Booo! The Important Factor Affecting Waterproof Jackets Is Actually It!
author: Lily
2024-12-20
It's common to encounter windy and rainy weather during outdoor activities, and a waterproof jacket is an essential piece of equipment to ward off the rain. Every outdoor enthusiast must have sturdy waterproof jackets to keep themselves dry. But how do we determine its waterproofness?
This mainly depends on one parameter: hydrostatic pressure.
Many people think that a jacket is waterproof if water doesn't leak through when poured onto it, but that's not the case. Besides natural water infiltration, external pressure can also force water to penetrate the fabric. The level of waterproofness indicates the ability of waterproof jackets to resist water penetration.
The waterproofness of a fabric is expressed in terms of the resistance encountered by water passing through it. Under standard atmospheric conditions, a continuously increasing water pressure is applied to one side of the specimen until three water penetration points appear on the other side. The pressure value at which the third water penetration point appears is recorded and used to evaluate the waterproof performance of the specimen.
The higher the hydrostatic pressure, the stronger the ability to resist water penetration, which means the better the waterproofness of the waterproof jacket.
Acturally Sherason factory can make highly waterproof and breathable more than 20,000 rating, we will continue developing and reach higher.
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