http://www.makeyourgear.com/fabrics/xenon-sil-.9/
I don’t think I’ve seen anyone post anything about this new fabric. Has anyone else noticed it/ordered some? I’m pretty intrigued by it. The Silpoly from ripstopbytheroll has some fans out there, but I am hesitant to trust such a lightweight polyester. The .7oz nylon from rockywoods is pretty awesome too (I made a tarp with it), but I don’t know if I would trust it with a larger tarp.
This fabric from makeyourgear.com is slightly heavier and only uses silicon as it’s coating. (PU coatings can weaken the fabric) I would expect it to be plenty strong for most applications.