1. 3M Canada

3M™ VHB™ Tape, 4991, grey, 1-1/2 in x 36 yd

3M ID 7000143546
  • Instant bonding
  • Smooth, clean appearance
  • High strength
  • Shock absorbing
 More...
Specifications
Applications
Alternatives to Rivetting or Welding, Impact resistant, Mounting and Trim Attachment, Panel to Frame/Stiffner to Panel Assembly, Semi-Structural Bonding, Small Joint Assembly, Vibration resistant
Application Temperature-Environment
50F-59F
Backing Material
Foam
Brand
VHB™
Carrier Material
Acrylic Foam
Core Size (Imperial)
3 in
Design Challenges
Impact & Shock Absorption, Noise Vibration & Harshness Control NVH
Flame Retardant
N/A
Foam Conformability
Conformable
Indoor/Outdoor
Both
Industries
Appliance, Construction, Electronics, General Industrial, Metalworking, Signage, Transportation
Maximum Operating Temperature (Celsius)
121 °C
Maximum Operating Temperature (Fahrenheit)
250 °F
Position
Better
Product Form
Roll
Set Time
<10 Second
Substrate
Bare Metal, Glass, HSE Plastics and Glass, LSE Plastics, Metal, Paint, Painted Surface, Easy-to-Bond (HSE), Plastic, Easy-to-Bond (HSE), Plastics (Flexible Vinyl), Rough Surfaces
Substrate 2
Bare Metal, Glass, HSE Plastics and Glass, LSE Plastics, Metal, Paint, Painted Surface, Easy-to-Bond (HSE), Plastic, Easy-to-Bond (HSE), Plastics (Flexible Vinyl), Rough Surfaces
Temperature Resistance - Initial
300 °F
Details
  • Instant bonding
  • Smooth, clean appearance
  • High strength
  • Shock absorbing
  • Even stress distribution
  • Dampens vibration
  • Allows the use of thinner, lighter weight and dissimilar materials

3M™ VHB™ Tape 4991 is a 9.0 mil thick conformable, double-sided, pressure-sensitive, closed-cell acrylic foam tape with a polyethylene (PE) film liner. 3M™ VHB™ Tape eliminates the need for rivets, bolts, screws and welds. It helps provide handling convenience, cushioning, damping, impact-resistance and plasticizer-resistance.

3M™ VHB™ Acrylic Foam Tape is comprised of closed-cell foam with pressure sensitive adhesive on two sides. This unique combination offers benefits that screws, rivets, welds and other types of mechanical fasteners just can’t match. In many situations, they can replace other permanent fasteners. They are made with acrylic foam which is viscoelastic in nature. This gives the foam energy absorbing and stress relaxing properties which helps provide these tapes with their unique characteristics. The acrylic chemistry helps provide outstanding durability performance. 3M™ VHB™ Tape 4991 bonds high and medium surface energy substrates.

Suggested Applications

  • Glass
  • Metal
  • Plastics (rigid PVC, plasticized vinyl, acrylic and polycarbonate)
  • Most powder-coated paints
  • Painted/sealed wood and concrete
  • Stiffener to panel
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