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Tire Dry Rot


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  #1  
Old 09-11-2011, 02:41:29 PM
Dwayne Oxford Dwayne Oxford is offline
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Default Tire Dry Rot

Anyone know or ever been posts on which brand tires resist dry rot best?
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Old 09-11-2011, 02:54:07 PM
oldproff oldproff is offline
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Default Re: Tire dry rot

The sun does most of the damage to tires. If a vehicle sits where sun light can get to the tires cover them with canvas or other heavy material. this will slow sun light deterioration of the rubber. The sun affects all tires. Bill K
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Old 09-11-2011, 03:13:27 PM
Dwayne Oxford Dwayne Oxford is offline
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Default Re: Tire dry rot

I know but I've tractor tires way old with no dry rot & truck tires not near as old that are shot. Need to know if/which brands for auto use use more resistant rubber or better additive to compound.
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Old 09-11-2011, 03:58:55 PM
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Billy J Shafer Billy J Shafer is offline
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Default Re: Tire dry rot

I think the sun and weather has more to do with dry rot than the tires. I have had the same brand on a truck and some rotted faster than the other tires.
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Old 09-11-2011, 04:02:58 PM
Marc P Marc P is offline
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Default Re: Tire dry rot

The rubber and other componants in tires are much different in modern tires than the old tires. They don't build them like they used to. If I understand or remember it correctly, the rubber in the old tires was just that real rubber, in modern tires it is less rubber and more other componants added for different reasons and these other materials can't take the UV rays of the sun as well.

If there is a tire that can last alot longer I don't know of it, best thing I can add is keep them wiped often with tire protectant and as Bill says keep them covered if not used for extended periods of time.
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Old 09-11-2011, 04:20:07 PM
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OTTO-Sawyer OTTO-Sawyer is offline
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Default Re: Tire dry rot

And keep it jacked up off the ground if setting for long periods to avoid flat spots.

Setting outside in contact with bare ground rots them out faster too, even if under cover and out of the sunlight.
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Old 09-11-2011, 08:03:19 PM
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Craig A Craig A is offline
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Default Re: Tire dry rot

The WORST thing you can do for a tire is let it sit.

Rubber contains an oil/oils that are redistributed every time it flexes.
That's why tires seen on abandoned or never used tractors or cars dry out, turn gray and crack up.
If you want them to stay supple.......using them is the best medicine.
Here's part of a piece I found at http://en.allexperts.com/q/Rubber-24...onent-tire.htm

Quote:
As to the amount of oil in tyres. Yes, there is a fair amount. It's hard to give you a good number on that because recipes vary from application to application. Also, some tyres have more steel reinforcement than others, so in a 56 kg truck tyre, you might have 30 kg of steel and 26 kg of rubber compound. Of that 26 kg roughly half will be pure polymer and roughly half wil be other stuff like oil, carbon black, and other additives.

Typically, the oil content of oil-extended synthetic rubber is 25-33 percent, so for 13 kg of pure polymer you'll get between 4 and 6 kg of oil. I guess that means roughly 10 percent of the tyre weight might be oil.
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Old 09-11-2011, 09:23:31 PM
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OTTO-Sawyer OTTO-Sawyer is offline
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Default Re: Tire dry rot

I guess another very important question to ask would be....

Are you looking for long lasting tractor tires, or are you looking for car or truck tires that could blow out at high speeds even if they look good.

I've seen a lot of old tractors, farm wagons, and plows with badly weather checked tires that were aired up just enough to get them off the ground, and used that way for years.

I also had a pair of car tires in storage for many years that looked like new, No weather checking of any kind on them, and stored indoors up off of the floor. I ran them for two weeks and had a front blow out at 65mph that totally shredded the tire. Other one still looked good, but after one blowing I took the other one back off. Not worth the gamble, or the fender damage.
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Old 09-11-2011, 11:05:27 PM
Happy Old Iron Happy Old Iron is offline
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Default Re: Tire Dry Rot

Hello Dwayne,
I'm pretty sure there is no better rubber than Michelin. Had my front truck tires replaced after almost 180.000 miles and no signs off aging, ready to rerubber and start a second life. The truck didn't spend a single night inside.
Michelin are the only ones that are rerubbered 2 times with full warranty over here. However, they're not the cheapest.
Good luck,
Marc.
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Old 09-12-2011, 01:20:35 AM
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Craig A Craig A is offline
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Default Re: Tire Dry Rot

You COULD break the bank and buy Dunlops.......
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Old 09-12-2011, 05:21:00 AM
J.B. Castagnos J.B. Castagnos is offline
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Default Re: Tire Dry Rot

We were told not to store tires near electrical equipment, the ozone produced destroys rubber.
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