TPE elastomer filaments are made of low melting point TPE composite materials that have been specially polymerized and modified. The melting point of 39D is around 175 ℃. Compared to TPU elastomer consumables, this filament has better fluidity and lower water absorption rate. During the printing process, there is less wire drawing, resulting in lower sensitivity to temperature and faster printing speed compared to TPU with the same hardness. The printed product can withstand a heat resistance temperature of over 100 ℃ under stress free conditions.