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post #17 of Old 01-15-2013
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Re: Life Lines? West marine and crimp?

Originally Posted by MarkSF View Post
I was wondering if you could explain the nature of this menace that wire creates. It's just that the same wire has been installed on my boat for 30 years, and has been keeping people safe for all that time.
Well if you have the vinyl coated it could be very dangerous (especially if it is 30 years old), as you often cannot see the corrosion till they are too weak to break a fall. Also the vinyl holds moisture against the SS in an oxygen poor environment a double whammy. This is why you cannot use vinyl coated in most offshore racing classes anymore. The advantage of Dyneema is that size for size it is twice the strength as steel. So even if you cut through half of the thickness it is still as strong. another advantage is that it is softer to to the touch than either vinyl or uncoated wire so is better if you race and have people hanging over the rail and finally it is DIY friendly so not only can you install it yourself you can repair it yourself with supplies you can easily carry on on board. So if a line does get cut in the middle of no where you can fix it on the spot. It is also much lighter weight, though for most people this is not a big deal.

It is not all positives though, it is recommended to replace about every 8 years due to UV but again it will only be a few hundred to replace rope as fittings can be reused, and if you just use lashings (replaced annually) there are no fittings.
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