8011 O aluminum foil for flexible duct

8011 O aluminum foil is the industry-standard material for the inner core of flexible ducts because it offers an unmatched combination of flexibility, strength, and impermeability in a lightweight, durable package

Why is it Used for Flexible Duct?
Flexible ductwork has a specific construction, and 8011 O aluminum foil plays a central role:

The Core Layer: The foil is the innermost layer (the air barrier) of the duct. It is corrugated into a helical (spiral) shape, which is what gives the duct its flexibility. The softness of the "O" temper allows it to be formed into this tight, continuous spiral without cracking.

The Complete Structure: A typical flexible duct is built like a sandwich:

Inner Core: The helical wire reinforced with 8011 O aluminum foil. This creates the airtight tube for airflow.

Bonded Insulation: A layer of fiberglass or polyester insulation is wrapped around the core to prevent thermal loss/gain and acoustic dampening.

Outer Jacket: A protective layer, often made of a reinforced plastic film or a metallized polymer, to protect the insulation from damage, moisture, and UV light (if exposed).

Key Properties and Benefits for HVAC Applications:
Air Tightness: Provides a seamless, non-porous barrier for conditioned air.

Vapor Barrier: Prevents moisture from migrating into the insulation, which can reduce its effectiveness and lead to mold growth.

Flexibility: The annealed temper allows the duct to be easily routed around obstacles in attics, crawl spaces, and walls.

Lightweight: Makes the ducts easy to handle and install.

Durability: Resists tearing and puncturing during installation, which could compromise system efficiency.

Fire Resistance: Aluminum is non-combustible and meets important fire safety standards for building materials.

HENAN TMR ALUMINUM has supplied the aluminum foil to Vietnam , Thailand , Ukarine, South American , Canada , European countries .

Aluminum products of TMR meet the export popular

Plastic movie and brown paper can be protected at customers’ need. Also timber case or timber pallet is adopted to shield products from harm for the duration of the delivery.

There are styles of packaging, which is eye to wall or eye to sky. Customers can choose either of them for their convenience.