Kraig Biocraft Laboratories Inc (KBLB)

[GTman1]

With the elasticity of silk, whether it be DS or something else, I do not see it being used in bulletproof vests.

You have to stop the bullet before it passes through the body — not after.

I've never commented on this subject in the past because I've never had any training in ballistics protection (like probably most on this board). However, I've never agreed with the whole "spider silk can't be used for bullet proof vests because it's too flexible and would stop the bullet after it's inside you" argument.

Nobody here has any idea what the strength/flexibility combination means for indentation into the body.

Think of this - Say you had a swath of DS fabric that was 1 in. x 1 in. How far would it indent if you shot a bullet directly into the middle of it? If the edges of it were stabilized, probably less than an inch. Why couldn't a strand of less flexible material be weaved into it every inch or centimeter to stabilize the edge.

Also, we have no idea what the friction coefficient of the fiber is. Depending on the weave and fiber directions, you don't know how each thread is going to interact with each other. These aren't rubber squares. There will be friction between the fibers

Like I said, I don't have a ballistics background, but I have taken enough physics classes to know that there are plenty of variables that are being looked over on this board. I think its way too early to start saying spider silk can't be used for bullet proof vests.