Retarders

  • Purpose of retardation: To extend the working time at a specific temperature.
  • Working time: The time after mixing during which the concrete can be correctly vibrated.
  • Free retardation: The initial setting is certain to start only after a specific time.
  • Targeted retardation: The initial setting starts at a specific time.

SikaTard® R

SikaTard R is a liquid set retarding/stabilising masonry mortar/concrete admixture. It meets the requirements of BS EN 934-3.

SikaTard®-930

SikaTard 930 is a liquid set retarding/stabilising concrete admixture. It meets the requirements of BS EN 934-2.

Sika® Retarder-50

Sika Retarder 50 is a liquid set retarding/stabilising concrete admixture. It meets the requirements of BS EN 934-2.