Mounting tape 3M Scotch VHB 4941, 12 mm x 33 m, grey, double-sided acrylic foam

3M Scotch VHB 4941 mounting tape is a double-sided acrylic foam tape 12 mm wide and 33 m long in grey. It provides a permanent, high-strength bond on a variety of smooth substrates and is intended for applications that require durable, vibration-resistant adhesion. The tape is formulated to conform to irregular surfaces, distribute stress across the bonded area and replace mechanical fasteners in many interior and exterior uses.

Advantages

The acrylic foam construction delivers strong shear and peel resistance while maintaining flexibility for thermal expansion and contraction. Its closed-cell foam core reduces creep and gap-filling needs, and the pressure-sensitive adhesive provides immediate handling strength. The grey color offers discreet appearance on many common materials and helps to hide joint lines. The tape’s long roll length and narrow width make it convenient for continuous runs and precision mounting.

Suitable for

• Mounting decorative trims and profiles
• Attaching nameplates, signs and panels
• Bonding metal, glass, painted or coated surfaces
• Securing emblems and lightweight fixtures where mechanical fasteners are undesirable

Key specifications

• Backing material: closed-cell acrylic foam
• Adhesive type: pressure-sensitive acrylic
• Width: 12 mm
• Length: 33 m
• Color: grey
• Mounting style: double-sided
• Typical performance: high shear and peel resistance, vibration-damping properties

How to use

Ensure both bonding surfaces are clean, dry and free of oil, dust and loose particles. For best results, clean surfaces with isopropyl alcohol and allow to evaporate before application. Cut the required length of tape and apply firm pressure along the bond line to activate the adhesive; apply sustained firm pressure for several seconds to enhance initial tack. Allow full adhesive strength to develop over time — typical edge-to-edge contact and temperature influence final cure. Avoid immediate heavy loads where possible until full strength is achieved.

Usage recommendations

Use at recommended application temperatures and avoid bonding to dirty, rough or highly porous substrates. For critical structural applications, test adhesion on representative materials and consider complementary mechanical fastening if required. Store rolls in a cool, dry place away from direct sunlight to preserve adhesive performance.