I'm just catching up. Please consider that I am using the Oratex 600 lightweight fabric on my Belite Ultracub, and as such it should be compared to 1.7 ounce Ceconite. An aircraft covered with Oratex 6000 is dang near bulletproof as shown in the videos Lars has posted of attempts to rip through the fabric with a hammer. I put some sample Oratex 600 and Oratex 6000 on a couple 1ft x 1ft frames to learn how to apply the material, then later did my own tests for destruction. To this day I have not been able to punch through the 6000 fabric, but one good hard punch with my fist went through the 600. Try that with the Dacron used for MX ultralights, I suspect you'll get the same results.
I fully intend to cover my plane with Oratex again, I'm thoroughly sold (and this time I will not be painting the fabric to save weight).
Hi Tony, I would really like to send you some samples so you can see it for yourself and "play with it". The Material is so very different that it is hard to believe without having it in your hand, that is no question. I also be glad to talk. Feel free to call me at 907 229 6792 anytime. I thought you had been at Jim's wreck and looked at it. Let us show you the Oratex. Best Regards from Alaska, Lars