See my comments in post #5 on the following thread: http://www.rcuniverse.com/showthread...ghlight=kevlar

I use the yellow kevlar thread, and my comments apply to that form of kevlar. There is a comment further on in the thread concerning Aramid, which is a Dupont proprietary version of kevlar, which could also be used, but its physical characteristics are quite different from the yellow kevlar thread--at least in the form in which I've seen it. Aramid "cable" that I've seen is maybe braided, or some other process, whereas the kevlar thread is just parallel fibers with no particular structure to it. Aramid is a dark gray, sort of charcoal color, kevlar thread is yellow. The Aramid is coated, the kevlar thread is uncoated. I expect the Aramid would be a lot less prone to fraying compared to kevlar. Aramid has much larger diameter than the kevlar, not sure the Aramid would slip into the Sullivan threaded coupler the way the kevlar thread does. But probably the next larger size threaded coupler would fit it, although the next larger size is not hollow all the way through like the 2-56 is..