Application of structural adhesive for small parts assembly

Small Joint Assemblies

3M solutions hold tight and last longer against stress points.

Create lasting bonds for Insertion and Overlap Joints

  • Small joints are typically irregularly shaped with only a small area available for bonding. The smaller, more irregular the joint, the greater the challenge to create a firm hold that can withstand heavy wear. Generally, these are insertion or overlap joints, or a combination of the two.

    Typical requirements for Small Joint Assemblies include:

    • Low-viscosity liquids for tight-fitting parts
    • Vibration resistance
    • Very high strength
    • Ability to bond dissimilar materials

Small Joint Assembly Applications

  • Polished silver gold club against a white background with shadow.
    Metal Fabrication

    Shaft-hosel designs transfer the impact force of a golf club head when striking a ball.

  • A small side table with lampshade and bedside accessories.

    Mortise and tenon joints rely on the strength of the wood to help resist stress.

  • Application of 3M glue for small plastic pieces
    Rubber and Plastic Parts Assembly

    Allow tight adhesion of low surface energy materials with chemical resistance for durable and strong adhesion.

3M™ Scotch-Weld™ Structural Adhesives

    • Acrylic, epoxy and urethane adhesives
    • Over 1000 psi in overlap shear strength
    • For highest strength, fatigue and environmental resistance
    • Excellent for metal-to-metal bonds
    • One part solvent-free adhesive
    • Reaches handling strength in 5–10 seconds
    • Best for small bond lines (<10 cm²)
    • Excellent for rubbers and plastics
    • Very tight bond lines with near instant strength
    • 100% solid
    • Thermoplastic resin
    • Reaches bond strength in seconds
    • Best for wood and plastic
    • Single component
    • Hot-applied thermosetting adhesive
    • Immediate strength and holding power
    • Final cured strength over 1,000 psi
    • Best for wood and plastic

Explore Industries

Design challenges of Small Joint Assemblies

  • Video of Saving Weight
    Saving Weight

    Learn more about how 3M solutions help you save weight and time with crucial Small Joint Assembly factors like vibration resistance, excellent bonding strength, and the ability to bond dissimilar materials.

  • Video of Bond Dissimilar Materials
    Bond Dissimilar Materials

    Replace traditional heavy fastening methods like screws and rivets, and have full design flexibility at your fingertips with 3M Small Joint Assembly solutions.

Application of structural adhesive on a metal substrate to illustrate the science of adhesion.

The Science Of Adhesion

Explore the science behind 3M Industrial Tapes and Adhesives’ strong bonds, and how it equips you with full design flexibility.


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