Engineered for HVAC contractors, air conditioning technicians, and mechanical maintenance professionals, Air Conditioner Aluminum Foil Tape solves the challenge of maintaining airtight seals under continuous thermal cycling and air pressure. The soft aluminum backing conforms smoothly over seam edges, angular joints, and curved duct profiles without lifting or warping over time.
Featuring a heavy-duty acrylic adhesive, this AC foil tape bonds securely to metal, plastic, fiberglass, and foil-faced insulation materials. Its reflective metallic surface reflects radiant heat and light, boosting thermal efficiency and protecting sensitive system components. By creating an impermeable barrier against vapor transmission, it effectively prevents condensation buildup, corrosion, and moisture damage throughout the air conditioning network.

Operates reliably from -30°C up to 150°C, maintaining its bond strength through freezing winter conditions and high-heat summer cooling loads.
Forms a continuous barrier that blocks air leaks and moisture infiltration, reducing energy loss and protecting ductwork from internal corrosion.
The bright aluminum foil carrier reflects radiant heat energy to improve cooling output and thermal regulation around AC units.
Dead-soft aluminum structure bends and molds easily around complex shapes, sharp corners, and corrugated duct surfaces.
Resists UV radiation, ozone exposure, and high humidity, preventing drying, cracking, or peeling in outdoor and unconditioned spaces.
Sealing joints, seams, and connections on galvanized steel, aluminum, and flexible AC air ducts.
Joining and repairing foil-faced fiberglass duct wrap, rigid duct board, and pipe insulation.
Shielding temperature-sensitive wiring, pipes, and structural components from radiant heat exposure.
Sealing air conditioning unit housings, drip pans, and ventilation passages against condensation leaks.
Tape Properties |
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|---|---|---|---|
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PROPERTIES |
METRIC |
ENGLISH |
TEST METHOD |
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Backing Thickness |
18 Micron |
0.72Mil |
PSTC-133 / ASTM D 3652 |
|
Total Thickness |
55 Micron |
2.2 Mil |
PSTC-133 / ASTM D 3652 |
|
Adhesion to Steel |
20N/25mm |
72Oz./In. |
PSTC-101 / ASTM D 3330 |
|
Tensile Strength |
35 N/25mm |
9.1Lb/In |
PSTC-131 / ASTM D 3759 |
|
Elongation |
3.0% |
3.0% |
PSTC-131 / ASTM D 3759 |
|
Service Temperature |
-30℃ to +150℃ |
-22℉ to +302℉ |
|
|
Applying Temperature |
-10℃ to +40℃ |
+50℉ to +105℉ |
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Tape Roll Size |
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|---|---|
| 50mm x 50m | 2” x 55yds |
| 75mm x 50m | 3” x 55yds |
| Log Roll: | 1020mm x 50m |
| Jumbo Roll: | 1020mm x 3000m |
A: Unlike cloth or plastic duct tapes that dry out, degrade, and lose adhesion under heat and thermal cycling, aluminum foil tape is made of durable metal foil and acrylic adhesive. It provides a permanent, code-compliant seal that resists extreme temperatures, moisture, and UV light without peeling.
A: AFA 1855 Air Conditioner Aluminum Foil Tape operates effectively across a broad temperature range from -30°C to 150°C (-22°F to 302°F), making it suitable for both cold air supply ducts and hot exhaust lines.
A: Yes. The high-tack acrylic adhesive is formulated to bond tightly to sheet metal, aluminum, flexible duct materials, fiberglass insulation facings, and plastic surfaces.
A: By creating a completely airtight seal along duct seams, it prevents conditioned cool air from leaking into unconditioned spaces like attics or basements. Additionally, its reflective aluminum surface blocks radiant heat gain, reducing overall HVAC energy consumption.
A: Yes. The aluminum backing and acrylic adhesive system are engineered with high resistance to UV radiation, ozone, moisture, and outdoor weathering, ensuring long-term durability on exterior ductwork.