DonInReno Report post Posted October 3, 2018 At the local industrial fabric store I spotted a new case of thread labeled “Kevlar $24/lb”, so it peaked my interest enough to grab a spool. Well, looking at it closer at home it’s obviously Dyneema, which I knew nothing about. Turns out it’s the same as Spectra and is the fiber used for winch cable replacement ropes. Super tough. Also super slick - knot strength is a problem and much more back tacking is required to secure a stitch. Some claim a lot of UV resistance, but destructive testing of climbing gear at Black Diamond shows it looses strength about as fast as Nylon. Then I’m imagining using it in some application a larger thread is normally used....and an article comes up saying it’s extra strength doesn’t do a lot of good because the Dyneema cuts through Nylon fabric before the thread breaks so it’s best use is when sewing Dyneema fabric or webbing. Well crap. Lol It melts at 300 degrees F so it’s nothing special in that regard. It’s also hard on scissors - this is what many cut-resistant gloves are made from - one drawback to being very abrasion resistant! Breaking strength seems to be somewhat mysterious - a few sources claimed breaking strength is low because it’s down rated to reflect knot strenth. Others claimed it’s twice as strong as nylon. Well my Dyneema Tex-150 breaks at 50 lbs. and on the same scale a good quality 138 bonded nylon breaks at 40 lbs - not as big a difference as expected. It’s still cool - maybe someday it will have a good use. Quote Share this post Link to post Share on other sites
ScoobyNewbie Report post Posted October 3, 2018 We can but try... Quote Share this post Link to post Share on other sites
