3M 7000048686 Vhb Tape 4979F Black 0.75in X 36yd 62 Mil

Product Description

The 3M 7000048686 is a closed-cell acrylic foam tape sold under the VHB 4979F series, designed for high-strength bonding in demanding construction, HVAC, and industrial assembly applications. The tape measures 0.75 inches wide by 36 yards long with a thickness of 62 mil, making it well suited for gap-filling and conforming bonds on irregular surfaces. A PE film liner protects the pressure-sensitive adhesive until application. The double-sided construction bonds high and medium surface energy substrates without mechanical fasteners. Installation is typically performed by sheet metal workers, glaziers, HVAC technicians, and general contractors requiring a reliable structural or semi-structural adhesive bond.

This tape is used in applications where cushioning, vibration damping, and impact resistance are required alongside a strong adhesive bond. Common uses include panel attachment, sign mounting, weather sealing, and equipment assembly in both residential and light commercial settings. The closed-cell acrylic foam core provides plasticizer resistance, making it compatible with many PVC and plasticized substrates. The black color is suitable for applications where tape visibility is a concern. UL listing 746C confirms suitability for use with polymeric materials in evaluated applications.

Key Features

• 62 mil closed-cell acrylic foam construction conforms to irregular surfaces and fills minor gaps
• Double-sided pressure-sensitive adhesive bonds high and medium surface energy substrates
• PE film liner for clean, controlled application
• Provides cushioning, vibration damping, and impact resistance
• Plasticizer resistant for use with PVC and similar materials
• UL listing 746C for polymeric material compatibility

Compatibility

Designed for bonding high and medium surface energy substrates including metals, glass, and select plastics in construction, HVAC panel assembly, and industrial mounting applications.

Installation Notes

Surface preparation is critical for VHB-style foam tapes — clean, dry, and solvent-wiped surfaces yield the strongest bonds. Apply firm, even pressure across the full tape length immediately after positioning to activate the pressure-sensitive adhesive. No tools beyond a roller or hand pressure are typically required. Allow adequate dwell time before subjecting the bond to full load per job requirements.

Technical Specifications

• Tape Thickness: 62 mil
• Width: 0.75 inches
• Length: 36 yards
• Color: Black
• Construction: Closed-cell acrylic foam, double-sided
• Liner: PE film
• Weight: 1.7 pounds
• Unit of Measure: Roll
• Certification: UL 746C
• UPC: 00021200262364

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000048686