3M VHB 4646F Dark Gray Double-Sided Tape (various sizes)

3M™ VHB™ 4646F is an exceptionally strong, double-sided foam tape designed for permanent and aesthetic bonding of metals and other high surface energy materials. Thanks to the use of a 0.6 mm thick firm foam and a general-purpose acrylic adhesive, the tape provides immediate and reliable holding even in high-temperature environments. VHB™ bonding technology eliminates the need for mechanical fastening methods, ensuring cleanliness, time savings, and project aesthetics.

Technical specification:

• Color: dark grey
• Thickness: 0.6 mm
• Width: 12 mm, 19 mm
• Length: 33 m
• Adhesive type: general-purpose acrylic
• Carrier: acrylic foam
• Temperature resistance: high – suitable for heat treatment and painting
• Compatibility: stainless steel, aluminum, galvanized steel, glass, other HSE substrates

Application:

• Bonding panels and stiffening frames
• Mounting decorative materials and signage
• Installation of nameplates and ornaments
• Bonding structures exposed to high temperatures (e.g., before powder coating)
• Industrial applications in the metalworking, electronics, home appliance, and transport industries

Benefits and features:

✅ Durable and fast fastening – ready for loading almost immediately after application
✅ Aesthetic effect – no visible joints or drilling
✅ Temperature and environmental resistance – ideal for applications with heat treatment
✅ Versatility of application – adhesion to metals and high surface energy materials
✅ Cleanliness and order – no need for sanding, drilling, or welding

Application tips:

Surfaces should be thoroughly cleaned before application. The tape should be applied at temperatures above 15°C, pressing firmly onto the surface. Full strength is achieved after 72 hours. Thanks to its viscoelastic properties, the tape conforms to surface irregularities and effectively absorbs vibrations.