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Haven't seen this here so thought I would post this article regarding various penetrating oils and how well they work. Several surpises.
I have the fixings in my garage now so essentially the best is free for me.
Thanks to Matthew J. Michalik who posted this on the Yahoo group:
Machinist's Workshop Mag (tm)recently published some information on various penetrating oils that I found very interesting. Some of you might appreciate this. the magazine reports they tested penetrants 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 penetrants
with the control being the torque required to remove the nut from
a "scientifically rusted" environment.
Good news, if this is true. I started using PB Blaster on my old tractor with excellent results. But if Liquid Wrench is better I would gladly use that instead. PB Blaster stinks so bad. Get one drop of it on your pants or shirt sleeve and you will get thrown out of the house!
[FONT=Comic Sans MS][COLOR=black][COLOR=navy]Scott[/COLOR][/COLOR][/FONT]
I don't see what the VOC/flammability would have to do with marketability. I can buy pure acetone at any of the local big-box stores. I think the real reason is that the formula is out there, and there's no good way to patent it when everyone can buy the ingredients off the shelf for less than it could be profitably marketed for.
To a previous poster: the point of the "scientifically rusted bolts" is to remove a variable from the testing. Either the bolt/nut is going to come off, or something is going to break. ATF/acetone appears to be the formula that makes the first outcome the most probable. Sometimes nothing will work (when the rust is in effect a cold weld--the two threaded surfaces are no longer metallurgically distinguishable).
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