On Mon, 6 Mar 2017 10:49:37 -0800 (PST), "
wrote:

On Monday, March 6, 2017 at 11:11:52 AM UTC-5, Gunner Asch wrote:



I should mention I dont use Dyneema on any of the sail boats either. I
use Spectra, which is about 1/4 the price and does the job well
enough. Though to be fair...I might buy some 5/16" and replace the
stainless steel cables that lift and lower my centerboards on my
trailer sailers, simply because it wont wear out the spools on the
winches.

r

Gunner

Spectra and Dyneema are almost the same. Spectra is made by 3M and Dyneema by a Dutch compang. But they are both UHMW polyethylene made by different processes.

Dan

True. But one is stronger than the other. Spectra has been around a
long time. I have a pair of Kelty backpacks that are made from
Spectra.
http://www.weasel.com/gear_kelty_spectra.html

I see that Dyneema is starting to be used as backpack materials as
well.
https://www.hyperlitemountaingear.co...backpacks.html

Ive several sets of sails made out of Spectra on some of my boats.
Pricey as hell. But they last a hell of a lot longer than Mylar ones.

https://en.wikipedia.org/wiki/Sailcloth

The new Dyneema sail cloth has better elongation/creep resistance,
probably do to weave and thread composition. Its gaining ground on
Spectra in leaps and bounds. More than I can afford..but the rich
guys love it.

I ran across some of this line not long ago and was interested in it

https://www.ropeinc.com/plasma-rope.html

I think we are going to see a lot more of it in use before long.

Gunner



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