WATER BASED, SURFACE RETARDER FOR CONCRETE AND MORTAR
NIROSET SR is a medium viscosity, liquid retarder used for achieving an exposed aggregate finish on concrete by retarding the setting of cement paste in the surface matrix of concrete and then removing it. The surface retarder is applied on the formwork or sprayed on the freshly poured concrete surfaces to effect retardation of the cementitious paste in the top surface layer.
NIROSET SR is recommended for all concrete where it is desired to obtain an exposed aggregate finish or a keyed surface for a superior bond with subsequently placed concrete or mortar layer. The variable depth of retardation allows considerable flexibility to architects in using different shapes and sizes of aggregate to produce attractive patterns of exposed aggregates on cast in-situ or precast panels. It can also be used to eliminate cold joints.
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