As a technician at Haomei Aluminum with over a decade of experience in the ac aluminum foil field, I deeply understand that the core performance of heat exchangers depends on the fin material. Hydrophilic aluminum fin stock, through precise surface treatment and alloy ratios, solve the industry pain point of condensate buildup in traditional aluminum foil, becoming a key consumable in air conditioning and refrigeration equipment. Their core advantage lies in allowing condensate to quickly spread into a film and drain smoothly, preventing “water bridges” from clogging air ducts, fundamentally improving heat exchange efficiency and equipment stability. This is also the core logic behind global B2B customers choosing this type of material.
Specifications are the foundation of product compatibility. Our hydrophilic aluminum fin stock for heat exchangers use mainstream alloys such as 1060, 1100, and 8011, with 8011 aluminum alloy accounting for over 60% due to its balance of strength and corrosion resistance. Thickness is precisely controlled between 0.09-0.15mm, and width can be customized according to customer equipment requirements (500-800mm is the standard range). The primary temper is H24 semi-hard, suitable for various stamping processes. Regarding key performance indicators, the initial hydrophilic angle is ≤10°, remaining ≤20° after 72 hours of boiling in water; the coating thickness is 1.0-3.0μm; after 72 hours of salt spray testing, Rn≥9.5; and no bubbles are observed after immersion in 20% NaOH solution for 3 minutes, fully complying with mainstream global industry standards.
Application advantages are the core embodiment of customer value. From industry practice, firstly, hydrophilic aluminum fin stock is highly efficient and energy-saving, with a 10%-15% increase in heat exchange rate, resulting in approximately 8% energy savings for the same cooling capacity, which aligns closely with global low-carbon policies. Secondly, it has strong environmental adaptability, the coating can resist corrosion from high-salt coastal environments, and also possesses antibacterial and odorless properties, ensuring indoor air quality. Thirdly, it is easy to process, with excellent formability and minimal wear on molds, reducing customer production losses. We have customized automotive air conditioning fin materials for Southeast Asian customers, which, thanks to their excellent high-temperature resistance (stable performance at 200℃ for 5 minutes) and oil resistance, extended equipment lifespan by 30%.
Regarding pricing and market structure, the current international market average price of hydrophilic aluminum fin stock for heat exchangers is $3.5-3.8/kg (reference price in January 2026), with slight fluctuations depending on order volume, alloy type, and customization requirements. Global market concentration continues to increase, with the top five manufacturers accounting for 58% of the market, and leading Chinese companies holding nearly 30% of the market share. Haomei Aluminum, leveraging its large-scale production and core coating technology, holds a dominant position in the mid-to-high-end market, with products exported to over 20 countries in Europe, America, and Southeast Asia, gaining widespread recognition, particularly in the automotive air conditioning and commercial refrigeration sectors.
From an industry development perspective, hydrophilic aluminum fin stock for heat exchangers are upgrading towards thinner, more weather-resistant, and multifunctional materials. Through continuous R&D, Haomei Aluminum has optimized its coating process, improving hydrophilic durability while reducing costs. Choosing us not only provides you with products that meet standards but also allows you to enjoy customized technical solutions and after-sales support based on global export experience.
