• Designed for 350°F (175°C) cure
• Good flexibility and shear strength at service temperatures from -67°F to 500°F (-55°C to 260°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

Descripción
Our 3M™ Scotch-Weld™ Structural Adhesive Film AF 31 is a yellow colored adhesive film that provides long-term durability and meets specific challenges for metal-to-metal bonded structures where high temperature performance is desired.

Ready to Fly
3M™ Scotch Weld™ Structural Adhesive Film AF 31 provides excellent performance with easy to use shop handling properties. With good peel strength, AF 31 provides reliable, long term durability and meets the specific challenges of metal to metal bonded structures.

The following 3M primer is compatible with AF 31:
3M™ Scotch Weld™ Structural Adhesives Primer EC 2174
AF 31 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 500°F ( 55°C to 260°C) for use in challenging designs in multiple environments.

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

Aspectos Destacados
Designed for 350°F (175°C) cure
Good flexibility and shear strength at service temperatures from -67°F to 500°F (-55°C to 260°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