Interesting to see different opinions on the subject.
I was just speculating to get an answer from someone that has experimented on it.maybe on the material thickness used and sewing it.
Ive use tyvek suits for painting and i dont think that the right thickness.
but the ones used for enveloves and roofing insulation are very tough as hell but maybe the weigh is not right.
that is the problem with people who not familiar with the technical aspects of the thread.
tyvek makes disposable materials and also the sturdy reliable weatherproof materials.
there are lot of applications of the tyvek material as there are lot of applications of the polyester based clothes, like teijin or dacron.
i repair my kites myself. unfortunately the teijin cloth is so weak, every time my kite hits the water surface with the force it makes the canopy rip in figure H!
if it would be tyvek there will be probably just 30 to 50cm cut in the sail cloth. easily repairable by gluing.
kite industry is so ignorant, inert and stagnant they can not think beyond hot ballooning and paragliding!
they are just enjoying the status quo for supply and demand, giving us the crap we are gladly willing to declare the perfect, just because we've bought it...