SikaFast®-321 S

Fast curing, 2-component toughened structural adhesive with shims

SikaFast®-321 S is an acrylic based, fast curing, flexibilized structural, 2-component adhesive with incorporated spacer shims (0.027 ─ 0.033 inch / 0.68 ─ 0.84 mm) to maintain uniform bond thickness. SikaFast®-321 S is for use in applications requiring quick fixturing for higher throughput. It is designed to efficiently transfer high loads and evenly distribute stresses. SikaFast®-321 S provides very good adhesion on various substrates and is suitable to replace mechanical fixation.  

  • Strength development within minutes after application
  • Superior low-temperature flexibility compared to other structural adhesives
  • Spacer for control of bond thickness
  • Adhesion to a wide range of substrates without or with limited surface preparation
  • High elongation and ductility
  • Good strength and impact resistance