter tolerance and better surface finish. Both are perfectly suitable for metal roof applications – we can recommend the appropriate grade based on your forming requirements and budget.
Q2: Can I get a custom color that matches my building’s existing roof?
A: Yes. We support RAL, NCS, and custom color matching. Please provide a color code or a physical sample. Our lab can produce a trial coil for approval before bulk production.
Q3: How long does the PVDF coating last on a metal roof in coastal areas?
A: PVDF (polyvinylidene fluoride) offers excellent resistance to salt spray and UV. In coastal environments, our product maintains color and gloss for 20+ years. Actual lifespan depends on local climate, but typical warranty is 20 years for color and 5 years for film integrity.
Q4: What minimum order quantity (MOQ) do you require?
A: Standard MOQ is 10 tons per size and color. For trial orders, we can accept 5 tons. Sample coils (1-2 tons) are available with additional lead time.
Q5: Do you provide a coating weight certificate?
A: Yes. Every coil comes with a mill certificate showing coating weight (g/m²), thickness, mechanical properties, and chemical composition. Third-party inspection (SGS, BV) is also available upon request.
Q6: How long does production and shipping take?
A: For stock colors (white, gray, red, blue), production takes 7-10 days after deposit; for custom colors, 15-20 days. Shipping time depends on destination – typically 20-30 days by sea from Tianjin/Shanghai/Qingdao/Ningbo ports.
Q7: Is the coil suitable for standing seam metal roof systems?
A: Absolutely. Our PVDF coated galvalume coil has excellent flexibility and can be roll-formed into most standing seam profiles (SSA, trapezoidal, etc.). We recommend a minimum thickness of 0.5 mm for standing seam applications.
Q8: What packaging do you use for export?
A: We wrap each coil with anti-rust paper, plastic film, and steel strapping. For fragile PVDF surfaces, we add protective foam edge guards. The coils are then packed in steel frames or wooden crates (fumigation-free for international shipping).
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