Re: IML: Tire Expiration Dates

[Christopher H <imperial67@xxxxxxxxxxxxx>]

Real simple answer:

Virgin rubber compound is still petroleum-based synthetic, just like there
is both virgin motor oil and recycled motor oil. Nothing in the term says
it's natural rubber.

In fact, if you click on some of the links on that same Ohio DNR website,
you'll find information such tidbits on rubber as:

"Automotive tires are made from synthetic rubber derived from petroleum, the
development of which was inspired by interest in improving on the
performance of natural rubber."

Hope this settles your mind!
-- 
Chris in LA
67 Crown
78 NYB Salon




On 5/31/05 8:00 PM, David Whitney (david.whitney@xxxxxxxxxxxx) wrote:

> Okay, now I'm really confused.  I read elsewhere that the artificial stuff
> did not meet the specifications for radials and that the industry returned
> to using natural rubber.  This from the Ohio Dept. of Natural Resources:
> 
> "The tire industry consumes 65 percent of all rubber compounds produced
> worldwide, but it is not a candidate for extensive re-use of recycled tire
> rubber with today's technology. Because of speed, safety and other
> performance requirements of tires, they need to be made mostly using virgin
> rubber compound.
> 
> But mixing five to 15 percent recycled rubber into the virgin rubber
> provides a few advantages in the production process, including better
> mixing properties and an increase in plant efficiency due to reduced curing
> times. Some tire manufacturers routinely use crumb rubber as a filler,
> especially to make treads on passenger car tires, farm equipment tires and
> solid rubber tires."
> 
> Somebody help me, please!
> 
> Thanks,
> 
> David



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