3M 7000049609 Sealing Tape 2 Inch Beige

Product Description

The 3M 7000049609 is a sealing tape designed for use on difficult-to-stick surfaces, including damp or wet substrates. It features a translucent proprietary film backing paired with a high-tack acrylic adhesive delivered on a split release liner. The backing is thin and conformable, allowing it to fit into corners and irregular surfaces without lifting. The adhesive resists heat and will not melt or stain at elevated temperatures, making it suitable for building envelope and weatherization applications. HVAC, plumbing, and construction trades use this tape where a reliable air and moisture barrier is required at seams, joints, and penetrations.

This tape is well suited for residential and light commercial construction and retrofit work. Its waterproof membrane and air barrier properties make it appropriate for sealing around windows, doors, duct penetrations, and wall assemblies where moisture intrusion or air leakage is a concern. The aggressive acrylic adhesive performs at both low and high application temperatures, extending its usable range across climates and seasons. The split liner design allows for accurate placement and fast application in tight or confined spaces.

Key Features

• High-tack acrylic adhesive bonds to difficult and damp surfaces
• Waterproof membrane provides a continuous moisture barrier at seams and joints
• Functions as an air barrier to reduce infiltration at building envelope penetrations
• UV-resistant formulation rated for up to 12 months of exposure
• Adhesive will not melt or stain when exposed to elevated temperatures
• Thin, conformable backing fits corners and irregular substrates without bridging
• Split release liner enables fast, accurate positioning during application

Compatibility

Designed as an OEM-style replacement sealing tape for building envelope, weatherization, and HVAC duct sealing applications on difficult-to-stick or damp surfaces.

Installation Notes

Installation is typically performed by HVAC technicians, plumbers, or construction tradespeople working on air and moisture barrier assemblies. Clean and dry the substrate as much as conditions allow before applying, even though the adhesive is rated for damp surfaces. Remove the split liner in stages for accurate placement, pressing the tape firmly across the full surface to ensure full adhesive contact. Follow applicable building codes and manufacturer guidelines for air barrier continuity at joints and penetrations.