A composition for coating a mould or formwork and de-moulding cement and concrete materials cast therein, comprising: a plurality of particles comprising (a) at least one non-Ordinary Portland Cement (non-OPC) binder operative to form a coating when mixed with at least one inert filler and water to form a uniform mixture, said non-OPC binder being present in the amount of at least 1 percent; (b) at least one inert filler operative with said at least one non-OPC binder to form a coating when mixed with water and to harden upon the mould or formwork, said at least one inert filler being present in the amount of 5 to 80 percent and comprising calcium carbonate, silica, barium sulfate, talc, mica or mixtures thereof; (c) optionally at least one accelerator agent operative to accelerate the setting of said at least one non-OPC binder, said optional at least one non-OPC binder accelerator agent being present in the amount of 0 to 5.0 percent; and (d) at least one Ordinary Portland Cement set retarder agent operative to retard the setting of OPC cement or concrete cast into the mould or formwork, said at least one OPC set retarder agent being present in the amount of 0.5 to 40.0 percent; the foregoing percentages being based on total dry weight of the coating composition. a plurality of particles comprising (a) at least one non-Ordinary Portland Cement (non-OPC) binder operative to form a coating when mixed with at least one inert filler and water to form a uniform mixture, said non-OPC binder being present in the amount of at least 1 percent; (b) at least one inert filler operative with said at least one non-OPC binder to form a coating when mixed with water and to harden upon the mould or formwork, said at least one inert filler being present in the amount of 5 to 80 percent and comprising calcium carbonate, silica, barium sulfate, talc, mica or mixtures thereof; (c) optionally at least one accelerator agent operative to accelerate the setting of said at least one non-OPC binder, said optional at least one non-OPC binder accelerator agent being present in the amount of 0 to 5.0 percent; and (d) at least one Ordinary Portland Cement set retarder agent operative to retard the setting of OPC cement or concrete cast into the mould or formwork, said at least one OPC set retarder agent being present in the amount of 0.5 to 40.0 percent; the foregoing percentages being based on total dry weight of the coating composition. (a) at least one non-Ordinary Portland Cement (non-OPC) binder operative to form a coating when mixed with at least one inert filler and water to form a uniform mixture, said non-OPC binder being present in the amount of at least 1 percent; (b) at least one inert filler operative with said at least one non-OPC binder to form a coating when mixed with water and to harden upon the mould or formwork, said at least one inert filler being present in the amount of 5 to 80 percent and comprising calcium carbonate, silica, barium sulfate, talc, mica or mixtures thereof; (c) optionally at least one accelerator agent operative to accelerate the setting of said at least one non-OPC binder, said optional at least one non-OPC binder accelerator agent being present in the amount of 0 to 5.0 percent; and (d) at least one Ordinary Portland Cement set retarder agent operative to retard the setting of OPC cement or concrete cast into the mould or formwork, said at least one OPC set retarder agent being present in the amount of 0.5 to 40.0 percent;