3M 7000124007 Duct Tape 2 in Yellow Series 3900

Product Description

The 3M 7000124007 is a yellow polyethylene foam duct tape from the 3M Series 3900 line, designed for bundling, color coding, holding, protecting, and sealing in HVAC, plumbing, and general trade applications. The tape measures 2 inches wide and 8.1 mil thick, with a rubber adhesive that delivers 32 pounds per inch of tensile strength. It handles operating temperatures up to 200 degrees F, making it suited for environments where thermal exposure is a routine concern. Installers and service techs reach for this tape when a durable, conformable hold is needed on irregular surfaces or ductwork assemblies.

Series 3900 duct tape is a go-to for HVAC technicians handling light duct sealing, bundling wire or pipe runs, and color-coding service lines. Each roll provides up to 54.8 meters (approximately 59.9 yards) of usable length at 2 inches wide, giving a tech enough material to complete most single-trade tasks from a single roll. The yellow color aids visual identification in multi-trade environments where distinguishing taped assemblies by color is part of the workflow.

Key Features

• Rubber adhesive with 32 lb per inch tensile strength for a firm, lasting bond
• Polyethylene foam backing at 8.1 mil thickness for conformability and tear resistance
• Rated to 200 degrees F maximum operating temperature
• Yellow color supports color-coding and visual identification in multi-trade installs
• Meets ASTM E-84 and UL 723 standards for flame spread and smoke development
• Roll length up to 54.8 meters supports bundling, holding, and sealing tasks from a single roll

Compatibility

Designed for general-purpose duct tape applications including bundling, color coding, holding, protecting, and sealing across HVAC, plumbing, and mechanical trade work.

Installation Notes

Apply to clean, dry surfaces free of dust, oil, and moisture for best adhesion. HVAC technicians should verify that duct sealing applications meet local code requirements, as some jurisdictions require mastic or listed foil tape for pressure-rated duct systems. Store the roll at room temperature to maintain adhesive performance. Do not exceed the 200 degrees F rated operating temperature.