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Posted by Phil Bernard [174.106.238.183] on Friday, December 14, 2012 at 20:08:25 :
There have been many posts about getting out rusted bolts such as warm wax. A friend of mine sent this article to me about an acetone and automatic transmission mixture used to break down rust. The test uses torque as the ranking value. This article appeared in "Machinist Workshop Magazine." Has anyone heard of this or tried it?
For all you backyard mechanics.
INTERESTING INFORMATI0N
Machinist's Workshop recently published some information on various
penetrating oils. The magazine reports they tested penetrates for break out
torque on rusted nuts.
Below listed, a subjective test was made of all the popular penetrates, with
the control being the torque required to remove the nut from a
"scientifically rusted" environment.
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 20% of the
price.
ATF-Acetone mix is best, but you can also use ATF and lacquer thinner in a
50-50 mix. (ATF = Automatic Transmission Fluid)****
Machinists Workshop
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