Shurtape af99-2.5 Aluminum Foil Tape Ul 181A-P/B-FX

Product Description

The SHURTAPE af99-2.5 is a UL 181A-P/B-FX listed and printed aluminum foil tape engineered for joining and sealing joints, connections, and seams on rigid fiberglass ductboard and flexible air duct systems. It can also serve as a substitute for mechanical fasteners on rigid ductboard applications. The tape forms airtight bonds across a wide operating temperature range of -20 degrees F to 260 degrees F and maintains performance in humid conditions. HVAC technicians and sheet metal installers rely on this tape as part of a complete duct system closure solution where code-compliant sealing is required.

This tape is suited for residential and commercial HVAC duct systems where UL 181A-P/B-FX compliance is required by local mechanical codes. It applies to both rigid fiberglass ductboard and flexible air duct, making it a versatile single-tape solution for mixed duct system installations. The linered backing aids in controlled application during seaming and connection work, and the tape performs reliably in the high-humidity environments common in air handling systems.

Key Features

• UL 181A-P/B-FX listed and printed — meets code requirements for rigid fiberglass ductboard and flexible air duct sealing
• Airtight bond on joints, connections, and seams to prevent conditioned air loss
• Operating temperature range of -20 degrees F to 260 degrees F
• Linered construction for clean, controlled application
• Can replace mechanical fasteners on rigid ductboard per UL listing
• Flexible construction handles extreme temperature fluctuations without delaminating or cracking

Compatibility

Designed for use on rigid fiberglass ductboard and flexible air duct systems where UL 181A-P/B-FX listed tape is specified. Suitable as an OEM-style closure tape in residential and commercial HVAC duct assemblies.

Installation Notes

This tape is installed by licensed HVAC technicians or sheet metal workers as part of duct system construction or repair. Shut down the air handling system and ensure duct surfaces are clean, dry, and free of dust or grease before applying tape. Press firmly across the full width of the tape to ensure full contact and an airtight seal. Installations involving UL 181-listed duct systems should comply with applicable local mechanical codes and SMACNA guidelines.

Technical Specifications

• Listing: UL 181A-P/B-FX Listed and Printed
• Width: 2.5 inches
• Backing Material: Aluminum foil
• Operating Temperature Range: -20 degrees F to 260 degrees F
• Liner: Linered
• Manufacturer Part Number (Alternate): 232622

Standard Information

• Brand: SHURTAPE
• Manufacturer Part Number: af99-2.5