Abstract: A mounting system and method for tautly mounting a flexible material sign includes a plurality of mounting springs affixed to an associated sign structure. Each of the plurality of mounting springs includes a base portion, a grasping portion and a spring portion. The base portion is adapted to be secured to an associated sign structure, such as a structure to which the flexible material sign is to be mounted, a frame or similar structure surrounding the flexible material sign, etc. The grasping portion includes a finger adapted to be received within an aperture of the flexible material sign. The spring portion is disposed between the base portion and the grasping portion for applying a tension to the flexible material sign.