PVDF Color Coated Steel Coil - Product Description for Foreign Trade Websites

1. Core Product Positioning

2. Substrate Selection: Quality Base, Customizable Options

1. Hot-Dip Galvanized Substrate
   • Process: Continuous hot-dip galvanizing creates a dense zinc-iron alloy layer for strong adhesion and peel resistance.
   • Customization: Zinc coating thickness ranges from 80g/m² to 275g/m²; 275g/m² is ideal for coastal high-salt areas.
   • Advantages: Yield strength 250–550MPa, excellent impact and deformation resistance, suitable for load-bearing roofing to cut reinforcement costs.
2. Hot-Dip Galvalume Substrate
   • Process: 55% aluminum + 43.5% zinc + 1.5% silicon alloy coating via hot-dip method forms a dual protective barrier.
   • Advantages: 2–6 times more corrosion-resistant than galvanized substrates of the same zinc thickness; heat-resistant up to 315℃ for tropical exposure; smooth surface boosts coating adhesion and service life.

3. PVDF Coating: Top-Tier Weather Resistance

Core Performance

• Long-Lasting Weather Resistance: ≥70% fluorine content ensures 20–30 years of UV resistance, with gloss loss ≤5% and fading grade ≤1.
• Corrosion & Stain Resistance: Low surface tension enables self-cleaning; acid/alkali/salt spray resistant, passing 5000-hour neutral salt spray tests without blistering or rust.
• Wear & Scratch Resistance: Hardness ≥2H prevents coating damage during transportation and installation, reducing maintenance costs.

Performance Comparison (Southeast Asia Adaptability)

4. Coating Process: Precision & Consistency

1. Pretreatment: Degreasing → washing → pickling → phosphating → passivation removes impurities and forms a dense passivation film to enhance coating adhesion.
2. Coating: Roller + electrostatic spraying ensures precise thickness: 20–25μm (topcoat) + 5–7μm (primer)—no sagging or missed coating.
3. Curing: High-temperature baking at 230–250℃ fully cross-links PVDF molecules, creating a tight protective layer that meets international standards.

5. Customization Services: Flexible, Cost-Effective Solutions

• Specifications: Custom thickness 0.3–1.2mm, width 914–1250mm, and slitted lengths to reduce on-site cutting waste.
• Colors: Match any RAL/Pantone color; bulk order color consistency error ≤0.5 grade.
• Packaging: Export-standard moisture-proof packaging (plastic film + anti-rust paper + steel strips) for sea freight; supports custom logo printing.
• Delivery: In-stock items ship in 7 days; custom orders deliver in 15–20 days to meet urgent project timelines.

6. Certification Compliance: Smooth Procurement & Quality Assurance

• System Certifications: ISO 9001, ISO 14001, ASTM.
• Product Certifications: SGS salt spray test, BV quality, Malaysia SIRIM, Indonesia SNI.
• Environmental Compliance: RoHS-certified, heavy metal and formaldehyde-free—safe for food warehouses and civil buildings.

7. Performance Matching: Targeted for Southeast Asian Scenarios