Bentonite Waterstop

Kuniseal C-31 is a composite product consisting of Bentonite and Mineral Oil solution, which is specifically designed to act as a moisture barrier in concrete construction joints.


  • No special adhesive required.
  • Installation time is reduced.
  • Long lasting, insitu durability.
  • Superior results in stopping moisture penetration.
  • Suitable for marine environment.


  • Concrete construction joints, both vertical and horizontal.
  • Foundation Joints.
  • Water Containing Structures
  • Insitu penetrations in concrete
  • H shaped beams

Comparison with traditional systems:

CharacteristicsTraditional SystemsGeoplast Reusable Formwork
Hindrance-Modular system
ResistanceLimitedUp to 60 kN/m2
Concrete adherenceRequires dismantling agentsBeing made of plastics, GEOTUB PANEL does not stick to concrete
Protection10%The best protection for the columns until the end of the operations
PlumbingRequires long operations and it is often inaccurateQuick and accurate thanks to the external structure that allows easy shoring and plumbing
Dismantling agentsRequiredNot required. Everitt Site Supplies recommend 'Kleen Kote' protection and release formula to maintain your forms in top condition.