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The 3M 7100148262 is a white vinyl duct tape sold under the 3M 3903 product line. It measures 2 inches wide by 50 yards long with a 6.5 mil gauge backing. This tape is used to seal, bundle, color-code, and protect surfaces in HVAC, mechanical, and general trade applications. The vinyl construction provides a conformable, moisture-resistant bond suitable for use on ductwork, pipes, wire bundles, and other smooth or semi-smooth surfaces. Each roll is individually wrapped. Licensed HVAC technicians, plumbers, and mechanical contractors are the primary installers of this product.
This tape is suited for residential and light commercial applications where a flexible, hand-tearable vinyl tape is needed. Common uses include sealing joints on sheet metal ductwork, color-coding pipes or conduit, patching insulation jacketing, and temporary surface protection during installation or service work. It performs well in moderate-temperature, low-moisture environments typical of mechanical rooms and air-handler installations.
Designed as an OEM-style replacement and general-use vinyl duct tape for residential and commercial HVAC, plumbing, and mechanical trade applications on smooth and semi-smooth surfaces.
This tape is applied by hand and requires no special tools. Surface preparation is important — clean and dry the substrate before application to ensure full adhesive contact. This product is not rated as a primary air barrier sealant under SMACNA or UL 181 standards; verify local mechanical code requirements for ductwork sealing before use. Store rolls away from direct heat and sunlight to preserve adhesive performance.
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