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Waterproofing Admixtures

Product Definition

HydroPlast® Waterproofing Chemical Admixture for Concrete Waterproofing Admixtures – HydroPlast N is a modified lignosulphonate based chemical admixture reducing the surface absorption and water permeability of concrete. HydroPlast N enhances the flowability of fresh concrete.


  • Waterproofing Admixtures – HydroPlast N is recommended for use in the applications below.
  • To reduce the low-pressure or unpressurised water permeability of concrete.
  • Swimming pool, open channel and tunnel segment constructions.
  • Concretes designed for wastewater treatment plants, dams, culverts and water reservoirs.
  • Concrete elements under the high risk of water absorption by capillary suction.
  • To reduce water ingress in tidal and splash zone of water structures.

Advantages and Properties

  • Enhances the impermeability of concrete by reducing the size, number and continuity of capillary pore structure of the cement paste.
  • Enhances durability due to the decreased water permeability of the cementitious paste.
  • Improves the workability without increasing the water content.
  • Reduces shrinkage.
  • Does not contain chloride or any other substances that may cause corrosion.