Avery Dennison 9573met 957 Series Metalized Duct Tape 3 in

Product Description

The AVERY DENNISON 9573met is a metalized specialty-grade cloth duct tape engineered for sealing, seaming, and joining Class 1 flexible duct systems in the HVAC industry. Built around an aggressive rubber-based adhesive, it delivers superior tack and adhesion to polyethylene and stainless steel surfaces. The 3-inch width makes it well suited for wrapping flex duct collars and making clean splices at air connectors. It carries a UL 181 B-FX listing, confirming it meets the tensile strength and adhesion thresholds required by UL standards and applicable building codes. HVAC technicians and sheet-metal contractors reach for this tape when code compliance and long-term joint integrity are non-negotiable.

This tape is designed for residential and light-commercial HVAC installations where Class 1 flex duct systems are the standard. Typical applications include connecting flexible air ducts to plenums, boots, and air connectors, as well as sealing seams along duct runs. The metalized facing resists moisture and mold growth, making it a reliable choice in attic, crawlspace, and mechanical-room environments where humidity levels fluctuate. HVAC installers and service technicians working under UL 181 and local mechanical code requirements will find this tape satisfies inspection criteria without the need for mastic in many flex-duct scenarios.

Key Features

• UL 181 B-FX listed — meets tensile and adhesion requirements for Class 1 flex duct systems
• Aggressive rubber-based adhesive with excellent tack to polyethylene and stainless steel
• Highly resistant to mold growth and humidity for long-term performance in damp environments
• Superior shear adhesion keeps seams intact under sustained airflow pressure
• Easy hand-tearability reduces tool dependency on the job and speeds installation
• Metalized facing for applications requiring a foil-style finish

Compatibility

Designed for use with Class 1 flexible duct systems, including installations involving polyethylene and stainless steel duct surfaces, in applications where UL 181 B-FX listed tape is required by code.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified mechanical contractor in accordance with local mechanical codes and UL 181 application requirements. Before applying, ensure duct surfaces are clean, dry, and free of dust or oils to achieve full adhesive contact. Power down the air-handling system before working on duct connections to prevent displacement of unsealed joints during installation. Consult the authority having jurisdiction for any project-specific inspection or listing requirements.

Technical Specifications

• Width: 3 inches
• Tape Type: Metalized cloth duct tape
• Adhesive Type: Rubber-based
• Listing: UL 181 B-FX
• Unit of Measure: Each

Standard Information

• Brand: AVERY DENNISON
• Manufacturer Part Number: 9573met