Adhesive Tape Materials And Whole Set Solutions

3M 4991

3M 4991

3M 4991 is a gray, 0.090 in (2.3 mm), multi-purpose acrylic adhesive with a conformable, foam core.
It can replace rivets, welds, and screws. The fast and easy-to-use permanent bonding method provides high strength and long-term durability.
It offers design flexibility with its viscoelasticity and powerful ability to bond to a variety of surfaces.

  • Brand: 3M
  • Model No.: 4991
  • Color: Grey
  • Thickness: 2.3 mm
  • Foam Density: 720 kg/m³
  • Width: Cutting customized width
  • Die-cutting: Any shape and any size
  • Samples: Free
Data Sheet
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3M 4991 Data Sheet

3M 4991 TDS
Adhesive TypePlasticiser Resistant
Thickness (ASTM D-3652)2.3 mm
Foam Density720 kg/m³
Adhesive CarrierAcrylic Foam (Closed Cell)
LinerRed Polyethylene Film
Tape ColourGrey
Shelf Life 24 months from date of manufacture when stored in the
original carton at 20°C & 50 % Relative Humidity
Peel Adhesion to
Stainless Steel
35 N/10mm
Static Shear Strength
(Stainless Steel)
1000 g @ 22°C
500 g @ 66°C
500 g @ 93°C
Max (minutes/hours)
Max Continuous
120 °C
90 °C
Normal Tensile
(Aluminium T-Block)
415 kPa
Solvent ResistanceHigh

3M 4991 Features

  • The fast and easy-to-use permanent bonding method provides high strength and long-term durability
  • Virtually invisible fastening keeps surfaces smooth
  • Can replace mechanical fasteners (rivets, welds, screws) or liquid adhesives
  • Gray, 0.090 in (2.3 mm), multi-purpose adhesive, and conformable acrylic foam core offers a good balance of strength and conformability
  • Eliminate drilling, grinding, refinishing, screwing, welding, and associated clean-up
  • 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

3M 4991 Applications

  • Decorative material and trim
  • Nameplates and logos
  • Electronic displays
  • Panel to frame
  • Stiffener to panel
  • Cutting or slitting to the length and width required by the customers
  • Laminate liner or other materials
  • Die cut according to customer's drawing

Get in touch

Contact Us Get The Best Quote
Or Free Samples
(86) 158 7555 3143


NO.57 Houting Second Industry Area Shajing Baoan Shenzhen China 518104
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