Sika® Rugasol® C Concrete Retarders / Concrete Surface.. WebThe retarding compound in Sika® Rugasol® C combines with cement at the surface and delays the normal hydration for approximately 1-2 days (high cement contents and temperatures will reduce the retardation). After retardation has finished, the concrete.

WebSika® Retarder-22 is a phosphate based liquid admixture that slows the cement hydration; delaying the initial set in direct proportion to the dosage used. After the planned delay in.