Sikaflex®-1a is a premium-grade, high performance, moisture-cured, one-component, polyurethane-based, non-sag elastomeric sealant. test dze

  • Capable of ± 35 % joint movement.
  • Eliminates time, effort, and equipment for mixing, filling cartridges and cleaning of equipment.
  • High elasticity – Cures to a tough, durable, flexible consistency with exceptional cut and tear resistance.


  • Designed for all types of joints with maximum depth of 13 mm (1/2 in) and a maximum expansion of 35 %.
  • Excellent for small joints and fillets: windows, door frames, reglets, flashing, glazing, and many construction applications.
  • Suitable for vertical and horizontal joints.
  • Many applications as an elastic adhesive between materials with dissimilar thermal coefficients of expansion.
  • Submerged conditions such as canal and reservoir joints.
  • Ideal for: Weatherproofing of joints between brickwork, blockwork, masonry, wood and concrete or metal frames; joints in walls, floors, balconies, around window or door frames: expansion joints; roofing applications.