Have you ever heard of “breathing paper”? Yes, it refers to the PTFE waterproof and breathable membrane, which can also be called “breathing paper”.
The technology of waterproof and breathable membranes was first introduced from European and American countries. However, the production processes of domestic products are diverse, and the quality of products from various manufacturers is uneven, failing to form a unified quality standard.
In fact, waterproof and breathable membranes mainly consist of three layers: PP spunbond non-woven fabric, PE polymer breathable membrane, and PP spunbond non-woven fabric.
The main function of spunbond non-woven fabrics is to enhance tensile force and hydrostatic pressure and protect the middle layer (breathable film). Real breathability mainly relies on the middle layer PE polymer breathable film.
The real PTFE waterproof and breathable membrane is not compounded with glue, so its temperature resistance is -40,100 degrees (EU CE standard, US ASTM standard).
It is not produced with polyethylene or TPO coating, so the air permeability should exceed 1500g/square/24 hours. If it is produced with polyethylene or TPO coating, it is basically not breathable.
Hydrostatic pressure testing shows that the hydrostatic pressure of thin waterproof and breathable membranes is at least 1.5 meters, and that of thick waterproof and breathable membranes is at least 2 meters.
Anti-aging is a must, because PP materials are easy to age under ultraviolet rays. Some fake waterproof and breathable membranes are produced with poor recycled materials. This waterproof and breathable membrane can easily age and degrade during the construction process. .
Suzhou New Material Technology Co., Ltd. is a PTFE waterproof breathable membrane manufacturer focusing on the R&D and production of PTFE composite materials. After years of painstaking research and R&D, it not only has strong R&D strength, complete testing methods and domestic advanced Experimental equipment has also attracted a large number of outstanding technical talents.
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