Waveform progressive tire mold element
Particular embodiments of the present invention include an undulating sipe mold member (10) and a corresponding sipe formed within a tire tread. In a particular embodiment, the present invention includes an undulating sipe mold member 10) for use in a mold, the mold member comprising: an upper mold member (12) extending downwardly from a top end to a bottom end; and, a first lower projection member (14) and a second lower projection member(16) each lower member extending downward from the initial extension, the sipe mold member (10) having a sweep axis along which the sipe mold member undulates in a desired path.