Aluminum Foil Tape for HVAC Duct Sealing & Vapor Barrier - STK
STK's Aluminum Foil Tape is a heavy-duty, dead-soft aluminum foil backing combined with a high-performance, all-weather acrylic adhesive. Engineered as a permanent sealing and shielding solution, this tape is the industry benchmark for HVAC Duct Sealing and building envelope Vapor Barriers.
The unique dead-soft aluminum carrier conforms effortlessly to irregular surfaces, round ducts, and fibrous insulation joints. Designed to withstand extreme temperature fluctuations, it acts as an impenetrable shield against moisture, dust, and air leaks, ensuring peak energy efficiency in commercial HVAC systems and industrial piping networks.
Industrial Performance: High Thermal Conductivity & Flame Retardant Sealing
Commercial construction and industrial maintenance demand materials that satisfy strict safety codes and efficiency benchmarks. STK's Aluminum Foil Tape is engineered to meet these high technical specifications:
High Thermal Conductivity
The pure aluminum backing maximizes heating and cooling efficiency by acting as an effective thermal conductor. It assists in heat dissipation and thermal management across ductwork and electronic enclosures.
Flame Retardant & Smoke Safety
Our foil tape is formulated to meet rigorous building safety codes. It provides excellent flame-retardant properties, ensuring it will not contribute to flame spread or smoke generation in the event of a fire.
Ultimate Vapor Barrier & Moisture Seal
With a water vapor transmission rate approaching zero, it forms a permanent barrier against moisture intrusion, preventing condensation on chilled pipes and stopping mold growth in insulation systems.
Radiation & UV Shielding
Effectively reflects electromagnetic radiation, infrared heat, and UV light, protecting underlying plastic and rubber insulation from degradation in outdoor applications.
Technical Specifications
| Product Name | Aluminum foil tape | Aluminum foil tape | Aluminum foil tape | Aluminum foil tape | Aluminum foil tape | Aluminum foil tape |
| TotalThickness (mm) |
0.03 | 0.06 | 0.07 | 0.09 | 0.12 | 0.15 |
| Aluminum foil Thickness (mm) |
0.01 | 0.025 | 0.035 | 0.05 | 0.075 | 0.1 |
| Adhesive | Conductive Acrylic | Conductive Acrylic | Conductive Acrylic | Conductive Acrylic | Conductive Acrylic | Conductive Acrylic |
| Peel Adhesion | 1.2 | 1.2 | 1.2 | 1.2 | 1.5 | 1.5 |
| Initial Tack J.DOW(method) |
6 | 6 | 6 | 6 | 7 | 7 |
| Holding power 1kg/25mm/h |
≥48 | ≥48 | ≥48 | ≥48 | ≥48 | ≥48 |
| Voltage Resistance (kv) | ＞4 | ＞4 | ＞4 | ＞4 | ＞4 | ＞4 |
| Short-term temperature( ℃) | 120 | 120 | 120 | 120 | 120 | 120 |
| Long-term temperature (℃) | 80 | 80 | 80 | 80 | 80 | 80 |
Alternatives / Comparison
Brand Alternatives
Equivalent to: 3M 425 Aluminum Foil Tape
Comparable to: Nashua Aluminum Foil Tape
Comparable to: 3M 3340 HVAC Foil Tape
Comparison Logic
Same aluminum foil backing with acrylic or silicone adhesive system
Designed for HVAC sealing, vapor barriers, heat shielding, and industrial masking
Similar thermal conductivity, moisture resistance, and durability
Cost-Effective Alternatives
Factory direct aluminum foil tapes from Asian manufacturers provide:
Cost savings of approximately 30%–60%
Jumbo roll supply & custom slitting
Printable foil surface options
OEM / private label packaging
Core Application Fields
HVAC Sealing: Joining and sealing fiberglass duct board, sheet metal ducts, and flexible air ducts to maintain system pressure and climate control.
Insulation Vapor Barrier: Sealing joints on foil-faced insulation jackets, blanket insulation, and pipe lagging to prevent moisture transmission.
Thermal Management: Wrapping copper pipes, heating elements, and electronic parts to assist in heat reflection and uniform temperature distribution.
Appliance Manufacturing: Serving as a reliable moisture and heat deflector inside refrigerators, freezers, and industrial ovens.
Equipment
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