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  1. #1
    jokerr's Avatar
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    Amsteel or Webbing failing

    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.

  2. #2
    Brute1100's Avatar
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    Interesting question... Tagged for responses...
    Live, Laugh, Love, if that doesn't work. Load, Aim and Fire, repeat as necessary...

    Buy, Try, Learn, Repeat

  3. #3
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    I believe I've seen a few posts about webbing failures due to not paying attention to wear/fraying, hardware used wrong or insufficient stitching of an end loop.

    I have a vague recollection of a hanger being awoken by knife applied to suspension by fellow campers.

  4. #4
    dejoha's Avatar
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    I've had a set of DIY straps fail due to weak thread. I was using polyester thread but it was a spool for clothing. Once I realized my mistake, I switched to my gutterman thread and havn't had a problem.

    I've been using some amsteel now that is a few years old and it is still going strong. I recommend always inspecting your gear prior to any hang to check for damage and fraying. Replace at any sign of wear that makes you uncomfortable. Err with caution. Never hang any higher than you are willing to fall.

  5. #5
    Senior Member DemostiX's Avatar
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    Don't trust Guetermann

    because it is Guetermann. It is just another thread company making a range of threads, some appropriate, and others not --(including a full range of embroidery threads.) Still, with enough stitches of thread heavy enough not to be abraded and frayed or decomposed to the core by UV, strap-loops and channels can be sewn securely even with the wrong thread.

    That said, if you bought Guetermann from a an outdoor specialist, it is likely the right thread in the Guetermann lineup.

    On Amsteel breakage. Yes, it has been reported here, in structural ridge-lines (SRL), How? Well, start with 450lb bs material. then degrade it by tying knots in it instead of splicing, and the bs may be just 300lb. Now put a transient or "dynamic" load on it, and a cord explicitly designed to have no stretch and no energy absorbing capacity will snap.

    Who to blame? Not the designer and fabricator, who expects the SRL to be no tighter than making it easy to make a horizontal Z in, between thumb and forefinger, which may be just 7% of the effective breaking strength.
    Last edited by DemostiX; 12-31-2012 at 02:23.

  6. #6
    MAD777's Avatar
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    I've read a few tales of straps breaking. I've replaced a set of straps that looked a bit frayed.

    I look at hammock suspensions like brakes on a car. It's just something that needs to be replaced periodically.
    Mike
    "Life is a Project!"

  7. #7
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    Quote Originally Posted by DemostiX View Post
    ...On Amsteel breakage. Yes, it has been reported here, in structural ridge-lines (SRL), How? Well, start with 450lb bs material...
    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.

  8. #8
    Senior Member Risk's Avatar
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    I can't remember anyone having failure of hammock strap or line material, even when we were using yellow polypro and tying knots in it. I think the rated strength of that braid was < 500 pounds.

    Knots have failed, splices have failed, thread has failed. Hammock material has failed.

    I have had yellow polypro break with other uses - but only when it was left outdoors in the sun for long periods - greater than a year. UV degrades many of the materials.
    Rick (Risk)
    I cook. I sew. I walk. I lead. I hang. I write. I play. I refuse to be ashamed.
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    http://www.postholer.com/risk

  9. #9
    dejoha's Avatar
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    Demostix has a good point about thread. I didn't mean to plug one brand. What I should have said was to use a stronger thread. The gutterman brand that is sold by many DIY guys comes in different weights for different projects.

  10. #10
    Senior Member ibgary's Avatar
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    I started a 7/64 amsteel test last night. It loops over a 90* steel edge and supports the hammock. Hammock swing = movement. If it can take the abrasion on a 90* angle then I won't worry about my small diameter nickel plated rings. They r ~ 3/16".

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