Big Discount Fabric Water Repellent - Bonded TPU waterproof 3 Layer good Stretch Knit Softshell fabric – Yun Ai Detail:
Membranes are thin films made from polymers. There are basically two types of membranes – microporous membranes (they’re hydrophobic) and hydrophilic membranes.
The most widely used polymers for microporous fabrics are expanded PTFE (ePTFE) and polyurethanes (PU). Microporous films have about 1.2-1.4 billion tiny holes per square centimeter. These pores are much smaller than the smallest raindrops and they usually range between 0.1 and 10μm (1mm=1000μm). At the same time, they’re larger than water vapor molecules so that they can pass through the pores of the membrane.
So the memrbane have two Kernel argument.Waterproofness and breathability.
Waterproofness 3000mm-20000mm
Breathable 500gsm/24hours-10000gsm/hours
This two data will show us if the membrane quality is good or basic. TPU now is the widely use membrane,except this also have TPE,PU,PTFE etc.
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Fast and very good quotations, informed advisers to help you choose the correct merchandise that suits all your preferences, a short creation time, responsible excellent command and different companies for paying and shipping affairs for Big Discount Fabric Water Repellent - Bonded TPU waterproof 3 Layer good Stretch Knit Softshell fabric – Yun Ai , The product will supply to all over the world, such as: Finland, Ottawa, Auckland, Our company always provides good quality and reasonable price for our customers. In our efforts, we already have many shops in Guangzhou and our products have won praise from customers worldwide. Our mission has always been simple: To delight our customers with best quality hair products and deliver on time. Welcome new and old customers to contact us for the future long term business relationships.
By Lorraine from Swedish - 2018.11.22 12:28
The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.
By Cornelia from Rotterdam - 2018.12.10 19:03