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In the Forum: Analog Playback
In the Thread: Fidelity Research FR-7
Post Subject: Suspension ageingPosted by Serge on: 8/3/2012
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Quote:
"Degradation   of   natural   rubber   can   be   caused   by   a   variety   of
environmental   factors,   such   as   elevated   temperature,   humidity,   impurities,
mechanical  load,  irradiation  and  chemicals.  In  the  presence  of  atmospheric
oxygen,  the  useful  lifetime  of  many  polymer  products  is  limited  by  oxidative
reactions.

 Radical  attack  of  the  polymer  chain  causes  chain  scission,  crosslink
formation  and  crosslink  breakage.  Changes  in  the  properties  of  polymers  with
ageing depend on the extent of such reactions."

It not only oxygen that kills a suspension. It's movement itself and the heat caused by it too. And there is another killer: time.

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