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In the modern construction and HVAC industry, thermal insulation and air sealing are critical for performance, energy efficiency, and longevity. One of the most effective yet often overlooked components of insulation systems is Alupet Tape – a metallic polyester film tape known for its durability, high reflectivity, and excellent sealing capabilities. Whether you’re working on ducting, insulation panels, or industrial applications, Alupet Tape in 2 Inch and 3 Inch sizes proves to be a versatile and reliable solution.
Alupet Tape is a composite tape made from aluminum foil laminated with PET (Polyethylene Terephthalate) film. This combination results in a highly reflective, tear-resistant tape that offers excellent thermal and moisture barrier properties. It is specially engineered for sealing and patching insulation materials, ducts, and HVAC joints.
Available in various widths, 2-inch and 3-inch variants are among the most popular, striking a balance between easy handling and optimal surface coverage.
1. HVAC Duct Sealing:
Alupet tape is widely used to seal air ducts, especially in heating, ventilation, and air conditioning systems. Its reflective layer enhances insulation and helps maintain air temperature across duct lines.
2. Insulation Material Wrapping:
When working with fiberglass, foam board, or rockwool insulation, Alupet tape ensures edges and joints are sealed tightly to prevent moisture ingress and improve thermal efficiency.
3. Vapor Barrier Sealing:
The tape acts as an excellent vapor barrier, ideal for use in areas prone to humidity. It helps prevent condensation and related mold or corrosion issues.
4. EMI/RFI Shielding:
The aluminum layer can block electromagnetic and radio frequency interference, making it suitable for use in sensitive electronic installations.
5. Industrial & Construction Uses:
Alupet tape is often used to reinforce insulation in piping, tanks, or cladding in commercial and industrial settings.
The metallic surface of Alupet Tape reflects radiant heat, enhancing energy efficiency and reducing heat transfer in HVAC systems and insulated surfaces.
Its PET-aluminum construction creates a waterproof and vapor-resistant barrier, preventing leaks, condensation, and damp-related damages.
Equipped with a strong acrylic adhesive backing, Alupet Tape adheres well to a variety of surfaces including metal, foil, plastic, and insulation panels.
Alupet tape can withstand both high and low temperatures, typically ranging from -20°C to +120°C, making it suitable for both hot and cold applications.
The 2-inch and 3-inch widths allow for flexibility depending on the job. The tape can be torn by hand or cut neatly with scissors or a knife for precision application.
Unlike basic foil tapes, Alupet’s polyester reinforcement makes it resistant to tearing and punctures, even when used in high-traffic or exposed areas.
| Property | Details |
|---|---|
| Tape Type | Alupet (Aluminum + PET Film) |
| Widths Available | 2 Inch (50mm), 3 Inch (75mm) |
| Thickness | 40–60 microns (typical) |
| Adhesive Type | Solvent Acrylic or Hot Melt |
| Temperature Resistance | -20°C to +120°C |
| Reflectivity | 97%+ |
| Moisture Resistance | Excellent |
| Tensile Strength | High |
| Application Surfaces | Foil, Metal, Ducts, Insulation |
| Shelf Life | 12–24 months (in dry conditions) |
While traditional aluminum foil tapes are still commonly used, Alupet Tape offers superior durability and resistance. The PET layer reinforces the aluminum, making it more rugged and less prone to tearing or creasing. This is particularly important in industrial and HVAC environments where reliability and endurance are key.
Additionally, Alupet’s reflectivity outperforms standard foil, making it more efficient in temperature-sensitive applications.
Imagine an HVAC contractor working on a commercial building in a humid region. The project involves long duct runs through attic spaces, which are subject to high temperature fluctuations and moisture. Using 3-inch Alupet Tape, the contractor seals all the duct joints and insulation boards. The outcome:
Reduced air leakage
Enhanced energy efficiency
No condensation around duct joints
Longer lifespan of insulation
This simple application of high-quality Alupet Tape contributes significantly to system performance and client satisfaction.
Surface Preparation: Ensure surfaces are clean, dry, and free from dust or oil before application.
Apply Firm Pressure: For optimal bonding, apply pressure across the tape using a roller or hand tool.
Overlap Properly: When covering seams or joints, use a 1-inch overlap to ensure complete sealing.
Temperature Consideration: Apply tape within the recommended temperature range to achieve maximum adhesion.
In both professional and DIY settings, Alupet Tape 2 Inch and 3 Inch proves to be a highly functional, efficient, and reliable choice for sealing, insulating, and protecting HVAC and construction systems. Its blend of aluminum foil and PET film provides strength, flexibility, and performance that go beyond traditional tapes. Whether you’re wrapping ducts, reinforcing insulation, or sealing vapor barriers, Alupet Tape ensures you get the job done right — with durability and precision.
If you’re aiming for thermal control, moisture protection, and long-lasting insulation results, investing in Alupet Tape is a smart move.
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