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3M™ Scotch-Weld™ Structural Adhesive Film AF 32

Part Number AF 323M Product Number AF 323M ID 62159147065
  • Designed for 350°F (175°C) cure
  • Good flexibility and shear strength at service temperatures from -67°F to 350°F (-55°C to 175°C)
  • Easy application in a film form which can be pressure, heat or solvent tacked in position
  • Excellent retention of strength after aging in many environments
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Specifications
Attribute Name
Value
Application
Metal Bonding, Structural Bonding, Surfacing
Brand
Scotch-Weld™
Color
Tan
Product Details
  • Designed for 350°F (175°C) cure
  • Good flexibility and shear strength at service temperatures from -67°F to 350°F (-55°C to 175°C)
  • Easy application in a film form which can be pressure, heat or solvent tacked in position
  • Excellent retention of strength after aging in many environments
  • Yellow in color
  • Suitable for metal-to-metal bonding
  • Low flow allows for less post-bonding flash removal

Our 3M™ Scotch-Weld™ Structural Adhesive Film AF 32 is a yellow colored adhesive film that provides long-term durability and meets specific challenges for metal-to-metal bonded structures. It is available in multiple thicknesses depending on your needs.

Ready to Fly
3M™ Scotch-Weld™ Structural Adhesive Film AF 32 provides excellent performance with easy-to-use shop handling properties. With good peel strength, AF 32 provides a reliable, long-term durability and meet specific challenges for metal-to-metal bonded structures.

The following 3M primer is compatible with AF 32:

AF 32 supplies peel strength through a spectrum of environmental conditions and are easy to work with. Once cured it provides high bond strength from -67°F to 350°F (-55°C to 175°C) for use in challenging designs in multiple environments.

Scotch-Weld AF 32 Ultimate Tensile Stress

-67°F -55°C 9320 psi 64.2 MPa
75°F 24°C 2290 psi 15.8 MPa
180°F 82°C 763 psi 5.3 MPa
250°F 121°C 606 psi 4.2 MPa


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.

Multi-colored honeycomb panels for aircraft bonded with Scotch-Weld™ structural adhesive films.
3M adhesive films are designed to deliver superior mechanical performance in challenging conditions
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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