1, waterproof breathable membrane is actually a new type of polymer waterproof material. First of all, it can be very effective in isolating water, salt, or other liquids with corrosive, and can play a protective role. At the same time, waterproof breathable membrane surface tension is very small, the coefficient of friction is also very low, so it will not adhere to any material. 2, When the waterproof breathable membrane comes into contact with a large amount of water and oil, it does not penetrate through, and at the same time, it can quickly restore the breathability, thanks to its middle layer of PE polymer breathable membrane structure. Airtightness, watertightness and breathability are all excellent.