I've found WATER is as good a penetrant as anything if used right.
Soaking for a long time sometimes works, but heating the seized part
then quenching with water generally shatters the crystaline structure
of the rust enough to allow the fastener to be easily removed.
This is interesting-- I just noticed it was 2007, so I was pretty sure
I'd find it someplace on the web. The first reference to it I
found was here-
Essentially your post- but with this addendum;
"Note from original article author:
1) These are loads required to free the test piece after
8 hours of immersion in penetrating oil. This is
probably not representative of a quick squirt just
before a wrench is applied.
2) The original article states ATF was used in the DIY
mix. It was actually PSF. I corrected the table to
Hmmm-- I've used ATF[straight] before-- never PSF, though.
Then I found this- allegedly by the author of the article, Lloyd
"Allow me to appologize one more time. The test material was intended
to be automatic transmission fluid. In the auto parts department, I
grabbed a bottle of power steering fluid by mistake. If you read the
article, the power steering fluid shown was used. The table you quoted
has not been corrected."
And here is someone who actually read the article-
"He used steel dowel pins in a steel block, rusted for 12 hours in
salt water, soaked in the oils for 12 hours, then measured the force
needed to push the pins."
"I set up a study as he did although I used larger numbers of pins,
and added two groups of bolts and nuts. I let the parts rust for 6
months and tested the oils. I used acetone-ATF since that is what he
was wrongfully reported to have used. "
"There were no statistically significant differences between Kroil, PB
Blaster, Liquid Wrench, Wal Mart, or the acetone-atf mix. They did
loosen the nuts and the pins, they were better than nothing but all
performed the same. "
He also noted that acetone and ATF don't mix.
I have stuff to do & still haven't found the article. If someone
does- could they post a link.
I wish magazines would sell individual articles like some newspapers
now do- I'd be happy to pay a few bucks for a single article- but
don't feel like chasing all over looking for it.
On 8/6/2010 6:27 AM, email@example.com wrote:
I'd have to call BS on that test. There's no way that wd40, which is
basically kerosene, is gonna work 'nearly' as good as PB. PB is a fine
product that actually works. I do believe the atf/acetone thing however.
remove the "not" from my address to email
Salty... Here is the King of rust busters. I used this when in the appliance
repair work. Worked on a rusted ball bearing on a steel shaft. Could not
budge with a 10 ton press. A few drops on it and a light tapping to let the
fluid flow into joint and boil out the rust. Then removed bearing with
finger pressure. I was getting it from a appliance parts place. Now retired
for 27 years I found it at WalMart. Customline Rust Buster in a long spout
bottle. Company is PG ASSCO.NewYork. See if you can Google for it. WW
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