China Air Duct Aluminum Foil Company, Factories

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China Air Duct Aluminum Foil Company, Factories

Air duct aluminum foil is a specialized, thin aluminum material designed for HVAC (Heating, Ventilation, and Air Conditioning) systems. It integrates aluminumâ€™s inherent lightness, corrosion resistance, and thermal stability with enhanced flexibility and airtightness, serving as a core material for air duct insulation, sealing, and protection.

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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
Width	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

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

What are the primary alloy types used in air duct aluminum foil?

The primary alloys used include 1235 (highly flexible, ≥99.35% Al), 1145 (stronger than 1235), and 8011 (with added iron and silicon for enhanced stiffness and heat resistance up to 150°C).

What is the typical thickness range for HVAC duct aluminum foil?

Air duct aluminum foil generally ranges from ultra-thin (0.012mm - 0.015mm) for tight bending spaces, standard thicknesses (0.018mm - 0.03mm) for general HVAC wrapping, to heavy-duty (0.08mm - 0.2mm) for industrial environments.

Why are surface treatments like PE or Acrylic coatings applied to the foil?

Acrylic coatings improve adhesion to glass wool or rock wool insulation layers to prevent delamination. PE (Polyethylene) coatings provide extra moisture resistance, making the foil ideal for humid environments such as basements and coastal areas.

Can air duct aluminum foil provide fire resistance?

Yes. Foil treated with fire-retardant coatings can meet high safety standards, such as UL94 V-0, making it suitable for public and high-rise building ducts.

What standard and custom widths are available for ducting foil?

Standard widths include 1000mm, 1200mm, 1500mm, and 2000mm to maximize installation efficiency. Custom widths can also be ordered ranging from 500mm up to 2000mm to minimize material waste.