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Rave About Your Rack Please do not post retail SPAM.

Topic Date User

Date of manufacture of new climbing gear 12-May-2017 At 3:13:00 PM BBSR

Message

On 11/05/2017 patto wrote:
>On 10/05/2017 Paul wrote:
>>I would be interested to see results of tests done to see the breaking
>>strain of equipment which is unused and stored appropriately at the end
>>of the rated life span.
>
>As far as I am aware there is negligible effect of time on the soft goods
>used in climbing. As most of us are aware plastics/polymers are largely
>chemically stable and do not degrade readily. Stored appropriately and
>nothing will change in 8 years.
>
>If I paid full retail I'd be annoyed. If I got them discounted due to
>age then climb on!
>
>
My understanding is that dynema ages considerably faster than nylon. I believe the Rockcentrics available now are dynema. Not sure about old ones.

Have a read of the below expert or article.
http://www.alpenverein.de/chameleon/public/1710c3f7-77d8-c1dd-d63b-f619124ee2c1/Aging-of-Slings_26368.pdf

"The 67 Dyneema slings we tested also showed an unequivocal correlation between residual strength
and age. For example, slings that had been used for less than three years still held almost 20 kN on
average while the 3 to 5 year old Dyneema slings exhibited only 16 kN residual strength on average. "