amsteel vs dyeema

[Elessar]

OMG, I never thought my simple question would yield so much information as to create more work. Now, I have to learn splicing and knots and stuff. Holy crap! Better get busy searching for threads of reference.

[saniun]

I wonder how light weight you could get with a hammock made of dyneema.

[SilvrSurfr]

This what I saw from a company that I order arborist equipment from. http://www.sherrilltree.com/Professi...hrowline-1-8mm

Geez, I wish you hadn't posted that link. I scrolled down the left side and saw red Zing-It 1.75 mm. I've never seen red - now I have to order some.

[SandmanBravo]

I have recently re-read this. Lot's of great info here regardless of your level of experience.

[Scouter_Ken]

my general rules of thumb for dyeema:

1. Use zingit/lashit for structural ridgeline if you are under 250lbs otherwise use dynaglide. But, beware that at some point in the future a structural ridgeline using zing-it will fail. usually on the 2nd night of a 5 day backpacking trip so use dynaglide or don't place your hammock over sharp rocks or sticks.
2. Use Zingit for tarp ridgelines as it is very lightweight and will never get near the 500lb breaking point when used properly.
3. Use Amsteel for anything that will require direct weight bearing capacity. Things like whoopie slings, continuous loops for end of hammock, etc.

[GadgetUK437]

a structural ridgeline using zing-it will fail. usually on the 2nd night of a 5 day backpacking trip so use dynaglide or don't place your hammock over sharp rocks

So, have you ever been put on the ground by a failing SRL?
Whenever I've had one fail, I've gone up, not down!


--
Gadget

[Wetfoot310]

Most commonly used cords here on HF:

Amsteel Blue: Made by Samson of Dyneema SK-75. 12 strand and spliceable. Available in multiple colors and diameters.

Dynaglide: Made by New England Ropes using Dyneema SK-75. Also 12 strand and spliceable. Only available in bright orange and green with slick/waxy coating. Only available in 2mm diameter. STS-12-75 (also made by NE Ropes) is a similar 2mm cord to Dynaglide but with a different coating more like Amsteel.

Lash-it/Zing-it: Made by Samson of Dyneema. I believe only 8 strand (might be wrong here). Spliceable. Only two diameters each (1.8 and 2.2mm). Lash-it is gray. Zing-it is yellow. Neither has a strength rating with a high enough safety rating for hammock hanging, but both are good for tarp lines and such.


Each of these cords are sold by multiple vendors.

Thanks for the great info man!

[Marius Titulescu]

Dyneema is a product name for cordage made with high molecular weight polyethylene fibers. So is Amsteel. It can be quite confusing! The coatings on the manufactured ropes may be slightly different, but they are essentially the same stuff.

I also know they're equivalent. Any hmw polyethilene based product should be fine.

[TominMN]

Dyneema is a product name for cordage made with high molecular weight polyethylene fibers. So is Amsteel. It can be quite confusing! The coatings on the manufactured ropes may be slightly different, but they are essentially the same stuff.

I also know they're equivalent. Any hmw polyethilene based product should be fine.

See post # 5 in this thread. Tha facts are clearly stated there.

[Cruiser51]

I also know they're equivalent. Any hmw polyethilene based product should be fine.

Not to be too picky, but the use of the word "Equivalent" is really questionable in this case. There are several (as I understand it) versions of UHMWP fiber that can be used to start with, plus the difference in coatings used, plus the difference in how those fibers are handled during production, plus how they woven.

So manufacture and starting fiber can contribute differences to the final products, so although a rope uses UHMWP it doesn't follow that ropes from different manufacturers will be "equivalent". They may be similar, but like most things in life ... there is usually a range of quality in any manufactured goods and rope IMO is no different.