Thread: Do inner tubes age?
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Old 09-05-11 | 10:03 AM
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Originally Posted by fietsbob
Tube is not exposed to sunlight, being inside the tire..

they are Butyl rubber, petroleum based, .. latex in ultra light tubes may age faster.
UV exposure probably doesn't have a large effect on aging of rubber. It does some damage but not all that much. Think car tires that are exposed to sunlight all the time. What dsbrantjr is talking about is the production of ozone via the exposure of other chemicals - unburned hydrocarbons and oxides of nitrogen -to UV light.

The formulations used for the butyl rubber will also make for a highly variable rate of reaction with ozone.
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