Structural Bonding - Acrylics


Acrylic adhesives are mainly used for high load transmission to replace common mechanical joining methods. Two parts bonded with such an adhesive  could be considered as structurally linked. Mechanical characteristics like high strength, high modulus and high adhesion have proven to be effective for  customer applications.


Advantages and Considerations

2-Part Acrylics

Advantages Considerations
  • High cure through depth
  • Room temperature cure
  • High peel and impact strength
  • Good environmental resistance
  • Bonds to moderately contaminated surfaces
  • Cure can be accelerated with heat
  • Fixture times (5 to 30 minutes)
  • Waste associated with static mix process
  • May have strong odour


2-Step Acrylics

Advantages Considerations
  • Fast fixture speed
  • Room temperature cure
  • No mixing required
  • High peel and impact strength
  • Good environmental resistance
  • Bonds to lightly contaminated surfaces
  • Cure can be accelerated with heat
  • Limited cure through depth (approx. 1 mm)
  • Activator may contain solvents
  • Activator requires controlled dispensing process
  • Adhesive may have strong odour


  • Simplifies construction by increasing strength/rigidity for load transmission
  • Prevents material fatigue and failure by achieving uniform transmission of loads (stress distribution) and by maintaining the structural integrity (no thermal or mechanical weakening of parts)
  • Saves production costs by replacing conventional mechanical fasteners (screws, rivets or welding)
  • Saves material cost and saves weight by reducing material thickness while maintaining load transmission characteristics
  • Allows the most varied substrate combinations, e.g. metal/plastics, metal/glass, metal/wood etc.
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