Carlisle Hardcast 326176 Seam Tape 6 in X 100 Ft Roll

Product Description

The CARLISLE HARDCAST 326176 is a seam tape designed for sealing and reinforcing joints, seams, and connections in duct systems and related HVAC assemblies. Supplied in a 6-inch-wide, 100-foot roll, this tape provides consistent coverage across duct board, sheet metal, and similar substrates. It is intended for use by licensed HVAC technicians and sheet metal contractors who require a reliable, code-acceptable sealing solution for low-pressure and medium-pressure duct construction. The 100-foot roll length reduces the need for mid-job restocking on larger installations.

This seam tape is suited for residential and light commercial HVAC ductwork applications where seam integrity is critical to system efficiency and air leakage control. It is commonly applied during new duct fabrication, duct board panel assembly, or duct repair work. The 6-inch width makes it well suited for covering longitudinal seams on duct board systems as well as transverse joints where a wider seal is required. HVAC installers and service technicians will find this format practical for both rough-in work and retrofit sealing projects.

Key Features

• 6-inch width provides broad coverage for duct board seams and transverse joints
• 100-foot roll length reduces changeovers on large duct fabrication jobs
• Designed for use on duct board, sheet metal, and related HVAC substrates
• Supports air leakage control requirements in duct system assemblies

Compatibility

Designed as an OEM-style seam sealing solution for residential and commercial HVAC ductwork assemblies, including duct board panel systems and sheet metal duct construction.

Installation Notes

Seam tape installation is typically performed by licensed HVAC technicians or sheet metal contractors in accordance with SMACNA guidelines and local mechanical codes. Ensure the substrate surface is clean, dry, and free of dust or oils before application to achieve full adhesion. Power down the air handling system before working inside or around duct assemblies. Avoid stretching the tape during application, as this can reduce contact area and compromise seal quality.

Technical Specifications

• Width: 6 inches
• Roll Length: 100 feet
• Weight: 12 pounds
• Order Increment: 1

Standard Information

• Brand: CARLISLE HARDCAST
• Manufacturer Part Number: 326176