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The 3M 7000123393 is a single-coated, open-cell urethane foam tape designed for sealing applications in HVAC, construction, and general trade work. At 250 mil (0.25 inches) thick, the soft, conformable foam compresses easily against irregular surfaces to block moisture, dust, and drafts. Each roll measures 0.75 inches wide by 18 yards long, making it practical for continuous sealing runs around panels, access doors, ductwork flanges, and enclosures. The charcoal gray finish suits most mechanical and electrical applications where appearance is secondary to seal performance. HVAC technicians, electricians, and general contractors reach for this tape when a compressible, conformable seal is needed without adhesive buildup or tearing.
This urethane foam tape is suited for residential and light commercial applications where a flexible, low-profile seal is required. Common uses include sealing gaps around duct joints, control panel enclosures, electrical boxes, and cabinet edges. The open-cell urethane construction allows slight compression under fastening pressure, conforming to uneven or slightly rough mating surfaces. The tape comes in roll form and is applied by hand, making it fast to deploy in the field or on the bench during equipment assembly or service.
Designed as an OEM-style sealing tape for use in HVAC duct assemblies, electrical enclosures, control panels, and general construction gasketing applications where a soft, conformable foam seal is required.
Clean and dry the mating surface before applying the tape to ensure full adhesive contact. Peel the liner and apply with steady hand pressure along the intended seal path, avoiding stretching the foam. For HVAC or electrical enclosure applications, confirm the tape is compatible with any solvents or cleaning agents present in the environment. Trained HVAC technicians, electricians, and sheet metal workers typically install this product as part of a broader sealing or assembly workflow.
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