China Air Duct Aluminum Foil Factory - Leading Suppliers for HVAC Insulation and Sealing Solutions

Air duct aluminum foil is a lightweight and durable material specifically engineered for HVAC (Heating, Ventilation, and Air Conditioning) systems. Manufactured by leading suppliers in China, this aluminum foil offers excellent resistance to corrosion and thermal stability while ensuring enhanced flexibility and airtightness. As an essential component for air duct insulation, sealing, and protection, our aluminum foil is produced in state-of-the-art factories, guaranteeing superior quality and performance for all your HVAC needs

Product Description

Key Specifications
Specification Category Detailed Parameters Application Scenarios Key Notes
Thickness Ultra-thin: 0.012mm - 0.015mm Lightweight residential ducts, small-diameter flexible ducts High flexibility, suitable for tight bending spaces
Common: 0.018mm - 0.03mm Residential, commercial HVAC main ducts, standard insulation wrapping Balanced flexibility and durability, most widely used
Heavy-duty: 0.08mm - 0.2mm Industrial ventilation ducts, high-temperature exhaust ducts Enhanced tear resistance, adaptable to harsh environments
Alloy Types 1235 Aluminum Alloy (≥99.35% Al) Residential duct wrapping, flexible duct cores, general insulation Excellent flexibility and ductility, easy to cut and form
1145 Aluminum Alloy Commercial ducts, medium-sized ventilation systems Higher strength and tear resistance than 1235 alloy
8011 Aluminum Alloy (with Fe, Si additions) Industrial exhaust ducts, high-temperature HVAC systems (e.g., kitchen exhaust) Enhanced stiffness and heat resistance, withstands 120–150°C
Surface Treatments Plain Foil (Uncoated) Indoor dry environment ducts, temporary duct insulation Cost-effective, basic protection performance
Acrylic-coated Foil Insulation layer bonding, duct liners Improves adhesion to glass wool/rock wool, prevents delamination
PE (Polyethylene)-coated Foil Humid environments (basements, coastal areas), outdoor ducts Enhanced moisture resistance, avoids corrosion from condensation
Fire-retardant Coated Foil Public buildings (malls, hospitals), high-rise building ducts Meets UL94 V-0 or equivalent fire safety standards
Width Standard Widths: 1000mm, 1200mm, 1500mm, 2000mm Large-scale duct installation, batch insulation wrapping Reduces splicing frequency, improves construction efficiency
Custom Widths: 500mm - 2000mm (on request) Special-sized ducts, non-standard ventilation systems Minimizes material waste, fits specific duct dimensions
Other Names for Air Duct Aluminum Foil
  • HVAC Aluminum Foil
  • Ducting Aluminum Foil
  • Flexible Duct Aluminum Foil
  • Air Conditioning Aluminum Foil
  • Insulated Duct Aluminum Foil
Top Global Manufacturers
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Leading producers include Alcoa (US), Novelis (global), Norsk Hydro (Norway), and Constellium (Europe). These firms supply high-quality 1100/3003/8011 alloy foils for HVAC ducts, offering excellent formability, corrosion resistance, and heat insulation. Products meet UL, CE, and ISO standards, serving global construction and ventilation markets.
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Frequently Asked Questions (FAQ)
Q What thickness of air duct aluminum foil is most commonly used in residential HVAC systems?
The most commonly used thickness for residential HVAC systems is the "Common" range of 0.018mm – 0.03mm. This range offers a balanced combination of flexibility and durability, making it ideal for standard duct insulation wrapping and main duct applications in homes and apartments.
Q What is the difference between 1235, 1145, and 8011 aluminum alloy foils for air ducts?
1235 alloy (≥99.35% Al) offers excellent flexibility and ductility, best for residential duct wrapping. 1145 alloy provides higher strength and tear resistance, suited for commercial ventilation. 8011 alloy contains Fe and Si additions, delivering enhanced stiffness and heat resistance up to 120–150°C, making it ideal for industrial and kitchen exhaust systems.
Q Which surface treatment is recommended for air ducts in humid or coastal environments?
PE (Polyethylene)-coated aluminum foil is the recommended choice for humid environments such as basements, coastal areas, or outdoor duct installations. The PE coating significantly enhances moisture resistance and prevents corrosion caused by condensation, extending the service life of the duct system.
Q Can air duct aluminum foil be customized in width, and what are the available options?
Yes. In addition to standard widths of 1000mm, 1200mm, 1500mm, and 2000mm, custom widths ranging from 500mm to 2000mm are available on request. Custom sizing minimizes material waste and ensures a precise fit for special-sized or non-standard duct dimensions.
Q What certifications should air duct aluminum foil meet for use in public buildings?
For public buildings such as shopping malls, hospitals, and high-rise structures, fire-retardant coated aluminum foil is required. It should comply with UL94 V-0 or equivalent international fire safety standards. Additionally, products from leading manufacturers typically meet UL, CE, and ISO quality and safety standards for construction and ventilation applications.
Q Who are the leading global manufacturers of air duct aluminum foil?
The top global manufacturers include Alcoa (United States), Novelis (global operations), Norsk Hydro (Norway), and Constellium (Europe). These companies produce high-quality 1100, 3003, and 8011 alloy foils widely used in HVAC duct systems worldwide, with products certified to UL, CE, and ISO standards.

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