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3M™ Scotch-Weld™ Structural Adhesives EC-3964

Part Number EC-39643M Product Number EC-39643M ID 62396475402
  • Designed for 350°F (175°C) cure
  • 3M™ Scotch-Weld™ Structural Adhesive EC-3964 is a solution version of 3M™ Structural Adhesive Film AF 147
  • Can be sprayed on screen without filling holes
  • Typical use is to bond screen in sound suppression panels on aircraft engine nacelles
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Specifications
Attribute Name
Value
Adhesive Type
Epoxy
Application
Metal Bonding, Structural Bonding
Brand
Scotch-Weld™
Color
Light Tan
Cure Temperature
350 Degree Fahrenheit
Storage Environment
Freezer Storage
Surface Treatment
No
Product Details
  • Designed for 350°F (175°C) cure
  • 3M™ Scotch-Weld™ Structural Adhesive EC-3964 is a solution version of 3M™ Structural Adhesive Film AF 147
  • Can be sprayed on screen without filling holes
  • Typical use is to bond screen in sound suppression panels on aircraft engine nacelles
  • Outstanding performance in metal to metal and metal to honeycomb strength over a temperature range of -67 to 300°F (-55 to 150°C)

3M™ Scotch-Weld™ Structural Adhesive EC-3964 is a sprayable solution version of 3M™ Structural Adhesive Film AF 147. It is designed to bond screen-in-sound suppression panels on aircraft engine nacelles.

Ready to Fly
3M™ Scotch-Weld™ Structural Adhesive EC-3964 is a sprayable solution version of 3M™ Structural Adhesive Film AF 147. It is designed to bond screen in sound suppression panels on aircraft engine nacelles. Once cured it provides high bond strength from -67°F to 300°F (-55°C to 150°C) for use in challenging designs in multiple environments.

  Test Temperature
°F(°C)
Typical Value
psi(MPa)
Lap Shear Strength -67(-55)
75(24)
300(149)
4700(32.4)
4700(32.4)
1800(12.4)

Note: The following performance data have been obtained in the 3M laboratory and tested in accordance with ASTM D 3167.

  Test Temperature Typical Value
Floating Roller Peel 75°F (24°C) 31 piw (138 N/25 mm) AC

The fewer rivets you have in your aircraft the better.
Many of 3M's adhesive films are designed to bond composite panel or honeycomb sandwich panels for a variety of structural applications
What is Structural Adhesive Film?
The fewer rivets you have in your aircraft the better. Structural adhesive films enable the designer to get more innovative with their parts, and reduce the overall number of rivets required on your structure. This thermosetting modified epoxy in film form can be used for bonding a wide variety of substrates, including metal, honeycomb and composite. Structural Adhesive Films come in a variety of weights and thicknesses, minimizing the weight while maintaining the structural integrity.

The films are available in supported versions, which are typically used for monolithic bonding or honeycomb sandwich. They are also available in unsupported form for reticulation onto honeycomb. These films can be cured from temperatures as low as 180°F to as high as 350°F. Because these films are less messy and don't required mixing, they offer efficiencies in the design process. They are easier to use than typical paste adhesives.

3M is on the Leading Edge of Innovation
Adhesive bonding enables a more lightweight structure because it allows you to use more lightweight composite, as opposed to the metallic materials that were used in previous designs. Structural adhesive films are employed anywhere you are trying to bond metal to composite. This offers good erosion performance while minimizing weight.

Our Best for Your Best
3M is proud to partner with organizations across the spectrum of aerospace and related industries. Creating efficiencies, reducing process times and lowering aircraft weight is how we execute our never-ending mission to offer best-in-class adhesives, sealants and other products that effectively reduce costs on multiple fronts.

Learn More about 3M Aerospace

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