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Old 07-31-08, 08:22 AM   #1
bluenote157
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what is the shelf life of unused boxed tubes?

I'm planning on buying a bunch and storing them in my basement where it is somewhat cool??
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Old 07-31-08, 11:01 AM   #2
jsmithepa
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Years and years.
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Old 07-31-08, 11:10 AM   #3
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If they're in a box and out of UV and stuff they are relatively indefinitely good. "Relative" is a relative term, but I have tubes from 20+ years ago and they're still fine.

cdr
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Old 07-31-08, 11:13 AM   #4
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Keep them away from ozone. Bad sources of ozone include electric motors (furnaces included) and photocopiers/laser printers.

Ozone will depolymerize the rubber and cause it to disintegrate.
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Old 07-31-08, 11:17 AM   #5
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Man, how many tubes are you buying? Just preparing for that next hurricane and/or Cold War, eh?
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Old 07-31-08, 11:24 AM   #6
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I've got a carton of 700X19-26 Presta tubes, most date from 1975 to 1983 or thereabouts. They work fine, boxes fall apart... dried out glue... but the tubes look and feel like new.

Of course, I keep them in the house. I've an attic bedroom that's become a sort of bicycle workshop. It's dry, climate controlled, and well away from ozone producing motors. (Fans, washing machines, compressors. All of these will eventually ruin rubber .) Plus, lugging bikes up & down the dark, narrow stairs builds character.
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Old 07-31-08, 11:29 AM   #7
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just got a box of 36 tubes for under 10 from ebay.

got about 10 wheels for them..others will be stored
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Old 07-31-08, 01:47 PM   #8
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Quote:
Originally Posted by FLYcrash View Post
Keep them away from ozone. Bad sources of ozone include electric motors (furnaces included) and photocopiers/laser printers.

Ozone will depolymerize the rubber and cause it to disintegrate.
Other sources for ozone are gasoline and gasoline motor exhaust. Unprotected innertubes fall apart in less than one year in my garage. The same tubes seem to last forever inside my house.

Al
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