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Lifespan of STORED dyneema
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Feb 9, 2013
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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
720 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
2,408 points
Feb 9, 2013
i would use them without question....but that's just me Snoopy
Joined Oct 26, 2011
89 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
2,268 points
Feb 9, 2013
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Dyneema isn't milk. Ray Pinpillage
From West Egg
Joined Jul 23, 2010
155 points


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