does the thicker the tpu waterproof and breathable membrane, the higher the waterproof level?

a customer asked, does the thicker the tpu waterproof and breathable membrane have a higher waterproof rating? the editor of fulian tells you that the thickness of the tpu waterproof and breathable membrane has little to do with the waterproof level. in order to let everyone understand this, let me analyze it now.

tpu waterproof and breathable membrane is a polymer waterproof material. it is made of a flexible and elastic microporous material - polytetrafluoroethylene (e-ptfe) through a special process. it is made of polytetrafluoroethylene microporous material. the es series waterproof and breathable membrane has high porosity, uniform pore size distribution, breathability, low friction coefficient, minimal adsorption, dustproof, oleophobic and hydrophobic properties, thermal stability, chemical media corrosion resistance, uv resistance and other functions.

tpu waterproof breathable membrane waterproof breathable membrane is made of microporous material, so its thickness has little to do with the waterproof level, but has a lot to do with the pore size. the larger the pore size, the lower the waterproof level, and the smaller the pore size, the waterproof the higher the level! therefore, while the waterproof and breathable membrane pursues breathability, the waterproof level will become lower. the level of waterproofing also refers to the water pressure resistance of the waterproof and breathable membrane. at present, the waterproof and breathable membrane's water pressure resistance of 500kpa has basically reached the top.