The invention relates to a cylinder-piston system comprising a cylinder, wherein at least an inner section of the inner surface of the cylinder is formed from a first polymer material (C), a piston (1), comprising at least one sealing section on the outer surface (14) of the piston (1), which is formed from a second polymer material (P), wherein the cylinder and the piston (1) are positioned or positionable in such a way that during a sliding movement of the piston (1) with respect to the cylinder the inner section of the cylinder and the sealing section of the piston (1) slide on each other. One of said polymer materials, particularly the first polymer material (C), comprises at least a polar polymer material, particularly is selected from a polar polymer material, and the other polymer material, particularly the second polymer material (P), comprises at least a nonpolar polymer material, particularly is selected from a nonpolar polymer material.
