Originally Posted by Zanshin
Nick - I thought one only needs to lash one side, since the lines are under constant tension and there would be no chafe. The Dynex Dux is a bit of an overkill for lifelines, since the creep on normal Dyneema SK75 lines would be negligible with the tension levels on lifelines. The skipper
of the Diadem told me that the Dynex Dux is very very stiff and they only used it for the standing rigging and not the lifelines.
Well, we use the lifelines like holding them in rough seas when going forward, to dry the laundry
, tie fenders to etc. and that all cause tension and chafing. With lashings on both sides you only have to replace the lashing, which we did once in these 7 years. There was evidence of chafing on both sides.
We use 3mm spectra for the lashings.
The top lifeline is the one that gets most handling and our stanchions have a nice and smooth hole through solid material for it so there's no chafing at all. The lower lifeline just goes through a hole through the hollow part but I basically see no chafing or very minimal after 7 years. Not worth changing something for.
We have some spots where the rigging touches the lifelines. There, I wrapped some 3mm polyester double braid around the lifelines for protection.
The stiffness of Dynex Dux is a pro for lifelines IMO. And the price
difference isn't too big anyway. I think Samsom Amsteel blue is a good alternative too because we are impressed with it for our running backstays
after 5 years in the tropical sun.
We don't like wire because it's tough on the hands and puts stains in the laundry
. Also, I would never trust that PVC coated type because stainless should be in full contact with the air.