Sika® WT-240 P

Permeability Reducing Admixture

Sika® WT-240 P is an integral powdered crystalline based permeability reducing admixture (PRA) for use in various watertight concrete applications. Sika® WT-240 P meets the requirements of ASTM C 494 Type S and is NSF/ANSI Standard 61 certified.

Sika® WT-240 P is a plant added crystalline based permeability reducing admixture. Sika® WT-240 P uses a unique combination of active ingredients, which react with the moisture within the concrete and with various products of the cement hydration process. This interaction forms insoluble compounds throughout the capillary system in concrete matrix, resulting in the reduced ability of concrete to conduct water flow.     Use of Sika® WT-240 P in watertight concrete application can result in:
  • Lower construction cost compare to traditional types of waterproofing.
  • Simple one-step use results in reduced application time and faster construction process.
  • Uniform waterproofing throughout the entire concrete volume.
  • Improved resistance against hydrostatic pressure.
  • Elimination of risk related to surface damage during construction process.
  • Ability to seal concrete cracks up to 0.016 in (0.40 mm).
  • Easy application due to repulpable bags.
  • Meets the requirements of ASTM C 494 Type S.
  • NSF/ANSI Standard 61 certified.