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  1. #1
    New Member PMSteve's Avatar
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    Amsteel vs. Dyneema

    As I've been reading and doing research on suspension systems, I've seen references to both Amsteel and Dyneema cordage.

    Are these products just brand names of the basic same product kind of like Ford and Chevy? Or, are they fundamentally different in construction and usage?

    I see that whoopie slings are made from Amsteel and that some manufacturers of hammocks (Warbonnet for one) uses Dyneema for their suspension. What's the difference? Is one better for a particular usage than the other?

    Inquiring minds need to know.
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  2. #2
    Senior Member wildcrafter's Avatar
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    amsteel is made with dyneema fibers.
    welcome to planet earth no one gets out alive

  3. #3
    turnerminator's Avatar
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    Dyneema and Spectra are both brand names for UHMWPE. The UHMWPE is Ultra High Molecular Weight Polyethylene. The individual fibres are very thin but incredibly long and straight and this provides UHMWPE with its strength. Lots of different ropemakers(eg. Samson) buy the fibres from DSM who license dyneema, and then spin them into lovely braid which we know as Amsteel Blue. Amsteel blue is made from a specific type of fibre called SK75. There are other grades of dyneema too, such as sk78 as used in Samsons AS78 hollow braid.

  4. #4
    Joey's Avatar
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    Quote Originally Posted by turnerminator View Post
    Dyneema and Spectra are both brand names for UHMWPE. The UHMWPE is Ultra High Molecular Weight Polyethylene. The individual fibres are very thin but incredibly long and straight and this provides UHMWPE with its strength. Lots of different ropemakers(eg. Samson) buy the fibres from DSM who license dyneema, and then spin them into lovely braid which we know as Amsteel Blue. Amsteel blue is made from a specific type of fibre called SK75. There are other grades of dyneema too, such as sk78 as used in Samsons AS78 hollow braid.
    This is better than the edumacation I get from watching Jeopardy and Walker Texas Ranger re-runs!

    Seriously, great in-depth explanation.

  5. #5
    New Member PMSteve's Avatar
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    Thanks to Turnerminator for the reply. You answered a couple of questions right off the bat.

    I knew someone here would have the answer! Thanks again!
    Steve

    You're invited to visit my Blog: www.guideforgeezers.blogspot.com

    "I Never knock on Death's Door. I Just ring the bell and run. He hates that"... Methusula

  6. #6
    Dutch's Avatar
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    Quote Originally Posted by turnerminator View Post
    Dyneema and Spectra are both brand names for UHMWPE. The UHMWPE is Ultra High Molecular Weight Polyethylene. The individual fibres are very thin but incredibly long and straight and this provides UHMWPE with its strength. Lots of different ropemakers(eg. Samson) buy the fibres from DSM who license dyneema, and then spin them into lovely braid which we know as Amsteel Blue. Amsteel blue is made from a specific type of fibre called SK75. There are other grades of dyneema too, such as sk78 as used in Samsons AS78 hollow braid.
    I am impressed
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  7. #7
    Member
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    Quote Originally Posted by Dutch View Post
    I am impressed
    Me too...!

    Ski

  8. #8
    Senior Member samjaynes's Avatar
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    Quote Originally Posted by turnerminator View Post
    Dyneema and Spectra are both brand names for UHMWPE. The UHMWPE is Ultra High Molecular Weight Polyethylene. The individual fibres are very thin but incredibly long and straight and this provides UHMWPE with its strength. Lots of different ropemakers(eg. Samson) buy the fibres from DSM who license dyneema, and then spin them into lovely braid which we know as Amsteel Blue. Amsteel blue is made from a specific type of fibre called SK75. There are other grades of dyneema too, such as sk78 as used in Samsons AS78 hollow braid.
    Wow - hopefully Samsons send you some free 7/64 for that sales knowledge. Opie - you have a new rep.

  9. #9
    Senior Member ibgary's Avatar
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    Question Impressive

    I spent a couple of hours on the Internet finding that out. Next time I'll just come here.
    Now I'm using 3/8 nylon webbing. It seems less prone to tangels, easier to find and cheaper. Any one tried that?

  10. #10
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    Hello all, i recently bought some dyneema from rei to make a set of whoopies and before i get started i had a question.

    It seems to me that this particular cordage does not have any room inside to bury an end, (Forgive me if this is a silly question, i've done a fair bit of diy sewing but never any project like this with cordage) almost like it is full of fibers. Could i have bought the wrong material or is this correct? It is not amsteel.

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