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Product Information
Technical Datasheet


Sika Waterbars Tricomer NB Type D are highly flexible waterbars made from PVC/NBR copolymer for sealing expansion joints in watertight concrete structures. They are available in a range of different types, shapes and sizes to suit different structures and applications.


Application Fields:

  • Joint sealing in concrete structures
  • Expansion joint sealing in in-situ concrete

Typical Structures:

  • Residential building basements
  • Commercial building basements, underground car parks
  • Water treatment plants
  • Dams

Principles for Application:

  • Design and installation principles according to DIN 18197
  • Jointing system in accordance with DIN 18197 and DIN 18541


  • High tensile strength and elongation
  • Permanent flexibility and high resilience
  • Suitable for medium water pressures and stress
  • Resistant to all natural mediums aggressive to concrete
  • Not bitumen resistant
  • Resistant to a broad spectrum of chemical agents (testing necessary for any specific situations)
  • Robust sections for handling on site
  • Weldable