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Air conditioner aluminum foil tape is made of soft aluminum foil and has an acrylic adhesive backing, allowing it to be easily applied to various surfaces. High-performance adhesive used in the adhesive tape has strong adhesion and excellent retention, and provides firm and reliable sealing and adhesion for the joints and seams of central air-conditioning duct (from -30 degrees to 150 degrees).

AFA 1855 air conditioner aluminum foil tape will be good aging stability, high resistance to UV, ozone and humidity, best useful in long-term, air-conditioner duct work applications. The aluminum foil material provides excellent heat and moisture resistance, making it suitable for use in HVAC applications.

Aluminum Foil Tape Applications:

Sealing leaks and gaps: In air ducts, vents, and around the AC unit itself, preventing air leaks that can affect performance and efficiency.

Insulating: The reflective surface helps reflect heat outwards, improving thermal insulation and potentially reducing energy consumption.

Repairing: Patching minor tears or holes in metal or fabric ductwork or other components.

Moisture barrier: Wrapping pipes or components to prevent condensation and moisture buildup.

Reflecting heat: Can be used temporarily to redirect heat away from sensitive areas near the AC unit.

Aluminum Foil Tape Features:

Heat and temperature resistance: The aluminum foil backing reflects heat and withstands high temperatures typically encountered in AC systems. This makes air conditioner tape useful for insulating components, reflecting heat away from sensitive areas, and even for temporary repairs in hot environments.

Strong adhesive: Usually formulated with acrylic adhesive, air conditioner tape offers powerful bonding to various surfaces found in AC units, including metal ductwork, fabric ducts, and insulation. This ensures secure sealing and leak prevention even under moderate pressure or vibration.

Moisture barrier: The combination of aluminum foil and adhesive creates a good barrier against moisture. This helps prevent condensation buildup and water damage within the air conditioner unit and surrounding areas.

Reflection: The shiny aluminum surface effectively reflects heat and light. This can be beneficial for directing heat away from specific components or even boosting the unit's cooling efficiency to some extent.

Flexibility and conformability: While thin and lightweight, air conditioner aluminum foil tape exhibits a good degree of flexibility, allowing it to conform to slightly uneven surfaces encountered around AC units. This makes it easier to apply and ensures better sealing around bends or curves.

Tape Properties:





Backing Thickness

18 Micron


PSTC-133 / ASTM D 3652

Total Thickness

55 Micron

2.2 Mil

PSTC-133 / ASTM D 3652

Adhesion to Steel



PSTC-101 / ASTM D 3330

Tensile Strength

35 N/25mm


PSTC-131 / ASTM D 3759




PSTC-131 / ASTM D 3759

Service Temperature

-30℃ to +150℃

-22℉ to +302℉


Applying Temperature

-10℃ to +40℃

+50℉ to +105℉


Tape Roll Size:

Finish Roll:

50mm x 50m 2” x 55yds
75mm x 50m 3” x 55yds
Log Roll: 1020mm x 50m
Jumbo Roll: 1020mm x 3000m