Foil Tapes for HVAC, Aerospace and Industrial Sealing Applications

Elite Tape supplies industrial-grade foil tape for precise sealing, shielding, and vapor barrier applications, plus a broad range of foil tapes including aluminum foil tape, lead foil tape, and copper foil tape for distributors and industrial buyers. Our foil tape constructions cover the full spectrum from general-purpose HVAC duct sealing to radiation-shielding lead tape for medical and nuclear environments.

Elite Tape offers Heavy-duty Foil Tapes for E-Coat Masking, Vapor Barrier and High Heat Reflection applications. If you’re wondering what is foil tape used for, it serves these functions along with several others in industrial settings. Our Aluminum Foil Tape & Lead Foil Tape, along with our HVAC tape and adhesive foil tape,​ are available with either an aggressive, UV resistant acrylic adhesive for outdoor applications or super tacky rubber based adhesive for heavy duty plating. These malleable foil tapes, along with our metal tape options and aluminum foil duct tape, conform well to irregular and curved surfaces. Excellent performance at both low and elevated temperatures. Elite’s Aluminum & Lead Foil Tapes are provided with a release liner for easy dispenser cutting and die cutting. We stock our Aluminum and Lead Foil Tapes in log roll format and can slit from 1/8” up to full log width of 47” on the Aluminum Foil Tapes and 20” on the Lead Foil Tapes. These aluminum foil tapes are ideal for both commercial and industrial applications, offering unmatched durability and resistance. Elite Tape offers the highest quality, malleable foil tapes, custom and stock sizes, quick 2-3 day lead times, expert recommendations and intelligent pricing.

For more information on Foil Tapes, see our article:

Some of the more common foil masking tape applications:

• Waterproof Sealing
• Vapor Barrier
• Air Leakage protection
• Heat Reflection/dissipation
• Masking in Paint Stripping and Electroplating
• Can be applied at low temps
• Acrylic psa can withstand temps up to 250F (Long Term) to 300F (Short Term)
• Rubber psa can withstand temps up to 175F

FREQUENTLY ASKED QUESTIONS ABOUT FOIL TAPES

What is Foil tape used for?

Foil tape is a type of adhesive tape that has a thin, metallic foil backing. It is commonly used for a variety of purposes due to its unique properties, including aluminum foil duct tape, which is particularly versatile.

• HVAC (Heating, Ventilation, and Air Conditioning): Foil tape is extensively used in HVAC systems for sealing and insulating. It is used to seal joints and seams in ductwork, providing an airtight seal and preventing air leaks. The reflective surface of the tape also helps in thermal insulation by reflecting heat and cold.
• Insulation: Foil tape, including insulation foil tape, is used in insulation applications where a vapor barrier is required. It is often applied to seal the seams and edges of insulation materials, such as fiberglass or foam board insulation. The tape helps to prevent moisture penetration and enhances the overall insulation performance. Metal foil tape adds an extra layer of protection and efficiency in these situations.
• Electrical applications: Foil tape is used in electrical applications that require shielding or grounding. It is employed for wrapping and grounding electrical cables and shielding sensitive electronic components from electromagnetic interference. The conductive properties of the metallic foil backing help in achieving effective grounding and shielding.
• Automotive repairs: Foil tape finds use in automotive repairs and maintenance. It can be used to temporarily patch exhaust pipes, seal leaks in cooling systems, or repair damaged wiring harnesses. The heat resistance and durability of the tape make it suitable for these applications.
• Packaging and shipping: Foil tape is sometimes used in packaging and shipping applications. It can be employed for sealing cartons, boxes, or packages that require an extra layer of protection against moisture or to provide a tamper-evident seal.

Foil tape’s properties, such as its metallic appearance, heat resistance, reflectivity, and ability to conform to irregular surfaces, make it a versatile solution for many applications. So, what is foil tape used for? It can be applied in HVAC systems, insulation, and electrical repairs, among others. This versatility is enhanced with our metal tape, offering a durable, easy-to-use means of sealing, insulating, and protecting various materials and components.

What is the difference between Aluminum foil tape and Lead foil tape?

The main difference between aluminum foil tape and lead foil tape lies in the material used for the foil backing but there are a few other key distinctions.

1. Material

• Aluminum foil tape has an aluminum foil backing
• Lead foil tape has a lead foil backing
• Metal foil tape can refer to both aluminum and lead foil tapes, depending on the specific application and requirements.

2. Properties

• Aluminum foil is lightweight, flexible, and has good thermal conductivity. It offers excellent resistance to moisture, chemicals, and UV radiation. It is also non-toxic and safe for general use.
• Lead foil is denser and heavier than aluminum foil. It provides superior resistance to radiation, including X-rays and gamma rays. However, lead is toxic, and caution must be exercised when handling lead foil tape.

3. Applications

• Aluminum foil tape finds widespread use in HVAC tape systems, insulation foil tape for sealing insulation, electrical applications, automotive repairs, and packaging. It is suitable for applications that require general sealing, insulation, and heat reflection. Similarly, adhesive foil tape offers versatile solutions for sealing and protecting in these environments, combining strength and heat resistance.
• Lead foil tape, with its superior radiation resistance, is primarily used in specific applications that involve radiation shielding or containment. It is commonly employed in medical, nuclear, and industrial settings, where protection from X-rays or gamma rays is necessary.

4. Safety considerations

• Aluminum foil tape is considered safe for general use and does not pose significant health risks.
• Lead foil tape can present potential health hazards due to the toxicity of lead. Precautions must be taken to prevent ingestion or inhalation of lead particles and to ensure proper handling, disposal, and use in accordance with safety guidelines.

What is Foil Skrim Kraft tape?

Foil Skrim Kraft (FSK) tape is a type of adhesive tape that is commonly used in the insulation industry. It is specifically designed for sealing and joining insulation facing materials, such as fiberglass duct board, flexible duct, and reflective insulation.

FSK tape consists of three main layers:

1. Foil Layer: The outermost layer is made of aluminum foil, which provides excellent heat and moisture resistance. The foil layer also adds strength and durability to the tape.
2. Skrim Layer: The middle layer is a reinforcing skrim, which is usually made of fiberglass. The skrim provides structural support to the tape and prevents it from stretching or tearing. It enhances the overall strength and stability of the tape.
3. Kraft Paper Layer: The innermost layer is a kraft paper backing, which is typically coated with an adhesive. The kraft paper provides additional strength and serves as a bonding surface for the adhesive.

The combination of these three layers makes FSK tape highly resistant to temperature changes, moisture, and vapor transmission. It is commonly used to seal seams and joints in insulation systems, preventing air leakage and improving energy efficiency.

FSK tape is also known for its easy application. It can be torn by hand, allowing for quick and hassle-free installation. The adhesive backing ensures a secure and long-lasting bond when applied to various insulation materials.

Overall, FSK tape is widely utilized in HVAC (Heating, Ventilation, and Air Conditioning) installations, as well as other applications where a strong, heat-resistant, and moisture-resistant sealing tape is required.

Is Foil tape removable?

Foil tape is typically designed to provide a strong and durable bond, which means that it may not be as easily removable as some other types of adhesive tapes. The adhesive used on foil tape is often pressure-sensitive and designed to create a long-lasting bond with the applied surface.

While it is possible to remove foil tape, the process may require some effort and may leave residue behind. The ease of removal can depend on various factors, including the specific adhesive used, the duration of the tape’s application, and the surface it was applied to.

Which is strongest: Aluminum foil tape, Lead foil tape or Foil-Skrim-Kraft tape?

When comparing the strength of different types of foil tapes, it’s important to consider the specific characteristics and intended uses of each type.

Aluminum Foil Tape: Aluminum foil tape is known for its strength and durability. Aluminum foil itself is a relatively strong and tear-resistant material, making it suitable for applications that require robust performance. The adhesive used in aluminum foil tape also contributes to its overall strength, as high-quality adhesives can provide strong bonds to various surfaces.

Lead Foil Tape: Lead foil tape is generally thicker and denser than aluminum tape. This added thickness can provide some additional strength and durability. However, it’s important to note that lead foil tape is primarily used for its radiation shielding properties rather than its strength alone. The adhesive used in lead foil tape should also be considered for its strength and bonding capabilities.

Foil-Skrim-Kraft Tape: Foil-Skrim-Kraft tape, or reinforced foil tape, features a thin fabric mesh (skrim) sandwiched between layers of adhesive and foil. The skrim provides additional reinforcement and strength to the tape. The exact strength of skrim foil tape can vary based on the type and quality of the skrim material used. Fiberglass and polyester skrim are commonly used, with fiberglass offering higher strength and resistance to tearing.

Overall, in terms of raw strength, aluminum tape and lead foil tape may provide more inherent strength compared to foil-skrim-kraft tape. However, the specific requirements of your application, such as thermal resistance, radiation shielding, or flexibility, may dictate which type of foil tape is the most suitable choice.

Consider factors such as the intended use, environmental conditions, and required properties beyond strength when selecting the appropriate foil tape for your application.

Is foil tape stronger than duct tape?

When comparing the strength of foil tape and duct tape, it’s important to consider the specific characteristics and intended uses of each type of tape.

• Foil Tape: Foil tape is typically made with a backing of aluminum foil, which provides strength and durability. Aluminum foil is known for its tear resistance and ability to withstand harsh conditions. Foil tapes often feature high-quality adhesives that create strong and long-lasting bonds to various surfaces. The combination of the strong foil backing and adhesive strength makes foil tape generally robust and suitable for demanding applications.
• Duct Tape: Duct tape, also known as cloth tape, consists of a cloth or fabric backing typically made of woven cotton or polyester, coated with a layer of adhesive. While duct tape is versatile and widely used, its strength may not be on par with foil tape. Aluminum duct tape offers additional benefits with its aluminum backing, providing enhanced durability and resistance compared to standard duct tape. The fabric backing of duct tape provides flexibility and conformability but may not have the same tear resistance and structural integrity as aluminum foil. The adhesive used in duct tape can vary, and while it can provide good initial bonding strength, it may not offer the same long-term durability and performance as the adhesives used in foil tapes.

In terms of raw strength, foil tape is generally considered to be stronger than duct tape due to the sturdiness of the aluminum foil backing. However, it’s important to note that aluminum duct tape offers its own advantages, such as flexibility, ease of tearing, and versatility in various applications.

The choice between foil tape and duct tape ultimately depends on the specific requirements of the task at hand. If strength and durability are the primary considerations, foil tape may be the better choice. However, if flexibility, conformability, and general-purpose usage are more important, duct tape may be preferred.

Aluminum foil tape is the highest-volume foil tape in Elite Tape’s product line and the most widely specified tape for HVAC and insulation applications. The aluminum backing delivers excellent heat reflection, moisture resistance, and conformability to irregular duct surfaces.

• Temperature range: minus 40 F to 302 F (-40 C to 150 C)
• UL 181A-P and UL 181B-FX listed for use on flexible air ducts and air connectors
• Ideal for seaming and joining aluminum-faced insulation and fiberglass duct board
• Aggressive acrylic adhesive bonds to aluminum, stainless steel, galvanized steel, and most insulation facings
• Available in standard widths from 2 inches to 4 inches and in bulk slit-to-order widths from 1/8 inch to 48 inches

Lead foil tape is a high-density specialty tape used primarily in applications requiring radiation shielding. The lead backing provides superior attenuation of X-ray and gamma radiation, making it the specified material in medical imaging, nuclear, and industrial radiography environments.

• Radiation shielding for X-ray rooms, CT scan suites, and nuclear facilities
• Available in multiple lead thicknesses from 0.5 mm to 3 mm to match shielding requirements
• Acrylic adhesive bonds to concrete, drywall, lead sheet, and other masonry surfaces
• Custom-cut and slit-to-order available for architectural and equipment shielding projects
• Handling note: Lead foil tape should be handled with gloves. Dispose of in accordance with local regulations for lead-containing materials.

Copper foil tape is the primary choice for EMI (electromagnetic interference) shielding, grounding, and conductive applications where a low-resistance metal tape is required. The copper backing is electrically conductive on both the foil surface and through the adhesive (conductive adhesive variants), making it essential in electronics manufacturing, PCB fabrication, and RF shielding.

• EMI and RFI shielding for electronic enclosures, cables, and PCB assemblies
• Available with conductive acrylic adhesive (electrically continuous shielding) and non-conductive adhesive
• Used in stained glass work for lead-free soldering applications
• Temperature range: minus 40 F to 302 F
• Custom widths from 1/4 inch to 12 inches, slit-to-order for production

HVAC is the largest single end-market for foil tape. Contractors, mechanical engineers, and insulation installers rely on aluminum foil tape and FSK (foil-scrim-kraft) tape for the following tasks where code-compliant sealing is required:

• Sealing and joining flexible ductwork connections (UL 181 listed products required by most building codes)
• Seaming aluminum-faced duct board insulation panels
• Sealing vapor barriers on pipe insulation jacketing
• Patching damaged foil facings on duct insulation
• Providing a continuous vapor barrier at HVAC equipment penetrations through building envelopes

Elite Tape stocks UL 181A-P and UL 181B-FX listed aluminum foil tapes in the widths and roll lengths that HVAC contractors need, with same-day shipping available on standard sizes.

Aerospace and defense manufacturers use specialty foil tapes for heat shielding, EMI protection, and surface protection during fabrication and assembly. The requirements in aerospace are more stringent than commercial HVAC, with qualified product lists (QPL) and material traceability requirements that Elite Tape can support.

• Heat shielding tape for engine bay and exhaust proximity components
• EMI shielding tape for avionics, wire harnesses, and instrumentation enclosures
• Surface protection tape applied during fabrication to prevent damage to finished aluminum and composite surfaces
• Specialty lead foil tape for radiation shielding on satellite and space vehicle components

Contact Elite Tape to discuss material certifications, lot traceability, and custom constructions for aerospace and defense applications.