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  1. #11
    Senior Member DemostiX's Avatar
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    Quote Originally Posted by gmcttr View Post
    I suspect you're thinking of a material other than the Amsteel Blue we use. The smallest diameter has an average breaking strength of 1600 lb.
    Right: Amsteel is the registered brand name for Samson's UHDPE cordage. In almost two years of reading, Amsteel here is to UHDPE as Kleenex (tm) is to tissue.

    But, anyone who looked at their brand name Zing-It and Lash-It would know that the fiber and construction are the same. Check the bs, by weight, for further evidence.

    Some, besides me, have voiced caution and reluctance about use of another UHDPE cord, Dynaglide (tm), for hanging. (Listed bs of 1000lb.) I don't recall a reported failure. Had the OP excluded it from his concern / curiosity? Likely not.

    I implied important factors in keeping UHDPE cordage failure low: being conservative in selection of bs, terminating it in a way to retain maximum strength, and not snapping it with temporary high loads.

    Some failures in straps have been reported here, and others have done well to ask about whether strand separations in UHDPE cordage, are signs of pending failure. Still others retire what they suspend from on schedule, climbers for example.

    If outright failures went unreported, did they not occur? That's not a lesson from the sciences of surveillance and fragility estimation.
    Last edited by DemostiX; 12-31-2012 at 12:46.

  2. #12
    Knotty's Avatar
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    I know someone who recently had a failure in a Dynaglide suspension. It broke right at a hardware device. I suspect it was due to an overly tight bend radius.

    Off hand I don't remember any Amsteel 7/64" failures.

    Pretty sure there have been some strap failures. Just did a search...

    http://www.hammockforums.net/forum/s...ure#post743349
    http://www.hammockforums.net/forum/s...ure#post669116
    http://www.hammockforums.net/forum/s...496#post536496
    http://www.hammockforums.net/forum/s...=strap+failure
    http://www.hammockforums.net/forum/s...=strap+failure
    Last edited by Knotty; 12-31-2012 at 12:52.
    Knotty
    "Don't speak unless it improves the silence." -proverb
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  3. #13
    Moderator
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    Quote Originally Posted by DemostiX View Post
    Right: Amsteel is the registered brand name for Samson's UHDPE cordage. In almost two years of reading, Amsteel here is to UHDPE as Kleenex (tm) is to tissue.

    But, anyone who looked at their brand name Zing-It and Lash-It would know that the fiber and construction are the same. Check the bs, by weight, for further evidence....
    Dyneema would better fit as the "generic" for amsteel, zing-it, dynaglide, etc.

    I'm done now.

  4. #14
    Senior Member DemostiX's Avatar
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    Quote Originally Posted by gmcttr View Post
    Dyneema would better fit as the "generic" for amsteel, zing-it, dynaglide, etc.

    I'm done now.
    But, Dyneema is not generic. It is also a registered trademark. So is Spectra (tm), more likely to be recognized by anglers in talking about their line.

    And, Spectra (tm) was also once known here at HF. Here's Brandon / Warbonnetguy, the maker of the same fine hammocks and related, discussing a point about UHDPE cord, referring to Spectra as though it were generic.

    Originally Posted by warbonnetguy
    that all sounds about right, here's what else i've noticed.
    ...
    <snip>

    even if spectra line were cranked tight between 2 trees.......
    ..
    Last edited by DemostiX; 12-31-2012 at 14:25. Reason: on obscurity.

  5. #15
    Member JakobW's Avatar
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    Someone on ENOs facebook had a slapstrap rip and send the biner into the back of his head.

  6. #16
    New Member auggiedog's Avatar
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    i have a friend who is a HF member and was on the trip with him when his tree strap broke in the middle of the night!! it was pretty loud and he was lucky to not get hurt but instead only landed on his pride. I'll see if i can't get him to post as to what he thinks the reason might have been.... P.s. it was a clean break of the strap itself....

  7. #17
    kbajg's Avatar
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    Quote Originally Posted by senecio-joe View Post
    Has anyone had either webbing or amsteel actually break?

    I don't mean slipping or poor setups but total failure of the material.
    I know both are very strong and amsteel is much stronger than it looks
    but with thousands of hangers using them I have not seen a post about
    either one just snapping apart.
    http://www.hammockforums.net/forum/s...ighlight=kbajg
    You mean something like this post here.
    Never did figure out exactly what happened to the strap. I used them alot on square 4 x 4 posts & believe that weakened it over time. There were lots of compressed shiny areas on the straps from use & or well maybe abuse?
    I believe its been mentioned before but worth repeating never hang higher than your willing to fall.

  8. #18
    Senior Member otter's Avatar
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    Good question

  9. #19
    GrizzlyAdams's Avatar
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    I snapped a 7/64" Amsteel line last week. I snapped a 2000 lb test Vectran line a few years ago at a knot, I was playing with the single line suspension idea.

    Geometry and dynamic forces are a potent cocktail.

    Someone will say "pictures or it didn't happen" and I will reply "Stay tuned for the next exciting episode of 'Ask Professor Hammock'".
    Grizz
    (alias ProfessorHammock on youtube)

  10. #20
    Acer's Avatar
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    I, and a couple of friends have used amsteel on our 4 x 4 winches for years, frayed all to heck in places, and we have had a breakage or 2 putting alot of stress on it, thru pulleys and the winches. On my hammocks, haven;t had the 7/64 break yet even tho there's a couple of frayed spots of which I just use a lighter and melt the fuzzed spot over with and good to go. Ever try and break just a thread of amsteel with your hands? tough stuff, but it will break eventually. Every thing has a breaking point in time and usage. Can't wait for Professor Hammocks next video on this subject to see what he puts amsteel thru. I am sure all of us will be intrigued a bunch.

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