PURPOSE: To easily assemble a pasting stick by forming a drive element formed as a shell, a piston and an operating element as an integral component of the form of an injection molding.

CONSTITUTION: A rim of a shell 1 is fixed to an arc-like driving/operating element 2, and the element 2 desirably has a lateral serration 4. A free end of the element 2 is coupled to a guide and sealing ring 6 of a piston 3, and the ring 6 has a fixing element 3A on its upper end face. This entire structure is formed as an integral injection molding. To fill paste substance, the sealing-off ring 6 is engaged within the shell 1 and the element 2 is intruded into the shell 1 until the ring 6 is sealed off. Then, the substance is filled in an open end of the shell 1, and finally the open end is closed by a cap 7.