Originally Posted by Bit_Reaper
While on the subject of ropes and running rigs. Is polypropylene rope suitable for this type of use or does it need to be something more durable?
There are a small number of lines used for running rigging
that use polypropylene, but they are specialty lines. PP has the advantage of being lighter than water
, so it floats, and it doesn't absorb water, so lines tend to stay light after immersion. It may be used as a cover with Spectra as a core
material to give it low stretch, but PP but itself is actually pretty low stretch. It's key advantage is low weight.
You want to use polyester or "Dacron". It's relatively cheap
(although more expensive than PP) and it is low stretch, but it has far higher abrasion resistance and sunlight resistance. PP falls apart in the sun after a short period of exposure. Polyester shows almost no degradation.
You would generally use double-braided polyester, or "yacht braid" but you may also want to try some single braids, which are very flexible, slightly cheaper, and would work well on control lines.