How much irrelevant information is in this thread is crazy, so let me add some points for thought:
- Dyneema is a Dutch invention and produced by DSM in the Netherlands
. Some companies have a license
to produce it as well. Only these official sources of the fiber should be considered, because it is as much about things like quality control, consistency etc. than it is about the molecular structure of the fiber (plenty inferior knock-offs). Stop talking about any products of which it is not clear what is is or that are knock offs.
- DSM states (like in linked documents above) that for applications with sustained exposure to UV, protective measures are a must. Stop talking about unprotected Dyneema as lifelines, you can’t do that.
Like many incl. me have stated earlier in the thread: Dyneema lifelines are great, they cross all the boxes, never chafe, last 10 years or more and outperform stainless steel
by multiples. All recorded lifeline incidents were with stainless steel
, never with Dyneema.
What Dyneema to use? Original Samson
Amsteel Blue. You can get it in many colors, I still prefer the original blue but have other colors as well. It is about the protective coating, which is not just the outside of the rope
but around each individual fiber. Every ship uses this for mooring
lines, only adding chafing protection where the spliced loops go around rusty bollards and they last forever. My 3/8” running backstays
are 16 years old and still okay.