SikaSwell® S-2

Polyurethane Hydrophilic Swellable Sealant

SikaSwell® S-2 is a 1-part polyurethane hydrophilic sealant which swells in contact with water to seal all types of construction joints and penetrations in concrete.

  • Easy to apply
  • Good adhesion to various substrates
  • Optimised expansion rate, therefore no damage to fresh concrete during curing
  • Highly economical
  • Swells in contact with water
  • Permanently water resistant
  • Adaptable to fit many different detail tasks