Save 5% Off Orders Over $50

Act fast! Offer ends September 19th!

SYLVANE5

3M Foil Tape UL181A-P and UL181B-FX listed Duct Tape 3340, 2.5 in x 50 yd, 3.9 mil

SKU: mm15379  |  Model: 3340
$34.99

FREE shipping on orders over $45!

In Stock Ships within 1-2 business days.



Have a question or need a quote? Ask Our Experts

Live Chat | 1 (800) 934-9194 | Request Callback | Email

What's In The Box?

  • 3M Foil Tape 3340 Aluminum Tape (50 yards)

Description

This 3M Foil Tape 3340 is designed for sealing ducts and other surfaces for HVAC systems. This strong, long-lasting foil tape has an impressive operation temperature range of -40 to 300 degrees F. With a 2.0 mil aluminum foil backing plus strong, pressure-sensitive acrylic adhesive, it’s ideal for sealing rigid fiberglass duct boards and flexible air duct systems.

  • UL Listed: The aluminum duct tape is listed for both UL181A-P and UL181B-FX
  • Thermally Conductive Backing: The strong, long-lasting foil tape is resistant to hot and cold temperatures, increasing the system's efficiency.
  • Barrier: The foil backing is also an excellent barrier against moisture, dust, and chemicals. The low moisture vapor transmission rate makes it a good sealant.
  • Acrylic Adhesive: This pressure-sensitive adhesive also provides superior temperature and UV resistance for a durable, long-lasting bond.
  • Kraft Paper Liner: This easy-to-release poly-coated kraft paper protects the adhesive and keeps the tape clean and ready for use. 

Key Specifications

  • Tensile Strength: 29.0 lb/inch
  • Tape Thickness: 4 mil
  • Elongation at Break: 10 percent
  • Backing Material: Aluminum Foil
  • Adhesive Type: Acrylic
  • Dimensions: 50 yards x 2.5 inch Wide

Many Uses

This 3M aluminum tape can be used across many industries for a wide variety of applications, such as vapor sealing on reinforced fiberglass duct board, high-performance duct closure, and sealing flexible duct to rigid duct.

  • Transportation
  • Specialty Vehicle
  • Metalworking
  • Construction
  • Automotive
  • Military and Government
  • General Industry
  • MRO
  • Electronics
  • Aerospace

Sylvane’s Expert Take

3M Foil Tape 3340 Aluminum Tape is applicable to many applications and is UL-listed for use with HVAC systems. Its thermally conductive backing assists heating and cooling efficiency and withstands high and low temperatures, making it an effective and durable barrier.

Specifications

    Key Specifications

    • Classification Listings
      UL 181A-P/B-FX
    • Tensile Strength (lb/in)
      20
    • Total Tape Thickness (mils)
      4
    • Type
      Duct Tape

    General

    • Adhesive Type
      Acrylic
    • Backing Material
      Aluminum Foil
    • Color
      Gray
    • Maximum Operating Temperature (degrees F)
      250
    • Minimum Operating Temperature (degrees F)
      -30

    Dimensions

    • Overall Length (yds)
      50
    • Width (in.)
      2.5
    • Width (with front cover) (in.)
      2.5

Customer Reviews