Maybe I didn't type that clearly enough.
There are 2 different part #s in the description on the mountainfitter website.
I am wondering which material he is actually selling.
Here is quoted text:
" Cuben Fiber CTF3 CT5K.08 1.50oz Sq Yard
CT5K.18 Cuben Fiber is the most common cuben fiber material used for Reinforcing Patches on Tarps and Tents since its super strong and highly abrasion resistant.. This material weighs 1.50oz per square yard and has a break strength of 190lbs/inch. Cuben Fiber is a translucent material. Color is Standard Gray. "