3M 7000049207 Duct Tape 4 in 12.1 Mil Blue Polyethylene

Product Description

The 3M 7000049207 is a heavy-duty polyethylene foam duct tape from the 3M Series 8979 line, designed for professional trade applications across HVAC, plumbing, and mechanical work. At 12.1 mil thick and 4 inches wide, it delivers a tensile strength of 36 lb/in — enough for demanding bundling, sealing, and joining tasks. The rubber adhesive bonds firmly to common substrates and holds up to a maximum operating temperature of 200 degrees F. The blue color aids in quick identification on job sites, and the roll ships as a single unit weighing 3.87 pounds.

This tape is suited for residential and commercial trade environments where a reliable, multi-purpose duct tape is needed. Common applications include box closing, bundling, holding, identifying, joining, pipe bundling, protecting, reinforcing, sealing, splicing, and tabbing. HVAC technicians, plumbers, and general mechanical contractors will find it applicable across a wide range of install and service scenarios. Each roll provides 54.8 meters (approximately 36 to 71.9 yards) of usable tape length.

Key Features

• Polyethylene foam tape construction at 12.1 mil thickness for durability and conformability
• Rubber adhesive provides strong, reliable bonding to a variety of surfaces
• 36 lb/in tensile strength handles bundling, sealing, and mechanical joining tasks
• Rated up to 200 degrees F maximum operating temperature
• Blue color for easy job-site identification and organization
• Meets ASTM E-84 and UL 723 standards

Compatibility

Designed for general trade use across HVAC, plumbing, and mechanical applications including pipe bundling, duct sealing, and surface protection tasks where a polyethylene foam duct tape with rubber adhesive is specified.

Installation Notes

Surface should be clean, dry, and free of oil or dust before application to ensure full adhesive contact. No special tools are required, though a tape gun or dispenser improves consistency on longer runs. When used in HVAC or mechanical systems, verify that the operating temperature of the installation point does not exceed the 200 degrees F rated maximum. Power down or isolate any active systems before applying tape near energized components or pressurized lines.