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Lifespan of STORED dyneema
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Feb 9, 2013
How is the lifespan of dyneema slings when stored indoors (not used). I have some that i have not used in a long time (maybe 5 years old used 3 or 4 times) and am wondering if they degrade enough in storage that i should consider them suspect.

i have read how they degrade somethign close to 50% strength in 3 years. is that even if they are not in use?
Adam Paashaus
From Greensboro, North Carolina
Joined May 20, 2007
578 points
Feb 9, 2013
i dont think so- dyneema mostly degrades with loading and UV exposure.

i'd call Mammut US and ask- my guess is they'll say 5 years total life span.
John Wilder
From Las Vegas, NV
Joined Feb 1, 2004
1,495 points
Feb 9, 2013
i would use them without question....but that's just me Snoopy
Joined Oct 26, 2011
10 points
Feb 9, 2013
AFAIK that 50% in 3 years figure came from the testing Joe Healy has done on his heavily used Mammut slings. I have tested a single Mammut sling, VERY LIGHTLY used for about 6 years and it was IIRC about 80% of rated strength. So I feel, as others do, that it's not time but rather use that wears these skinny slings out. Gunkiemike
Joined Jul 29, 2009
1,725 points
Feb 9, 2013
Dyneema isn't milk. Ray Pinpillage
From West Egg
Joined Jul 23, 2010
0 points


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