SikaSwell® A is a sealant for joints used to seal structures

SIKASWELL® A | Joint Sealant

Swellable joint sealing profiles

  • Hydrophilic – swells in contact with water
  • Easy to apply
  • No welding required


Acrylic sealing profiles which swell in contact with water.

  • Waterproofing of construction joints (no expansion joints) on precast elements and penetrations, where an even surface can be expected
  • For use in contact with both drinking and fresh water (no seawater)
  • Sealing penetrations of pipes and steelwork
  • Sealing of holes and box-outs through walls and floor slabs



  • Easy to apply
  • Can be applied on different substrates
  • Highly economical
  • Swells in contact with water
  • Can swell into cracks and gaps
  • Long-term reliability tested
  • Resistant against water and various chemical substances
  • No hardening time required
  • No welding required
  • Adaptable to fit many different detailing tasks
  • Different types and dimensions available


Rolls packed in cardboard boxes



Available Colour
  • Red