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Sikaswell S2

Hydrophilic Polyurethane Sealant Waterstop.

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.


Joint sealing:

  • Construction joints Pipe and steel work penetrations through walls and floor slabs
  • Around all types of penetrations and construction joints
  • Construction joints in cable ducts, etc.


  • 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

Product specification sheet

product sheet pdfSikaswell S2 product specification sheet opens in a new window


Sika Australia

Sika Australia logo
As a specialty chemical supplier for the building and construction industry, Sika Australia prides itself on being technically driven and project-motivated. Product line features high-quality concrete admixtures, specialty mortars, sealants and adhesives, damping and reinforcing materials, structural strengthening systems, industrial
  • Australasian Corrosion Association
  • Association for Materials Protection and Performance
  • Illawarra Innovative Industry Network
  • NACE International
  • The Society of Protective Coatings