PVDF Coated Aluminum
Worthwill's PVDF coated aluminum (also known as PVDF prepainted aluminum) offers customizable colors and a wide range of premium products. Whether you need PVDF aluminum sheets, coils, composite panels, or extrusion profiles, we provide durable and perfect solutions for all your architectural and industrial needs.
- Product type:
- Coil, Sheet, Composite Panel (ACP), Extrusions.
- Alloy:
- 1060, 3003, 3004, 3005, 3105, 5005, 5052, etc.
- Temper:
- H12, H14, H16, H18, H22, H24, H26, H42, H44, etc.
- Thickness:
- 0.1mm - 6.0 mm (Roller coating / Powder coating customized).
- Width:
- 30mm – 2,200mm.
- Coating Type:
- PVDF (Polyvinylidene Fluoride).
- Coating Thickness:
- Min 25 μm (2-layer) / Min 34 μm (3-layer).
- Colors:
- Regal blue, regal red, terra cotta, classic green, matte black, sandstone almond, regal white, medium bronze, custom RAL colors, etc.
PVDF Prepainted Aluminum Overview
What is PVDF Coated Aluminum?
PVDF coated aluminum, widely known as PVDF prepainted aluminum, is an aluminum base material coated with polyvinylidene fluoride (PVDF) resin. It is globally recognized for its excellent weather resistance, corrosion protection, and outstanding color retention, making it the top choice for architectural facades, roofing, and aerospace applications.
The Science Behind PVDF Coating
Polyvinylidene Fluoride (PVDF) is part of the fluoropolymer family. It is a highly non-reactive thermoplastic resin-based coating system designed specifically for metal surfaces. It delivers exceptional chemical resistance, dirt repellency, and UV stability, ensuring the building's exterior looks new for decades.
Features and Benefits of PVDF Aluminum
- Chemical Stability: Highly non-reactive, offering superior resistance to acids, alkalis, solvents, and industrial pollutants.
- Weatherability: Exceptional UV-resistance, salt spray-resistance, and humidity-resistance (tested for over 4,000 hours), guaranteeing color stability and chalking resistance for up to 20-30 years.
- Fire Safety: Self-extinguishing with low smoke emission, strictly compliant with international building fire safety codes.
- Mechanical Performance: Grade 0 adhesion (no peeling during bending), high impact resistance, and pencil hardness ≥1H to 2H.
Premium Paint Brands We Use
To guarantee the longest lifespan, we cooperate with world-class paint suppliers including: PPG, AKZONOBEL, NIPPON, JOTUN, KFCC, KGE, SKK, and First NMT.
PVDF Coated Aluminum Product Range
PVDF Prepainted Aluminum Sheet
- Alloy: 1060, 3003, 3004, 3005, 3105, 5005, 5052.
- Coating Thickness: ≥ 25 μm.
- Thickness: 0.6mm – 5.0mm (Custom powder coating up to 6mm).
- Width: 30mm – 2,200mm (customizable).
- Length: 500mm - 12,000mm.
PVDF Prepainted Aluminum Coil
- Alloy: 1060, 3003, 3004, 3005, 3105, 5005, 5052.
- Coating Thickness: ≥ 25 μm.
- Thickness: 0.1mm – 3.0mm (Standard coil).
- Width: 30mm – 2,200mm.
- Inner Diameter (ID): 305mm, 405mm, 505mm, 610mm.
PVDF Aluminum Composite Panel (ACP)
- Structure: Two aluminum sheets sandwiching a polyethylene core, finished with PVDF Kynar 500 paint.
- Panel Thickness: 3mm – 6mm (4mm highly recommended).
- Alu Skin: 0.21mm – 0.50mm (0.30mm/0.40mm recommended).
- Standard Sizes: 1220mm × 2440mm, 1500mm × 3050mm.
- Colors: 45 standard colors; custom metallic, gloss, or matte.
PVDF Solid Aluminum Cladding Panel
- Total Thickness: 2.0mm, 2.5mm, 3.0mm, up to 6mm.
- Dimensions: Width 1,000mm – 2,000mm, length up to 6,500mm.
- Colors: Available in RAL colors or custom architectural colors (e.g., Metallic Silver, Champagne Gold).
- Fire Rating: Class A1/A2 Non-combustible (Complies with GB 8624-2006).
PVDF Coated Aluminum Extrusions
-
Coating Thickness:
- 2-layer (primer + topcoat): ≥ 25μm.
- 3-layer (primer + color + clear): ≥ 34μm.
- Salt Spray Resistance: More than 4,000 hours.
- Adhesion: Grade 0 (no peeling or cracking).
- Color Options: Solid, metallic, pearlescent; matte or gloss finishes.
Customizable PVDF Color Chart
PVDF finished aluminum sheets and coils from Worthwill offer a vast range of color coatings including solid colors, metallic colors, and pearlescent finishes. Popular choices include Regal White, Pearl Gray, Surrey Beige, etc. All colors can be matched to your specific RAL or Pantone codes.
Regal White
Reflective White
Warm White
Pearl Gray
Desert Sand
Surrey Beige
Slate Gray
Royal Blue
Terra Cotta
Cypress Green
Dark Bronze
Brite Red
Charcoal
Midnight Black
Galvalume (Metallic)
The Manufacturing Process of PVDF Prepainted Aluminum
Worthwill operates advanced continuous roll coating lines (for flat surfaces like coils and thin sheets) and powder coating facilities (for thick panels, extrusions, and complex shapes).
- Surface Prep: Deep degreasing, acid cleaning, and chemical conversion treatment to ensure maximum paint adhesion.
- Primer Application: Applying an anti-corrosion primer to stabilize the aluminum substrate.
- Topcoat Application: Applying the PVDF color resin (containing ≥ 70% fluorocarbon resin) for superior weather and wear protection.
- Clear Coat (Optional): A transparent protective layer is added for metallic colors to prevent oxidation and boost weather resistance.
- Curing: High-temperature baking (230°C–250°C for roll coating) to fully bond the molecular structure of the PVDF paint.
PVDF vs. Other Resin-Based Coatings
Understanding the difference between PVDF prepainted aluminum and other painted metals helps in choosing the right material for your project.
| Resin Type | Characteristics & Lifespan | Best Applications |
|---|---|---|
| PVDF (Fluorocarbon) | Superior UV & weather resistance, excellent color retention. Lifespan: 20–30+ years. | High-end architecture, exterior facades, harsh environments. |
| SMP (Silicone Modified Polyester) | Good abrasion resistance and hardness, cost-effective. Lifespan: 10–15 years. | Industrial/agricultural buildings, roofing. |
| PE (Polyester) | Highly flexible, wide color range, budget-friendly. Lifespan: 7–10 years. | Indoor decoration, signage, residential appliances. |
| FEVE | High gloss finish, PVDF-level weather resistance (Higher cost). | Premium glossy decoration, bridge coatings. |
| PVC / Plastisol | Thick coating, highly anti-corrosive, but poor UV resistance. | Cold storage panels, heavy industrial roofing. |
Testing Standards & Results
Durability & Weathering
- Salt Spray: Passes 4,000-hour neutral salt spray test (blistering rating < 2S3, no creeping from scribe).
- Humidity Resistance: Passes 4,000-hour humidity aging; no blistering/cracking after 1,000 hours.
- UV Resistance: 2,000 hours of UVA-340 UV exposure (ASTM D4214); chalking rating ≤1, no blistering or cracking.
Mechanical Performance
- Hardness: Pencil hardness ≥ 1H to 2H.
- Impact Resistance: 9J reverse impact test (no cracking or peeling of paint).
- Flexibility: 0T to 3T bend test (depending on alloy, no coating peel-off).
Protective Performance & Safety
- Adhesion: Cross-cut test (Grade 0, excellent adhesion).
- Boiling Water Resistance: 2 hours in 100°C water (no fading, blistering or cracking).
- Fire Rating: Class A1/A2 (GB 8624-2006, non-combustible material).
Liquid PVDF Coil Coating vs. Powder Coating
| Factor | PVDF Liquid Coating (Roll Coating) | Aluminum Powder Coating |
|---|---|---|
| Weather Resistance | Exceptional (20+ years), extreme UV and fade resistance. | Good (7–15 years), prone to fading under intense UV over time. |
| Coating Thickness & Uniformity | Thin & highly uniform (25-35μm), perfect for flat sheets and coils. | Thick (60-100μm), great for hiding surface defects and complex shapes. |
| Cost | Moderate to High (Uses expensive Kynar 500 resin). | Lower to Moderate (Highly efficient, zero solvent waste). |
| Ideal Applications | Exterior building facades, ACP panels, metal roofing, curtain walls. | Aluminum extrusions, window frames, fencing, indoor decor. |
Applications of PVDF Prepainted Aluminum
Due to its unmatched durability, PVDF coated aluminum is the material of choice for large-scale commercial and industrial projects where long-term performance is mandatory.
- Architecture & Construction: Exterior curtain walls, Aluminum Composite Panels (ACP), honeycomb panels, and structural roofing systems.
- Industrial Environments: Chemical plant roofing and cladding, power stations, and facilities exposed to corrosive gasses.
- Transportation & Infrastructure: Airport terminals, high-speed rail stations, highway toll booths, and tunnel wall panels.
- Public Facilities: Hospitals, stadiums, and exhibition centers where low maintenance and high aesthetic value are required.
Why Choose Worthwill’s PVDF Coated Aluminum?
Worthwill Aluminium combines premium aluminum base metal with world-class PVDF coatings to deliver products that withstand the test of time. Our prepainted aluminum materials provide the perfect balance of lightweight strength, excellent thermal conductivity, and unbeatable weather resistance.
- Certified Quality: We use authentic PVDF resin (min 70% fluorocarbon) to ensure stable, anti-fading performance.
- Premium Paint Brands: Sourced strictly from global leaders like PPG, Nippon, and AkzoNobel.
- Fully Customizable: Tailored alloys, tempers, widths, and precise color-matching for your brand.
- Solid Warranty: We offer a 20-year warranty on PVDF coatings, giving you total peace of mind.
