In a dynamic test, we gradually build up hydrostatic pressure via an air compressor. At first, the material lays flat and then raises and raises. Essentially, it forms the shape of a balloon. What we’re checking for is water penetration in terms of droplets. It’s not about saturating the fabric, but as soon as three droplets get through the fabric, the test is over.
Three droplets are the norm because of the EN standard.
In the end, we can derive the water column of a fabric. Though sometimes a fabric explodes under the pressure of the test! We make sure these materials are not used in our garments. It also shows how much water and pressure are pushing a fabric.
Because the fabrics we test are for motorcyclists, we have a higher demand for water column. That’s because these garments are more susceptible to the elements while riding due to riding position, speed, etc.
The static test is based on pressure and time. We can mimic a motorcyclist riding in the rain, for instance, for a couple of hours through a rain shower - which can be light, heavy, long, and a scope of tests. But in order to make full use of this test, we also gather the feedback from our global riders, to make sure we – to determine if the fabric withstands a shower over a period of time. We make this endurance based.
In terms of waterproofing, we also test taped seams, too. We investigate their breaking point, leakage, strength. We carry out same both the dynamic and static procedures as with materials. Leave no leaf unturned, right?!