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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
Features
Applications
Our Services

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
Temperature
Performance
Max (minutes/hours)
Max Continuous
(days/weeks)
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

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    +86-755-2301-3143
    +86-158-7555-3143
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