[AT] Tractor tire liquid

[Stephen Offiler]

Here is a link to a chemical compatibility chart.  Note butyl rubber is the
6th column to the right of the chemical name.  Scroll down to methanol.
Note it gets a "1" with butyl which is the best rating.

http://mykin.com/rubber-chemical-resistance-chart-4



SO

On Mon, Oct 20, 2014 at 9:15 AM, Stephen Offiler <soffiler at gmail.com> wrote:

> Respectfully disagree.  This is WAY too broad and general a statement.
> There *are* certain types of rubber that get along just fine with
> methanol.  Otherwise you'd never be able to run it thru a flexible hose or
> seal it with an O-ring.
>
> SO
>
> On Mon, Oct 20, 2014 at 8:51 AM, Steve W. <swilliams268 at frontier.com>
> wrote:
>
>> Cecil R Bearden wrote:
>> > I need a little input from you guys.
>> >
>> > a couple weeks ago I mounted 2 new 18.4x38 tires on my 2-105 White.
>> > Tires were mounted tubeless with some type of fluid in the tire.  I
>> > think it may have been some type of glycol based anti-freeze .  One rim
>> > needed some welding on a rusted place as the rim had been outside since
>> > last summer after removing the tire.  We mounted the tires & tubes with
>> > no problems noted.  Filled both tires with methanol/water solution.  I
>> > used windshield washer fluid when methanol was so much more expensive.
>> > Tires hold about 100 gallons, so we added 1/2 of a barrel of methanol.
>> > filled the remaining with air.  while sowing wheat about 2 weeks later,
>> > one tire started leaking water at the valve.  I checked the valve and
>> > found it to be loose from the tube.  2 days later I pumped the fluid out
>> > and broke down the tire and found valve separated from the tube and a
>> > 1inch long cut about 6 inches from the valve.  I assumed the cut was
>> > from a pinch with the tire spoon.  Or, maybe the tube was caught between
>> > the tire & rim.  We inflated and deflated the tube to straighten it
>> > out.   We also used tire mounting lube to mount the tire on the rim.  I
>> > repaired the tube last Wednesday.  Yesterday I noticed fluid running out
>> > of the valve hole on the other tire and a lot of the mounting lube had
>> > coagulated at the base of the tire.  I jacked the tire up and put the
>> > valve on top as I did not have time to work on it.
>> >
>> > My question is 2 part.   Would the use of mounting lube cause a loose
>> > tire on the rim and it possibly slip and pull the valve out??   Would
>> > the use of Methanol be deteriorating the rubber in the tube. and causing
>> > the problem.  These tires are Speedway 18.4 x 38 8 ply rating.  Tubes
>> > were 2 different brands.   Gateway the first one, and Doberman the
>> > second.  I was only pulling a 16 ft spring tooth with a 12 ft harrow
>> > behind it on 30 acres and later a 16x8 JD drill before the first tire
>> > started leaking...  The load was not anything out of the ordinary.
>> >
>> > Cecil in OKla
>>
>>
>> Methanol eats rubber REAL quick. I would bet the methanol is the only
>> reason for the problem.
>>
>>
>> --
>> Steve W.
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>
>