Originally Posted by mikereed100
I'm afraid you are right. From the Colligo website concerning replacing wire with Dux:
Dux is "Sized for equivalent stretch so you will get the same performance. With our sizing methods, you will get virtually no creep."
From the Colligo website:
I have used Dux on my boat and have seen considerable creep which seemed to settle down after some sailing time. Doesnít Dynex Dux creep too much for use on a boat?
Invariably, what we have seen here is that people will splice the line and then put it directly into use. As the line is loaded the upset braid in the splice will continue to stretch out and reset. This results in elongation of the line which can be mislabeled as Creep or even stretch. Once the line has been stretched to its peak load, the elongation will stop. This is why we pre-stretch all of our standing rigging systems, to reset the braid after splicing.
Dynex Dux will creep but the loads need to be substantial and constant. "We size the line for creep" based on the experimentally determined creep tables that we have and the constant loads the line will see, not the dynamic loads. Some of this data can be seen on our website. It is very easy to size the line such that you will see a minimum of creep. 9 mm dux with a constant load of 1200 lbs on it (substantially higher than the pretension on most sailboats) will creep about 0.1 inches (2.5 mm) per year.
And from the Colligo website:
Why do I need to use 7 mm Dynex Dux that breaks at over 15,000 lbs-f to replace 1⁄4 inch wire that breaks at 8,000 lbs? Isnít that overly strong?
Dynex Dux UHMWPE line is a different material than steel
and needs to be treated as such. It needs to be sized for stretch and creep. If this is done correctly it will perform the same or better than steel
systems with much less weight. In addition, the extra breaking strength offers a better factor of safety
. In most cases the line can chafe 1⁄2 way thru and still be stronger than the steel it replaces.
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