HydroBloc Si 741

HydroBloc Si 741 impregnation keeps mineral surfaces dry, clean and beautiful. The solvent composition carries the active agent deep into the structure. The reactive silane connects with the building material and creates an inseparable connection and water repellent barrier. SI 741 is made for concrete, limestone, brick or gas concrete. Especially for fresh concrete is Si 741 the best possible solution. The impregnation resists air pollution, doesn´t create a film or hinder the water vapour permeability. Treated surfaces are perfectly water repellent.