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Old 02-03-2013, 10:25 AM   #21
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My bad, it's Yield, not "shield". Just saw a can in the garage.

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Old 02-03-2013, 10:33 AM   #22
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Originally Posted by jevanb View Post
Mabey banned in Texas but we buy it in 55 gal drums and if it runs out you can get it at Lowe's/ home depot. I run a acft maint facility, and kroll is the best
That's interesting to hear. I will check it out next time I am at Lowes. Is it called MEK or something else?

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Old 02-03-2013, 11:16 AM   #23
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Old 02-03-2013, 12:15 PM   #24
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Originally Posted by Nigels View Post
Thought this was interesting

Penetrating Oils

Machinist's Workshop MagT recently published some information on various penetrating oils that I found very interesting. Some of you might appreciate this. The magazine reports they tested penetrates for break out torque on rusted nuts.
They are below, as forwarded by an ex-student and professional machinist. They arranged a subjective test of all the popular penetrates with the control being the torque required to remove the nut from a "scientifically rusted" environment.

*Penetrating oils .......... Average torque load to loosen*

No Oil used .................. 516 pounds
WD-40 ..................... ... 238 pounds
PB Blaster .................... 214 pounds
Liquid Wrench ..............127 pounds
Kano Kroil .................... 106 pounds
ATF*-Acetone mix............53 pounds

The ATF-Acetone mix is a "home brew" mix of 50 - 50 automatic transmission fluid and acetone. Note this "home brew" released bolts better than any commercial product in this one particular test.

Our local machinist group mixed up a batch and we all now use it with equally good results.
Note also that "Liquid Wrench" is almost as good as "Kroil" for about 20% of the price.

Steve from Godwin-Singer says that ATF-Acetone mix is best, but you can also use ATF and lacquer thinner in a 50-50 mix. *ATF=Automatic Transmission Fluid
Interesting Nigel, Good stuff to know.
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Old 02-03-2013, 12:38 PM   #25
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Originally Posted by Itsthetwoofus View Post
Interesting Nigel, Good stuff to know.
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Old 02-05-2013, 12:43 PM   #26
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I just replaced the ball joints on my truck two weeks ago and used the 50/50 mix of trans fluid and acetone (saw this post on FTE). I had no issues removing the hub bolts after soaking overnight. I have no idea if they were just not frozen so can't say if the mix helped or not. Other than the hydraulic fluid smell, I’m happy.

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