Surface Pretreatments

Most substrate materials in as-received condition (unprepared) are not receptive to adhesives and therefore require some form of surface pretreatment to improve their adhesion characteristics.

Surface pretreatment processes broadly fall into the following categories:


  • Cryoblasting
  • Gritblasting
  • Peel-ply
  • Silicon carbide abrasion
  • Sodablasting
  • Water jet
  • Wire wool


  • Acid etching
  • Anodising
  • Detergent wash
  • Primer
  • Solvent cleaning


  • Corona discharge
  • Excimer laser
  • Flame
  • Plasma


For demanding applications combination of above pretreatments may be used to achieve optimum surface condition for initial adhesion and long term durability of bonded joints.



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