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The 3M 7100139300 is a high-performance duct tape designed for both permanent and temporary bonding applications in indoor and outdoor environments. Sold as the 8979N in Nuclear Slate Blue, this tape features a 12.1 mil total thickness and comes in a 96mm wide by 54.8 meter roll. Its unique construction allows clean removal from most opaque surfaces with little or no adhesive residue when removed within 6 months of application. The backing provides UV resistance for up to one year of outdoor exposure, making it a reliable choice for HVAC techs, contractors, and facilities maintenance crews working in variable conditions.
This tape is suited for a wide range of commercial and industrial applications including HVAC duct sealing, temporary masking, surface protection, and general-purpose bundling or repairs. Its outdoor durability and clean-removal characteristics make it practical for both short-term job-site use and longer-term installations where re-access may be required. Contractors working on mechanical systems, building envelope projects, or general construction tasks will find this tape adaptable to a variety of substrates and conditions.
Designed for use on most opaque surfaces in commercial and residential HVAC, construction, and general maintenance applications where a UV-resistant, removable duct tape is required.
Surface should be clean, dry, and free of dust or grease before application to ensure proper adhesion. For HVAC duct applications, verify that the surface temperature and material are within the tape's rated operating range before installation. No special tools are required, but a tape dispenser or cutting tool is recommended for clean, consistent cuts on large rolls. For temporary applications, plan removal within the 6-month window to maintain clean-release performance.
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