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914World.com _ 914World Garage _ Tires & Armor All

Posted by: davep Feb 6 2006, 08:37 AM

Found this to be an interesting comment:

Ozone is a highly reactive form of oxygen, which is why it can be dangerous to human health as well. Ozone is one of the primary causes of the degradation of rubber because it reacts with any unsaturated double bonds left in the rubber polymer. It can also react with regular covalent-type polymer bonds, but this is more of a minor reaction. Once the reaction has started, it basically goes down the polymer chain via free-radicals and 'unzips' the polymer molecule—effectively destroying it. Tire manufacturers minimize the effect of ozone degradation by adding antioxidants to their tire formulas and waxes that protect by blooming to the surface of the tire and forming a coating, effectively sealing the surface molecules of the rubber from the air and ozone. This is why the tire manufacturers discourage the use of products like Armor All on the sidewalls of the tires because the Armor All can solubilize the waxes and then remove them over time.

Posted by: Mark Henry Feb 6 2006, 08:49 AM

So...what do we use?

I use the No-touch stuff, does that hurt the rubber? Got to clean it with something.

I did use armour all on my old bug tires many moons ago and they all cracked to shit after about 10 years.

Posted by: Tobra Feb 6 2006, 08:58 AM

I have been using the spray on foam tire stuff for 6 or 7 years with pretty good results. I had heard the armor all was not so good in college chem class from good old Dr. Dave

Posted by: bd1308 Feb 6 2006, 09:00 AM

I wanna know how to restore rubber after its already gone

I have like ten 914 seals that are just FUBAR'd.

b

Posted by: ClayPerrine Feb 6 2006, 09:06 AM

Don't forget to armor all the treads before an autocross.....

Posted by: Crazyhippy Feb 6 2006, 09:07 AM

Makes sense on weatherstriping etc... but i've never had a set of tires get too old???

They just get bald

BJH

Posted by: meares Feb 6 2006, 09:10 AM

silcone maybe?.....

Posted by: Joe Ricard Feb 6 2006, 09:15 AM

QUOTE (Crazyhippy @ Feb 6 2006, 07:07 AM)
Makes sense on weatherstriping etc... but i've never had a set of tires get too old???

They just get bald

BJH

just keep them clean and cover them with this in between runs.

rubber not supposed to last long enough to crack.

Attached image(s)

Posted by: aircooledboy Feb 6 2006, 09:17 AM

QUOTE
silcone maybe?.....

Exactly!

Silicone is the culprit. Will have the same effect on interior trim as well. Just make sure the product you are using is not silicone based and you should be fine.

Posted by: ClayPerrine Feb 6 2006, 09:17 AM

QUOTE (Joe Ricard @ Feb 6 2006, 09:15 AM)

QUOTE (Crazyhippy @ Feb 6 2006, 07:07 AM)
Makes sense on weatherstriping etc... but i've never had a set of tires get too old???

They just get bald

BJH

just keep them clean and cover them with this in between runs.

rubber not supposed to last long enough to crack.

Cool!!!!

Ductape tires...... rocking nana.gif

If you put the sticky side out, it will handle better.

But then it will accellerate slower.

Posted by: nynone4 Feb 6 2006, 09:18 AM

I use Wesley's Bleche-White to clen the sidewalls of my tires. It leaves them nice and black without that greasy shiny Armor All look.

A word off caution though if you use this stuff: DON'T get it on your anodized wheels (like Fuchs). It will leave a permanent mark every where it comes into contact. Ask me how I found that out....