3M VHB Tape 4991

Product code: 4991

Manufacturer: 3M

Package size: 1 in x 36 yd

Shelf Life:

3M™ VHB™ Tape 4991 is a white, 0.120 in (3.0 mm), general purpose acrylic adhesive with a firm, foam core. 3M VHB 4991 is an excellent candidate to replace rivets, welds, and screws which could damage the original surface when applied.

3M 4991 is also specially formulated to offer design flexibility with its viscoelasticity and powerful ability to bond to a variety of surfaces.


  • Fast and easy-to-use permanent bonding method provides high strength and long-term durability
  • Virtually invisible fastening keeps surfaces smooth
  • Gray, 0.090 in (2.3 mm), multi-purpose adhesive and conformable acrylic foam core offers a good balance of strength and conformability
  • Creates a permanent seal against water, moisture and more
  • Pressure sensitive adhesive bonds on contact to provide immediate handling strength
  • Allows the use of thinner, lighter weight and dissimilar materials
  • UL GREENGUARD and UL GREENGUARD Gold Certified, contributing to LEED Credit
Part Number 4991
Color Gray
Tape Thickness 2.3mm
Adhesive Type Multi-Purpose Acrylic
Foam Type Conformable Acrylic Foam
Density 720 kg/m³
Release Liner – Type Polyester
Release Liner – Thickness 0.13 mm
Release Liner – Color Red

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