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The 3M COMPANY 3920-RD is a multi-purpose red duct tape designed for general-purpose bonding, sealing, and color-coded organization tasks. The tape measures 2 inches wide by 20 yards long, providing substantial coverage per roll. Its cloth-reinforced backing tears easily by hand without the need for a blade or scissors, and the adhesive applies smoothly to flat and curved surfaces alike. The waterproof backing helps resist moisture exposure in typical service environments. This tape is well suited for discrete repairs, crafts, decorating projects, and color-coded organization systems used by tradespeople and facility maintenance personnel.
This tape is commonly used across residential, commercial, and light industrial settings. Its red color makes it a practical choice for color-coding pipes, conduit runs, storage containers, cable bundles, and equipment. Facility maintenance technicians, tradespeople, and service professionals use color-coded duct tape as a quick visual identification tool on job sites and in mechanical rooms. It also sees regular use in general repair, temporary patching, and bundling applications where a hand-tearable, waterproof tape is needed.
Designed as a general-purpose duct tape suitable for use on a wide range of smooth, semi-smooth, and curved surfaces in maintenance, trade, and general repair applications.
Clean and dry the target surface before applying the tape to ensure proper adhesion. Hand-tear the tape to length along the cloth backing grain for a clean edge. For color-coding or labeling applications, press the tape firmly along its full length to prevent edge lift. This tape is not rated as a listed duct connector for HVAC duct systems under mechanical codes — verify code compliance for any regulated application.
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