Dynasorb problem?

MnDLawn

MnDLawn

Location
NEPA
We just got 200' of 3/4" Dynasorb from Sherrill, we were removing some very big leaders from a Live Oak over a system of decks. Anyway, when we were done the cover of the rope had started to slide off both ends, about a total of 4 feet. The rope seems fine no thin spots, but I worry about the cover. For what we paid I don't want to put it out of service after one use.

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it sounds like you gave it a good run and it just milked if it's just the outer sheath and the core is ok I'd say it's still fine. Milking happens good luck
 
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Seems like a lot of milkng for a 3/4" rope. Were you using an arborist block or natural crotching?
Why not call Sherrill and ask them?
I usually stitch 1 end of my DB's.

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We were using a CMI block. I might give Sherrill a call, just wanted to know what everyone on here thought.
 
Ours slid a bunch, we use the 1/2" stuff, and had to milk it and burn it. Hasn't moved again. Definitely moves more than say stable braid, but the shock-absorbing qualities make it worth that little detractor.
 
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Ours slid a bunch, we use the 1/2" stuff, and had to milk it and burn it. Hasn't moved again. Definitely moves more than say stable braid, but the shock-absorbing qualities make it worth that little detractor.

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I can't help but think that removing the milked cover will reduce the amount of cover that is there to help absorb the shock? Nylon stretches more than polyester. It might be there deliberately to stretch with the core fibers. I don't own any Polydyne, nor have I used it. I have used Atlantic Braids "Husky" ropes, for many years, which have the same cover/core fibers. I have also used and own, Samson Ropes Amsteel 2 and Atlantic Braids Pro-Force, Polyester cover/Dyneema core. Haven't experienced milking on either product.
I would recommend calling either Sherrill or Yale Cordage. Keep all the cover you cut off, just in case.
 
Glad to chime in here;
D-lawn, my guess is that you somehow milked the cover during use, not a common handling of rigging line but perfecly okay. Did you use a prusik of some sort? Even a pulley and portawrap can act like a prusik if the job calls for multiple long drops of, say 80% rope length.
Elongation of the jacket is neither unusual nor harmful to your rope or it's strength. Even the length stays the same when you cut and melt the ends as I would recommend. Hope you're enjoying the unique characteristics of this "smart" rigging line.
Good luck
 
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