I want to clarify that I sent the original message tongue-in-cheek; I was not actually recommending that polypropylene rope is suitable for
caving. I was just surprised that "caves" is mentioned on the packaging. I have enjoyed the comments. Do any of you know what would be
involved (and how much it would cost) to make real caving ropes that glow-in-the-dark? LowGun
On 6/3/2011 9:44 PM, Mixon Bill wrote:
I once had polypropylene prusik slings. They worked fine, although I used them only once in a real pit (~100 ft), just to show that I could.
About that time, Jumars came out, and I could afford the $18 to get a pair.
A major problem with polypropylene is its low melting point, 130 to 170 degrees C. You could easily get your brakebars hot enough to melt, or
at least seriously degrade, polypropylene. There may once have been a fatal accident at Gaping Gill (340 feet) in England for that reason. The
nylon used in caving ropes melts at 265C. -- Mixon
----------------------------------------
No dolphins were killed in the preparation of this e-mail.
---------------------------------------------------------------------
Visit our website: http://texascavers.com
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
