E-TPU Midsole

Ningbo GMF New Material Technology Co., Ltd. uses the principle of gas phase differential to produce E-TPU granules which contain a large number of micro-pore structures with bubble diameters ranging from 30µm  to 300µm.The granules that like popcorn can expand 5-8 times compared with original volume because of a lot of gas wrapped inside the microcells. Compared with the traditional foam material, the unique foam principle endows the granules with low density, strong resilience and excellent flexibility. By using the Steam molding process, about 2000 pieces E-TPU granules are processed into the midsole in the meanwhile that the outer layer of the particle is slightly melted and the inner pores are not affected. The shaped E-TPU midsole can be compressed to half of the size under pressure. When the pressure is gone, they can quickly bounce back to the original shape, greatly reducing the shock force on the soles of the feet.E-TPU material has the following three core advantages:

1.Research & development and mass manufacturer of E-TPU material.

2.Yellowing resistance up to level 4 and strong hydrolysis resistance.

3.Material molding pressure is low (as low as 0.1-0.3MPa) and adjustable.