3M 7000124256 Duct Tape 3 in 5.8 Mil Silver Polyethylene

Product Description

The 3M 7000124256 is a silver polyethylene foam duct tape from the 3M Series 1900 line, designed for holding, sealing, and identifying applications in residential and light commercial settings. It measures 3 inches wide and 50 yards long, with a 5.8 mil total thickness that provides durable, conformable coverage over irregular surfaces. The rubber adhesive bonds firmly to common substrates including metal ductwork, plastic sheeting, and vapor barriers. With a tensile strength of 16 lb/in, this tape resists tearing under moderate mechanical stress. Licensed HVAC technicians, plumbers, and general contractors are the primary installers for this product type.

This duct tape is suited for a broad range of trade applications including HVAC duct bundling and temporary sealing, pipe insulation jacketing, vapor barrier seams, and color or zone identification tasks on mechanical systems. The silver color aids visual identification in utility and mechanical spaces. It performs across a wide temperature range, rated up to 93 degrees C, making it appropriate for use in attics, crawlspaces, and equipment rooms where ambient temperatures vary seasonally. Each roll is sold individually.

Key Features

• 3 inches wide by 50 yards long for extended coverage per roll
• 5.8 mil polyethylene foam construction resists moisture and abrasion
• Rubber adhesive provides strong, immediate tack to metal, plastic, and insulation surfaces
• 16 lb/in tensile strength withstands moderate pull forces without tearing
• Rated to 93 degrees C maximum operating temperature
• Silver color suitable for mechanical and utility identification

Compatibility

Designed as a general-purpose duct tape suitable for HVAC, plumbing, and construction trade applications requiring holding, sealing, or surface identification.

Installation Notes

Clean and dry all surfaces before applying tape to ensure full adhesive contact. No tools are required for application, though a tape dispenser or utility knife is recommended for clean cuts. Avoid stretching the tape during application to prevent edge lifting over time. Follow applicable mechanical and building codes when using tape as part of a duct sealing assembly, as some jurisdictions require mastic or listed foil tape for air-barrier compliance.