Rich Giacobone came up with this from somewhere....pretty good information....
For all you mechanics and others…………..
Subject: Fwd: Best Penetrating Oils
Penetrating Oils, Machinist's Workshop Mag. recently published some information on various penetrating oils that is 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
I have always used Kroil for the Aluminum Aircraft AN fittings. It has been the only thing that can save an aluminum AN pipe thread from destruction. Always use nickel anti-sieze on all AN threads (except pipe threads) and torque them while assembling and you will seldom ever have to throw one of those enormously expensive things away again.
Topic: Useful info (Read 716 times)