Fin stock foil is a specialized aluminum foil used mainly in heat exchangers, air conditioners, refrigerators, and HVAC systems. It is designed for excellent thermal conductivity, corrosion resistance, and formability. Whether you need fin stock for residential AC systems or industrial cooling units, this material ensures reliable and efficient heat transfer.
Specifications of Fin Stock Foil
- Alloy: 1100, 8011, 3102, 3003
- Temper: O, H16, H28, H14
- Thickness: 0.105mm – 0.2mm
- Width: 40mm – 1450mm
- Surface: Plain, hydrophilic, or epoxy coated
- Coating Color: Blue, gold, green, transparent
- Coating Type: Anti-corrosion hydrophilic coating or epoxy resin
- Application Form: Coil (jumbo roll or slit roll)
Our aluminum fin stock foils meet industry standards for strength, performance, and quality.
Classification by Surface Treatment
Plain Fin Stock Foil
- No coating
- Used in clean and dry environments
- Excellent for general heat exchanger production
Hydrophilic Fin Stock Foil
- Coated to absorb moisture quickly
- Prevents water droplets from forming on the surface
- Extends product life and improves airflow in air conditioners
Epoxy Coated Fin Stock
- Enhanced resistance to chemical and salt corrosion
- Suitable for harsh environments or coastal areas
- Longer service life for HVAC units and appliances
Common Alloys
8011 Aluminum Fin Stock
- High strength and formability
- Most popular for air conditioning fins
1100 Fin Stock
- Commercially pure aluminum
- Best for basic heat transfer use
3003 Fin Stock
- Excellent corrosion resistance
- Suitable for high-humidity environments
3102 Fin Stock
- High thermal conductivity
- Common in energy-saving HVAC systems
Applications of Fin Stock Foil
Fin stock aluminum foil is widely used in thermal exchange systems, especially where moisture, corrosion, and airflow matter:
- ❄️ Air Conditioner Heat Exchangers
- 🧊 Refrigerator Cooling Units
- 🔄 Radiators and Evaporators
- 🌬️ HVAC Heat Transfer Coils
- 🏭 Industrial Cooling Systems
- 🔌 Dehumidifiers and Air Purifiers
- 🏠 Residential and Commercial HVAC
Fin stock foil plays a critical role in transferring heat efficiently, reducing energy consumption, and improving appliance durability.
Benefits of Aluminum Fin Stock Foil
- ✅ High thermal conductivity for fast heat transfer
- ✅ Lightweight and formable, easy to shape into fins
- ✅ Corrosion-resistant with optional coating
- ✅ Long service life in tough environments
- ✅ Eco-friendly and recyclable aluminum material
- ✅ Good surface flatness for precise fin formation
With hydrophilic or epoxy coatings, the foil also resists bacteria, dust, and salt air corrosion.
Available Sizes and Tolerances
We supply fin stock foil in jumbo rolls and slit rolls, with tight dimensional controls:
| Thickness | Width Range | Temper Options |
|---|---|---|
| 0.07 mm | 40–1450 mm | O, H22, H24 |
| 0.10 mm | 50–1300 mm | H22, H24, H26 |
| 0.15 mm | 60–1250 mm | H24, H26 |
Custom slitting and coating available based on your production line requirements.
Packaging & Delivery
We take care to package fin stock aluminum foils safely for domestic and international transport:
- 📦 Packed in wooden cases or steel pallets
- 🔁 With plastic film and desiccants for moisture protection
- 📄 Labeled with product info, lot number, and date
- 🚛 Export-ready packaging for coil and roll delivery
- 📥 MOQ-friendly for small trial orders
Delivery time typically ranges from 10–20 days, depending on quantity and customization.
Frequently Asked Questions (FAQ)
❓ What is fin stock foil used for?
Fin stock foil is used to manufacture the fins in heat exchangers. These fins increase surface area, improving heat transfer in ACs, refrigerators, HVAC coils, and radiators.
❓ What is hydrophilic coating on fin stock?
A hydrophilic coating allows water to spread evenly on the foil surface. It prevents water droplets from forming, reducing noise and increasing airflow efficiency.
❓ Which aluminum alloy is best for fin stock?
8011 and 3102 are the most common alloys used in HVAC and refrigeration due to their high strength, corrosion resistance, and heat transfer performance.
❓ Can I get fin stock foil in small quantities?
Yes. We support custom and low-MOQ orders for testing or trial production. We can also provide free samples on request.
❓ What coating colors are available?
We offer blue, gold, green, and transparent coatings, commonly used in air conditioners and refrigerators to enhance aesthetics and performance.
Why Choose Us for Fin Stock Foil?
- 🏭 Factory-direct supply with full production control
- 📈 ISO-certified quality system for every batch
- 🧪 Coating lab & testing for color, corrosion, and adhesion
- ⚙️ Custom slitting and coating services
- 🌎 Worldwide shipping with flexible MOQ
We are a reliable supplier for OEM HVAC component manufacturers, appliance factories, and insulation material distributors.
Contact Us
Looking for a trusted supplier of fin stock aluminum foils?
📧 Email: jane@wwaluminum.com
📱 WhatsApp: +86 15736973771
🏭 Worthwill Aluminum – Quality You Can Trust
Contact us for technical support, pricing, and free samples today!
