Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of Hydrophilic Aluminum Foil Jumbo Roll for HVAC in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
Hydrophilic Aluminum Foil for HVAC Heat Exchanger Fins
8011 / 1100 / 3102 Hydrophilic Aluminum Fin Stock – Custom Coated Jumbo Rolls
Xi'an Dongmeng Group Co., Ltd. supplies hydrophilic aluminum foil for air conditioning, refrigeration and HVAC heat exchanger manufacturing. Our product range includes 8011, 1100 and 3102 aluminum fin stock with hydrophilic surface treatment, designed for the production of formed aluminum fins used in evaporators, cooling coils and other heat exchange equipment.
Unlike conventional bare aluminum fin stock, hydrophilic coated aluminum foil has a specially treated surface that promotes water spreading during condensation. When properly matched to the heat exchanger design, this helps control water accumulation between fins and supports condensate drainage under wet operating conditions.
We support industrial buyers with alloy and temper selection, customized coil dimensions, coating requirements, slit-width preparation, technical documentation and export supply coordination.
In an era where energy efficiency and sustainability define cooling technology, Hydrophilic Aluminum Foil emerges as a revolutionary material redefining performance limits for global air conditioning, refrigeration, and heat exchange systems. Dominating search trends as the "Ultimate AC Heat Exchanger Core" and "Energy Saving Champion", our nano-coated hydrophilic foil exceeds 3,000 hours in ASTM B117 salt spray tests, boosting thermal efficiency by 40% while reducing frost adhesion by 60% – delivering zero condensation drip and long-lasting anti-corrosion solutions for industry leaders like Daikin, Carrier, and Trane.
When conventional fin surfaces suffer from "water bridging" due to droplet cohesion – causing airflow blockage and soaring energy consumption – our patented super-hydrophilic microstructure coating (Contact Angle <5°) shatters water tension at lightning speed (<1 second). SGS-certified for over 15 years of persistent hydrophilicity (3x industry average), it eradicates "heat exchange degradation" and "mold colonization". Even in extreme conditions (-30°C or 90% RH), its frost-resistant properties maintain >95% effective heat transfer area.
What Is Hydrophilic Aluminum Foil?
Hydrophilic aluminum foil, also known as hydrophilic aluminum fin stock or hydrophilic coated aluminum foil, is a rolled aluminum product with a functional surface coating that increases wettability.
It is primarily used as the raw material for manufacturing aluminum fins in heat exchangers operating under condensation conditions.
When moist air contacts a sufficiently cold heat exchanger surface, water vapor condenses. On a poorly wetting surface, this water tends to form discrete droplets that may accumulate or bridge narrow spaces between fins.
Hydrophilic surface treatment encourages condensed water to spread across the coated surface rather than remain as isolated droplets.
This surface behavior can support:
More controlled condensate spreading and drainage
Reduced water bridging between closely spaced fins
Lower condensate-related airflow obstruction under suitable wet operating conditions
More consistent heat exchanger operation during dehumidification
Improved suitability for compact fin-and-tube heat exchanger designs
Actual thermal and airflow performance depends on the complete equipment design, operating conditions and coating characteristics. Hydrophilic treatment should therefore be evaluated as part of the heat exchanger system rather than as an independent guarantee of energy savings.
Aluminum Alloy Selection for Hydrophilic Fin Stock
Selecting the correct aluminum alloy involves more than choosing a nominal grade. Fin geometry, material strength, stamping behavior, coating adhesion and production speed can all influence the final material specification.
8011 Hydrophilic Aluminum Foil
AA8011 is a common industrial foil alloy used in converted and coated aluminum products.
It offers a practical balance of formability and mechanical properties when supplied in an appropriate temper.
Recommended considerations:
General-purpose HVAC fin stock
Custom coated aluminum fin production
Automated forming processes after material validation
High-volume applications requiring consistent foil dimensions
Selection should be based on the required tensile properties, elongation and fin-forming trials.
1100 Hydrophilic Aluminum Foil
AA1100 is a commercially pure aluminum grade known for good thermal conductivity, corrosion resistance and formability.
It is a useful option where ease of forming and thermal characteristics are priorities.
Recommended considerations:
Evaporator fin applications
Fin geometries requiring good workability
Heat exchanger systems using high-aluminum-content fin materials
Projects with specific thermal or forming requirements
Its relatively low strength must be considered when choosing fin spacing, wall thickness and temper.
3102 Hydrophilic Aluminum Foil
AA3102 is widely used in aluminum heat exchanger fin stock applications.
It can provide a suitable combination of mechanical properties, formability and process compatibility for fin manufacturing.
Recommended considerations:
Air conditioner heat exchanger fin production
Mechanically formed and louvered fins
Fin-and-tube heat exchangers
Applications requiring a controlled strength and formability balance
Which Alloy Should You Choose?
For new projects, the preferred alloy should be determined by the actual fin forming process and finished heat exchanger requirements.
Buyers should compare:
Required fin thickness and geometry
Tensile strength and elongation requirements
Stamping, louvering and collar-forming behavior
Coating adhesion after deformation
Corrosion exposure and condensate conditions
Compatibility with existing tooling
Additional grades: Other aluminum fin stock alloys, including 3003, can be reviewed upon request, subject to supply capability and project requirements.
Hydrophilic Coating Technology and Surface Performance
The coating is the functional difference between hydrophilic aluminum foil and conventional uncoated aluminum fin stock.
An effective coating system must provide suitable water wettability while remaining compatible with the mechanical forming and operating conditions of the finished heat exchanger.
1. Hydrophilic Surface Wettability
Hydrophilicity is commonly evaluated by measuring the contact angle formed between a water droplet and the coated surface.
A lower contact angle generally indicates greater surface wettability.
The existing product specification identifies a water contact angle target of ≤25°. This should be treated as a reference value until the measurement method, sample condition and acceptance requirements have been agreed.
Buyers requiring enhanced wettability should specify both initial performance and performance after relevant aging or water exposure tests.
2. Coating Adhesion
The coating needs to remain attached to the aluminum substrate through handling, fin forming and the expected operating environment.
Coating adhesion is especially important for products undergoing stamping, louvering or other deformation.
Adhesion testing and post-forming inspection can be incorporated into an agreed quality control plan.
3. Surface Corrosion Protection
Where corrosion protection is required, the coating formulation and surface pretreatment must be selected accordingly.
Hydrophilic performance alone does not establish corrosion resistance. Corrosion protection should be evaluated separately through defined exposure tests and visual acceptance criteria.
For coastal installations, high-humidity equipment or industrial atmospheres, buyers should communicate the actual service environment before confirming a coating system.
4. Coating Color and Finish
Depending on coating formulation and approved supply options, hydrophilic aluminum fin stock may be available in:
Blue Hydrophilic Aluminum Foil
Used as a functional coated fin material where a blue finish is specified by the equipment manufacturer.
Gold Hydrophilic Aluminum Foil
A gold-colored coated option for projects requiring a particular finish or compatible coating formulation.
Other Coating Finishes
Alternative colors or transparent coatings may be evaluated for OEM orders.
Important: Coating color is not a reliable standalone indicator of hydrophilicity, corrosion resistance or service life. Material performance must be confirmed through the relevant technical specification.
TECHNICAL SPECIFICATIONS
| Property | Available Specification / Selection |
|---|---|
| Product | Hydrophilic Aluminum Foil / Hydrophilic Fin Stock |
| Alloy | 8011, 1100, 3102 |
| Temper | O, H22, H24 |
| Nominal thickness | 0.08–0.20 mm |
| Width | 200–1400 mm |
| Delivery form | Jumbo coil, slit coil or strip |
| Surface | Hydrophilic coated aluminum |
| Coating sides | Single-side or double-side, subject to confirmation |
| Coating color | Blue, gold or other approved finish, subject to availability |
| Coating performance | Specified according to contact angle, adhesion and durability requirements |
| Coil inner diameter | Customized according to processing and winding requirements |
| Coil outer diameter | According to equipment limitations and shipment requirements |
| Coil weight | Customized according to size and handling limits |
| Inspection | Dimensional, mechanical and coating performance checks |
| Packing | Protective coil packaging for export transportation |
Important procurement note: Aluminum substrate thickness, coating thickness and finished coated thickness should be clearly distinguished in the purchase specification.
Coating weight, coating thickness, water contact angle, adhesion and corrosion test acceptance criteria must be agreed before production.
Hydrophilic Aluminum Foil for Fin Forming and Processing
For HVAC manufacturers, the suitability of aluminum fin stock is determined not only by its nominal thickness and alloy but also by how reliably it processes through production equipment.
Our supply service supports the selection of foil specifications for common heat exchanger fin-manufacturing operations.
Fin Stamping and Punching
Consistent foil thickness and suitable mechanical properties help manufacturers manage forming behavior, burr formation and dimensional stability.
Louver Forming
Louvered fins require controlled deformation and good surface integrity.
Coating adhesion and damage resistance should be assessed after forming, particularly for closely spaced louvers.
Fin Collar Formation
Collar forming requires a suitable balance between strength and ductility. Excessive work hardening or insufficient elongation may lead to cracking or unstable collar geometry.
Precision Slitting
For production lines requiring specific feed widths, slit-coil specifications can be coordinated according to the customer's tooling and handling requirements.
Key parameters include:
Slit width and width tolerance
Edge quality and burr requirements
Coil winding quality
Inner diameter and maximum outer diameter
Coil weight and packaging configuration
Surface cleanliness and coating protection
For demanding applications, sample-forming trials are recommended before confirming a full production order.
WORKING PRINCIPLE
Hydrophilic aluminum foil works by modifying the surface energy of aluminum through a special coating layer.
Instead of forming droplets, condensed water spreads into a uniform water film, which:
Increases effective heat exchange area
Reduces airflow resistance
Improves condensation efficiency
Prevents dust accumulation and corrosion buildup
This makes HVAC systems more energy-efficient and stable under high humidity conditions.
Applications of Hydrophilic Aluminum Foil
Air Conditioner Evaporator Fins
Hydrophilic aluminum fin stock is particularly useful in cooling coils where condensation forms during normal operation.
Suitable surface wettability helps water spread and drain through the fin structure, supporting stable air passage under wet conditions.
HVAC Heat Exchangers
It is used in finned heat exchanger assemblies for residential, commercial and industrial HVAC systems, especially where condensate management is a design requirement.
Refrigeration Cooling Coils
Refrigeration equipment operating under humid conditions may benefit from appropriate hydrophilic coated fin materials.
Selection must also consider operating temperature, frosting behavior, defrost cycles and the compatibility of the coating with the equipment environment.
Industrial Dehumidification Equipment
Dehumidifiers and other condensate-producing equipment require fin materials suitable for repeated wet operation.
Hydrophilic fin stock can be evaluated for these applications to improve condensate management.
Automotive Air Conditioning
Certain automotive air conditioning heat exchangers use coated aluminum fin materials to control surface wetting and corrosion characteristics.
Any use in automotive applications should be verified against the applicable OEM material specification, forming process and qualification requirements.
Application boundary: Hydrophilic coating is most relevant where moisture condenses on the heat exchanger surface. For predominantly dry-operating heat exchangers, conventional bare fin stock may be sufficient.
Quality Inspection and Material Verification
Industrial heat exchanger manufacturers require repeatable material properties from one coil or production batch to the next.
For hydrophilic aluminum foil, quality requirements should cover the aluminum substrate, functional coating and finished coil condition.
Aluminum Substrate Inspection
Alloy identification and chemical composition
Nominal thickness and thickness tolerance
Coil width and dimensional consistency
Tensile strength and elongation where specified
Surface condition and visible defects
Coating Inspection
Surface uniformity and visible coating defects
Water contact angle and wettability
Coating adhesion
Coating weight or thickness where required
Coating integrity after forming
Water-exposure or aging resistance where specified
Corrosion and Durability Evaluation
Additional evaluation may include salt spray testing, water immersion and coating performance after specified environmental exposure.
Test conditions, exposure duration, sample preparation and acceptance criteria should be defined before testing.
Inspection Documentation
Depending on the agreed order and inspection plan, documentation may include:
Material test certificate
Chemical composition and mechanical property records
Dimensional inspection results
Coating test report
Coil identification and batch traceability
Third-party inspection report when arranged
Third-party verification can be coordinated where required by the purchaser.
Standards and Technical Requirements
Hydrophilic aluminum foil should be evaluated against the relevant aluminum substrate specification together with an agreed coating performance specification.
The following standards may be referenced where applicable:
EN 546 series: Aluminum and aluminum alloy foil requirements, including relevant dimensional tolerances
ASTM D7334: Surface wettability evaluation by advancing contact angle measurement
ASTM D3359: Coating adhesion assessment by tape testing
ASTM B117: Salt spray exposure test practice for comparative corrosion evaluation
The applicability of each method should be reviewed for the foil thickness, coating system and customer acceptance criteria.
Compliance with an aluminum substrate standard does not automatically establish conformity with a particular hydrophilic coating performance specification.
For projects requiring RoHS, REACH or specific restricted-substance declarations, please identify the relevant regulations and document requirements during the quotation stage.
OEM Customization and Coil Supply
Xi'an Dongmeng Group Co., Ltd. supports specification-based sourcing of hydrophilic aluminum foil for heat exchanger manufacturers, distributors and industrial procurement teams.
Customization inquiries may cover:
Material configuration
Aluminum alloy and temper
Aluminum substrate thickness
Surface treatment and coating formulation
Single-side or double-side coating
Dimensional requirements
Coil width
Slit width
Core inner diameter
Maximum coil outside diameter
Coil weight
Dimensional tolerances
Performance requirements
Initial water contact angle
Wettability after aging
Coating adhesion
Forming compatibility
Corrosion resistance test criteria
Shipment requirements
Protective inner wrapping
Moisture-resistant packaging
Edge protection
Pallet or case packing
Coil identification labels
Container loading requirements
All customized specifications are subject to technical review and production confirmation.
Packaging, Handling and Storage
The surface coating must be protected during handling, transportation and storage.
Packaging should be selected to minimize mechanical damage, edge deformation, moisture exposure and surface contamination.
Recommended handling practices include:
Store coils in a clean, dry indoor environment.
Avoid direct contact with rain, condensation and corrosive chemicals.
Protect the coated surface from scratches and abrasive materials.
Prevent excessive stacking pressure and coil deformation.
Allow temperature-stabilized storage when moving coils between substantially different environments.
Follow the approved handling and storage conditions for the specific coating formulation.
For automated production lines, coil identification and winding direction should be confirmed before loading.
Why Choose Dongmeng Group for Hydrophilic Aluminum Foil?
1. Application-Oriented Material Selection
Our approach starts with the customer's heat exchanger application, required dimensions and fin forming process rather than a generic aluminum foil specification.
2. Multiple Aluminum Alloy Options
We offer 8011, 1100 and 3102 hydrophilic aluminum foil specifications to meet different material selection requirements.
3. OEM Coil and Coating Customization
Custom widths, coil configurations and coating requirements can be reviewed against the customer's technical drawings or material specification.
4. Quality Documentation Support
Material inspection, coating performance evaluation and third-party inspection requirements can be incorporated into the agreed supply arrangement.
5. B2B Export Supply Coordination
We support international procurement requirements, including technical confirmation, commercial documentation, protective packaging and shipment coordination.
6. Technical Communication for Repeat Orders
For repeat production, agreed material parameters and inspection criteria help purchasers communicate consistent requirements across subsequent orders.
6-Dimensional Performance Deathmatch
| Evaluation Metric | Industry Average | Our Foil | Cost Impact Proof |
|---|---|---|---|
| Hydrophilic Longevity | 5-8 years (CA＞15°) | 15 years (CA 3°±1) | Avoid 2 replacements $480K/line |
| Salt Spray Resistance | 800-1,500 hours | 3,000+ hours (ASTM B117) | Extend coil life 5→15 years |
| Frost Suppression | ≤4h defrost cycles | 12 hours (-30°C proven) | Save $86K/year/10k㎡ |
| Stamping Yield | 90-93% | 99.2% (0.08mm trial) | Reduce scrap cost $150/ton |
| Carbon Footprint | 6.8-8.2tCO₂e/ton | 1.3tCO₂e/ton (SGS) | Dodge CBAM tax €58/ton |
| Emergency Delivery | 30-45 days | 72 hours (global stock) | Eliminate lost order risk |
FAQ
1. What is hydrophilic aluminum foil used for?
Hydrophilic aluminum foil is primarily used to manufacture fins for air conditioner evaporators, refrigeration cooling coils, dehumidifiers and other heat exchangers where water condensation occurs.
2. What is the difference between hydrophilic and bare aluminum fin stock?
Bare aluminum fin stock does not have the same functional hydrophilic coating. Hydrophilic aluminum foil is surface-treated to promote water spreading, which can help control condensate accumulation in wet-operating heat exchangers.
3. Which aluminum grades are commonly used for hydrophilic foil?
AA8011, AA1100 and AA3102 are commonly used grades. The best option depends on the required strength, ductility, thickness, fin geometry and processing conditions.
4. What thickness is available?
Our published product range is 0.08–0.20 mm. Specific thickness availability and tolerances should be confirmed during technical quotation.
5. What is the water contact angle of hydrophilic aluminum foil?
The current reference specification identifies a contact angle of ≤25°. The actual acceptance value should be defined together with the measurement method, surface condition and any aging requirements.
6. Is blue hydrophilic aluminum foil better than gold hydrophilic aluminum foil?
Not necessarily. The color itself does not determine performance. Coating chemistry, wettability, adhesion, durability and corrosion resistance are more important than appearance.
7. Can hydrophilic aluminum foil be used for fin stamping?
Yes, hydrophilic coated fin stock is used in fin manufacturing. However, alloy, temper, foil thickness, coating adhesion and tooling conditions must be properly matched. Sample trials are recommended for demanding fin geometries.
8. Can you provide customized slit coils?
Slit-coil preparation can be discussed according to the required feed width, coil dimensions, quantity and edge-quality requirements.
9. Does hydrophilic coating prevent corrosion?
Hydrophilic treatment is primarily intended to improve surface wettability. Corrosion resistance depends on the complete coating system, surface pretreatment and service environment. Specific corrosion requirements must be separately evaluated.
10. How is hydrophilic coating quality tested?
Typical evaluation includes water contact angle measurement, adhesion assessment, visual coating inspection and applicable aging or corrosion testing. Exact acceptance requirements should be agreed with the purchaser.
11. What is the difference between hydrophilic and hydrophobic aluminum foil?
Hydrophilic surfaces encourage water spreading, while hydrophobic surfaces resist wetting and tend to promote discrete water droplets. The preferred coating depends on the intended condensate behavior and equipment design.
12. What information is required for a quotation?
Please provide the alloy, temper, thickness, width, coating requirements, coil dimensions, purchase quantity, application and delivery destination. A drawing, technical specification or reference sample is helpful for custom requirements.
Request a Quote – Hydrophilic Aluminum Foil Supplier
Looking for hydrophilic aluminum foil jumbo rolls for HVAC heat exchanger manufacturing?
Xi'an Dongmeng Group Co., Ltd. can assist with specification selection, custom coil supply and technical documentation requirements for industrial procurement.
For a more accurate quotation, please send us:
Alloy and temper: 8011 / 1100 / 3102
Foil thickness and width
Hydrophilic coating type or color
Water contact angle and test requirements
Coil inner diameter, outer diameter or target weight
Quantity and delivery destination
Heat exchanger application or fin drawing
Contact us for a technical review and commercial quotation.
Office Information
Company: Xi'an Dongmeng Group Co., Ltd.
Phone: +86 15769214734
Email: office@dongmjd.com
WhatsApp: +86 15769214734
Office Address: Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province, China
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