ViscoFlow is a polycarboxylate, ether-based superplasticizer (PCE) engineered to achieve a significantly enhanced slump retention without additional retardation. The first component, the backbone carboxyl, is responsible for the attainable water reduction, initial slump, and mixing time. The second component, the side chains, determine the slump-keeping capability of the superplasticizer. Sika. 800-933-7452