[AT] Tractor tire liquid

[Cecil R Bearden]

The tubes are butyl rubber.  Butyl rubber is listed as compatible with 
methanol.  This is also a 25% methanol/water mix.     I bought the 
methanol from my oil supplier who sells this for tractor tire ballast 
anti-freeze all the time.

Cecil in OKla


On 10/20/2014 8:15 AM, Stephen Offiler 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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