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.

  • 1-part, easy and fast to apply
  • Highly economical joint sealing solution compared to other systems
  • Versatile solution for joints and details
  • Optimised expansion rate, no damage to fresh concrete
  • Permanently water resistant (wet & dry cycles)
  • Good adhesion to various substrates