PVDF Coated Aluminum Coil

Product Introduction

PVDF coated aluminum coil, also known as fluorocarbon coated aluminum coil, is a premium color-coated aluminum product. It is made from high-quality aluminum alloy as the base material, which undergoes degreasing and chemical treatment before being coated with polyvinylidene fluoride (PVDF) resin. The coil is then baked and cured at high temperatures to ensure a durable and uniform coating.

PVDF coated aluminum coils exhibit exceptional weather resistance, superior corrosion resistance, and excellent color stability. They can withstand harsh outdoor environments for more than 20 years without fading or chalking, making them ideal for architectural curtain walls, roof cladding, airport terminals, subway stations, bridge railings, and home appliance panels.

About PVDF Coating

PVDF, short for polyvinylidene fluoride, has a unique chemical structure. The carbon–fluorine (C-F) bond in its molecular chain has very high bond energy (485 KJ/mol). Since ultraviolet photons in sunlight cannot easily break C-F bonds, fluoropolymers are almost unaffected by sunlight. Therefore, aluminum coated with PVDF paint demonstrates excellent weather durability, superb color retention, acid and alkali resistance, and remarkable gloss retention, even under extreme outdoor exposure.

Performance Features of PVDF Color Coated Aluminum Coil

1. Exceptional Weather Resistance
PVDF coatings contain highly stable fluorocarbon bonds that resist UV radiation, acid rain, pollution, and extreme temperatures. They can maintain color and gloss for over 20 years in outdoor conditions without fading or chalking.

2. Excellent Corrosion Resistance
The coating effectively resists acids, alkalis, and salt spray, making it particularly suitable for coastal and industrial environments with high corrosion potential.

3. Low Maintenance
PVDF coated aluminum coils require minimal maintenance, significantly reducing lifecycle costs compared to other materials. Their smooth surface and weather resistance make cleaning easy and prevent corrosion or staining of the substrate.

4. Long-Lasting Color Stability
Thanks to highly stable pigments, the coating maintains its original color saturation and gloss even under prolonged sunlight exposure.

5. High Strength and Light Weight
Aluminum combines high strength with low density, ensuring easy installation while meeting wind and seismic resistance requirements for modern architecture.

6. Excellent Formability
The material has good flexibility and can be bent, punched, or formed into various decorative panel shapes.

7. Environmentally Friendly
PVDF coatings are free from lead, chromium, and other toxic substances, complying with RoHS environmental standards. The aluminum substrate is 100% recyclable, in line with modern green building principles.

Technical Specifications of PVDF Coated Aluminum Coil

Technical Test Data (PVDF Coating Performance)

Applications of PVDF Coated Aluminum Coil

• Architectural Curtain Walls: Skyscrapers, landmark buildings, stadiums, airports, train stations, and public facilities.

• Roof Systems: Ideal for metal roofing requiring high weather resistance and long service life.

• Transportation Facilities: Subways, light rail systems, highway noise barriers, and tunnel linings.

• Special Environments: Suitable for coastal areas, high-altitude regions, and acid rain zones.

• Composite Panels: Ideal surface layer for aluminum composite panels and honeycomb panels.

Recommended Alloy Series for Coated Aluminum

Coating Comparison: PVDF vs. PE vs. HDPE

FAQ

Q1: What's the main difference between PVDF coating and ordinary color coated aluminum?
A1: PVDF coating contains over 70% fluorocarbon resin, offering superior UV resistance, corrosion resistance, and self-cleaning ability. Regular PE coatings are mainly used indoors with lower weather resistance.

Q2: What is the expected service life of PVDF coated aluminum coil?
A2: Under normal conditions, PVDF coatings can last over 25 years without fading or chalking; in coastal or industrial areas, 15+ years is typical.

Q3: Can colors be customized for my brand or project?
A3: Yes. We can match RAL colors, gloss levels, and surface textures (e.g., wood grain, stone, brushed finishes) according to your sample or design.

Q4: Is PVDF coating resistant to high temperatures or acid-base environments?
A4: PVDF coatings withstand temperatures from -40°C to +120°C, and resist acid rain, salt spray, and industrial gases effectively.

Q5: What are the storage and transportation precautions?
A5: Keep the coils in a dry, ventilated area, away from sunlight and moisture. Use moisture-proof wooden pallets, and allow the material to acclimate at room temperature for 48 hours before use.

Q6: Do you provide samples or technical data sheets?
A6: Yes. A4-sized samples or detailed technical data sheets are available free of charge for customer testing and comparison.