Vybond 3393 UL181 Foil Tape 3 Inch 3 Mil 60 Yard Roll

Product Description

The VYBOND 3393 is a UL181-listed aluminum foil tape engineered for HVAC duct sealing applications. Built on a 3-mil total thickness construction, it combines an aluminum foil backing with a pressure-sensitive acrylic adhesive that delivers adhesion of approximately 45 oz per inch to steel. The 3-inch width covers larger seams efficiently, reducing the number of passes needed on wide duct joints. The acrylic adhesive system is formulated for long-term bonding and holds across a service temperature range of -40 degrees F to 300 degrees F. Each unit includes one 60-yard roll. Licensed HVAC technicians and sheet metal contractors are the primary installers.

This tape is used in residential and light commercial HVAC installations where UL181 compliance is required for duct system sealing. It bonds to metal ductwork, spiral duct seams, and foil-faced duct insulation. The 3-inch width is well suited for longitudinal seams on rectangular ductwork and larger transverse joints where a narrower tape would require overlapping strips. Projects governed by energy codes or mechanical inspection requirements that mandate UL181-listed materials are a primary application.

Key Features

• UL181 listed for use on Class 1 flexible air ducts and air connectors
• 3-inch width covers wide seams in a single pass
• 3-mil total thickness provides durable, tear-resistant handling during installation
• Acrylic adhesive delivers approximately 45 oz per inch adhesion to steel
• Service temperature range of -40 degrees F to 300 degrees F suits both heating and cooling duct systems
• 60-yard roll length reduces roll changes on large jobs

Compatibility

Designed for use on metal ductwork, spiral duct, and foil-faced duct insulation in HVAC systems where UL181-listed foil tape is specified.

Installation Notes

Installation is typically performed by licensed HVAC technicians or sheet metal workers in accordance with SMACNA standards and local mechanical codes. Surfaces must be clean, dry, and free of dust or oil before tape application to ensure full adhesive contact. Apply firm, even pressure across the full tape width using a seam roller or gloved hand. Do not apply to surfaces outside the rated temperature range or to flex duct jacket materials not listed for use with foil tape.

Technical Specifications

• Listing: UL181
• Width: 3 inches
• Total Thickness: 3 mil
• Roll Length: 60 yards
• Adhesive Type: Acrylic
• Adhesion to Steel: Approximately 45 oz per inch
• Service Temperature Range: -40 degrees F to 300 degrees F
• Backing Material: Aluminum foil
• Quantity per Unit: 1 roll

Standard Information

• Brand: VYBOND
• Manufacturer Part Number: 3393