3M 7000028871 Vhb Foam Tape 45 Mil 1 in X 36 Yd White

Product Description

The 3M 7000028871 is a white, double-sided, pressure-sensitive, closed-cell acrylic foam tape designed for demanding bonding applications. At 45 mil thick, it provides a firm yet conformable bond layer between high surface energy substrates such as metals, glass, and many plastics. The tape ships on a 1-inch-wide, 36-yard roll with a paper liner for clean handling during application. Licensed electricians, sheet metal fabricators, glaziers, and HVAC installers use this tape as a structural bonding solution where mechanical fasteners are impractical or undesirable. It meets UL listing 746C, confirming suitability for use with polymeric materials in electrical and electronic applications.

This tape is suited for residential and commercial construction, HVAC panel assembly, sign mounting, and industrial fabrication where a high-strength, viscoelastic bond is required. The closed-cell acrylic foam core provides cushioning, vibration damping, and impact resistance alongside the primary adhesive function. It performs well in applications that experience thermal cycling or minor surface irregularities that would prevent uniform contact with a thinner tape.

Key Features

• 45 mil total thickness for gap-filling and cushioning between bonded surfaces
• Double-sided pressure-sensitive adhesive bonds high surface energy substrates without primers on many surfaces
• Closed-cell acrylic foam core provides vibration damping and impact resistance
• Paper liner for clean, controlled application and die-cut compatibility
• UL listing 746C — suitable for use with polymeric materials in electrical and electronic enclosures
• White finish for applications where tape edge visibility matters

Compatibility

Designed for bonding high surface energy substrates including metals, glass, and compatible plastics; consult 3M surface preparation guidelines for specific substrate confirmation.

Installation Notes

Surface preparation is critical — clean all bonding surfaces with an appropriate solvent and allow to dry fully before applying the tape. Apply firm, uniform pressure across the entire bond area immediately after positioning; full bond strength develops over 24 to 72 hours at room temperature. Tape application and removal should be performed by qualified tradespeople familiar with structural bonding materials. Do not apply to surfaces below 50 degrees F, as cold substrates significantly reduce initial adhesion.

Technical Specifications

• Thickness: 45 mil
• Width: 1 inch
• Length: 36 yards per roll
• Color: White
• Construction: Closed-cell acrylic foam, double-sided pressure-sensitive adhesive, paper liner
• Unit of Measure: Roll
• Weight: 1.95 pounds
• Certification: UL 746C
• UPC: 00021200180927

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000028871