Nashua 322_3X50YD Aluminum Foil Tape 3 in X 50 Yd 5 Mil

Product Description

The NASHUA 322_3X50YD is a plain foil tape designed for sealing, seaming, and repairing foil-jacketed insulation systems in HVAC, construction, and industrial applications. The tape measures 3 inches wide by 50 yards long with a 5 mil total thickness. It is built from an aluminum foil backing, a synthetic rubber adhesive, and an unbleached natural kraft paper liner. The synthetic rubber adhesive delivers extreme high tack and an aggressive bond to a wide range of surfaces. Low VOC content makes it suitable for enclosed mechanical spaces and LEED-qualifying projects. Licensed HVAC technicians, insulation contractors, and sheet metal mechanics are the primary installers.

This tape is used to join and seal seams and joints on foil jacketing insulation in residential and commercial HVAC ductwork, to provide a moisture and vapor barrier at penetrations and transitions, and for general repair tasks in the automotive and construction industries. Its conformable foil backing allows it to wrap tightly around corners, irregular joints, and curved surfaces without lifting or bridging. The tape performs reliably across a temperature range of 40 degrees F to 200 degrees F, making it appropriate for both interior mechanical rooms and exterior installations subject to weather exposure. UV resistance and mold and mildew resistance extend service life in humid or outdoor environments.

Key Features

• Synthetic rubber adhesive with extreme high tack and aggressive surface bond
• Conformable aluminum foil backing fits corners, curves, and irregular joints
• UV resistant, moisture resistant, and mold and mildew resistant
• Low VOC, non-solvent formula reduces odor in occupied and enclosed spaces
• Meets flammability requirements for construction and marine applications
• Can contribute toward LEED EQ Credit 4.1 Low Emitting Materials compliance
• Rated for use across temperatures from 40 degrees F to 200 degrees F

Compatibility

Designed for taping joints and seams against moisture and vapor on foil jacketing insulation and for general repair use in the automotive industry. Meets UL 723, PSTC 101, and LEED applicable standards.

Installation Notes

Installation is typically performed by licensed HVAC technicians or insulation contractors as part of duct fabrication, insulation jacketing, or repair work. Power down and lock out the air handling system before working on ductwork or insulation in live mechanical spaces. Clean and dry all surfaces before applying the tape to ensure full adhesive contact. Follow local mechanical codes and manufacturer insulation system requirements for seam overlap and tape width minimums.

Technical Specifications

• Type: Plain Foil Tape, 1-Coated
• Color: Aluminum
• Width: 3 inches
• Length: 50 yards
• Thickness: 5 mil
• Backing Material: Aluminum
• Adhesive Material: Synthetic Rubber
• Liner Material: Unbleached Natural Kraft Paper
• Temperature Rating: 40 to 200 degrees F
• Applicable Standards: UL 723, PSTC 101, LEED

Standard Information

• Brand: NASHUA
• Manufacturer Part Number: 322_3X50YD