3M 7000045495 Fast N Firm Seam Sealer 1/10 Gal

Product Description

The 3M 7000045495 is a single-component seam sealer packaged in a 1/10-gallon cartridge, designed for sealing seams, joints, and gaps in HVAC ductwork, sheet metal assemblies, and related metal fabrication applications. It dispenses cleanly from a standard cartridge gun and cures to a firm, durable bead that resists air infiltration and moisture. Weighing 1.16 pounds per cartridge, the unit is manageable for overhead or confined-space work. Licensed HVAC technicians and sheet metal contractors are the primary installers of this product.

This seam sealer is suited for residential and light commercial HVAC installations where duct seams, flanges, and mechanical joints require an airtight, moisture-resistant seal. It is well-matched to sheet metal duct fabrication and field seaming tasks where a fast-setting, firm-bodied compound is preferred over tape-only methods. The cartridge format reduces waste and supports consistent bead application across multiple joints on a single service call.

Key Features

• Firm-curing formula maintains bead integrity under duct system pressure and vibration
• 1/10-gallon cartridge format compatible with standard cartridge dispensing guns
• Single-component — no mixing required before application
• Sold individually; available in cases of 12 for stocking purposes
• Compact 1.16-pound unit weight suits overhead and tight-clearance installs

Compatibility

Designed as an OEM-style seam sealer for use on sheet metal ductwork, HVAC flanged joints, and similar metal seam applications in residential and commercial mechanical systems.

Installation Notes

Installation is typically performed by licensed HVAC technicians or sheet metal workers in accordance with SMACNA ductwork sealing standards and local mechanical codes. Power down the air handling system before applying sealer to duct seams. Allow adequate cure time before restoring system pressure and airflow. Use appropriate cartridge gun to maintain a uniform bead and avoid over-application at joints.

Technical Specifications

• Package Size: 1/10 gallon cartridge
• Weight: 1.16 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 12
• UPC: 00051135085059

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000045495