RETARDING SUPER PLASTICIZERS APPLICATION & FEATURES GEEKAY PLAST-200--RS(G)is a high performance modified naphthalene sulphonate based super plasticizer cum retarder with a combination of water reducing resins ideally suited for ready mixed concrete industries. COMPOSITION &CONDITIONS 0.5% to 2% GEEKAY PLAST-200--RS(G)by weight of cement. Maximum dosage can be increased depending on the required early strength, set retardation, and presence of mineral admixtures in the mix subject to corresponding modifications in the concrete mix