3M™ Structural Adhesive SA9844

  • 3M Product Number SA9844
  • 3M ID B5005289053

A two-part structural adhesive for use in automotive chassis and battery to structure assemblies

Controlled flow rheology optimized for injection joints

Robust bonding and impact resistance for aluminum, carbon fiber composites and more

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PDF (1) Copy 26Tech Data Sheet (PDF, 225KB)

Details

Highlights
  • A two-part structural adhesive for use in automotive chassis and battery to structure assemblies
  • Controlled flow rheology optimized for injection joints
  • Robust bonding and impact resistance for aluminum, carbon fiber composites and more
  • Excellent mechanical properties (shear and peel modes) and high wedge impact peel performance
  • Cures at room temperature with no additional heating required
  • Heat may be applied to accelerate cure times or to provide localized spot curing and fixturing
  • Compatibility with automatic dispensing equipment helps reduce cycle times
  • Parts are stable for storage and transport, with a shelf life of up to 12 months

3M™ Structural Adhesive SA9844 is a two-part epoxy adhesive that provides robust bonding, high impact resistance and good overall mechanical properties to prepared substrates such as aluminum and carbon fiber composites. It can be used in automotive chassis and primary structures as well as battery to structural assemblies.

  • gears icon

    Streamlined production

    3M™ Structural Adhesive SA9844 is ideal for injection bonding joints, allowing for clean assemblies, quick cycle times and robust processes. It can be dispensed with commercially available dispensing systems, facilitating automation.

  • thermometer icon

    Room-temperature curing

    3M™ Structural Adhesive SA9844 cures fully at room temperature, to enable a reduction in energy use associated with high temp cure.
    For faster curing, elevated temperatures (60–80°C) can be used depending on the cycle time and heating method. Thermal induction and local spot curing are optional and allow for geo fixing where needed.

  • design flexibility icon

    A two-part structural adhesive for design flexibility

    This adhesive provides consistent performance and reliable bonding strength under various process conditions, enabling a consistent, and repeatable process. It allows OEMs to enhance or potentially replace heavy mechanical fasteners such as welds, nuts and bolts, helping manage vehicle weight.

  • drawing of a car's internal structure
  • Recommended applications
    • Injection joints
    • Frame members
    • Floor and roof joints or panels
    • Battery to chassis integration

    3M can also assist in creating rules for injection joint design. We can help design new injection joints or in the conversion of existing nodal structural joints to injection joints.

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    Typical properties

    Application

    Bonding, Fatigue Resistance, Impact Resistance, Gap Filling, Body-in-White

    Product Usage

    Chassis, Battery Boxes, Battery Composite Housings, EV Batteries

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    Application Bonding, Fatigue Resistance, Impact Resistance, Gap Filling, Body-in-White
    Product Usage Chassis, Battery Boxes, Battery Composite Housings, EV Batteries