Freeing frozen fasteners - BMW Luxury Touring Community
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Old Mar 22nd, 2010, 11:49 am
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Freeing frozen fasteners

For all of you that are mechanically inclined and dealing with frozen fasteners:

Penetrating Oils Compared

Machinist's Workshop magazine actually tested penetrants for break
out torque on rusted nuts. Significant results! 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.
Penetrating oil .......... Average load
None ..................... 516 pounds
WD-40 .................... 238 pounds
PB Blaster ............... 214 pounds
Liquid Wrench ............ 127 pounds
Kano Kroil ............... 106 pounds
ATF-Acetone mix............ 53 pounds

The Automatic Transmission fluid (ATF)-Acetone mix was a "home brew" mix of 50 - 50 automatic
transmission fluid and acetone.

Note the "home brew" was better than any commercial product in this
one particular test. A local machinist group mixed up a batch and all now
use it with equally good results. Note also that "Liquid Wrench" is about as

good as "Kroil" for about 20% of the price.
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Old Mar 22nd, 2010, 12:39 pm
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Re: Freeing frozen fasteners

Great post Curtis! This was just cut 'n pasted into my reference library.
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Old Mar 22nd, 2010, 2:04 pm
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Re: Freeing frozen fasteners

I'm heading right back to the shop and mix some up, just as soon as I finish this apple..............good post Curtis and thanx for the heads up..............Jim......
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Old Mar 22nd, 2010, 4:19 pm
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Re: Freeing frozen fasteners

Great information...thanks for passing it on Curtis!

Ron
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Old Mar 22nd, 2010, 5:13 pm
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Re: Freeing frozen fasteners

Just back from the shop...............ATF/acetone; mixed in an oiler can, is absolutely awesome...............Don't want to get it on ya' I'd bet though..................Thanx again Curtis............
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Old Mar 22nd, 2010, 5:32 pm
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Re: Freeing frozen fasteners

Great info for sure.

I been a Liquid Wrench kinda guy for awhile now. I guess I now know why, it works!

I do not have acetone but will source some and also mix a small pump oil can to try

Is the a chemical thing between the acetone and ATF, and or rust?

I mean that is a very significant reduction in force, so seems to me it draws into threads, or eats rust, or both?

Any explanation given?
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Old Mar 22nd, 2010, 7:05 pm
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Re: Freeing frozen fasteners

Check the label on your wife's nail polish remover, some of them are mostly acetone.
That suggests that it may be acting as a solvent.
Probably don't want to put it back on her shelf after you mix in the ATF though.....

Jim H.
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Old Mar 22nd, 2010, 9:30 pm
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Re: Freeing frozen fasteners

Dang, that's cool - and dirt cheap!
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Old Mar 22nd, 2010, 10:10 pm
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Re: Freeing frozen fasteners

ATF and Acetone - sounds explosive! Will the Alcohol, Tobacco and Firearms crew get involved?

Good statistics, though - aside of the ATF/acetone mix, it looks like good ole Liquid Wrench stays right next to my tool set!
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Old Mar 23rd, 2010, 6:37 am
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Re: Freeing frozen fasteners

I usually have a can of Acetone around the shop, available at hardware stores on the shelf with paint thinners, paint removers, etc.
YES, the stuff is very volatile and the vapors are explosive. You can't keep it in an unsealed container like an oil can, it needs to be tightly sealed or the acetone will be soon gone.
I suspect the reason the acetone/ATF mix works so well (if indeed the data is correct) is that the acetone penetrates like nothing else and pulls the ATF along with it.
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Old Mar 23rd, 2010, 9:15 am
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Re: Freeing frozen fasteners

Quote:
Originally Posted by jrh2020
Check the label on your wife's nail polish remover, some of them are mostly acetone.

Jim H.
Or use your own...
Quote:
Originally Posted by jrh2020
That suggests that it may be acting as a solvent.

Jim H.
That's what WD40 is, a solvent.
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Old Mar 23rd, 2010, 1:42 pm
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Re: Freeing frozen fasteners

Quote:
Originally Posted by atrovarious
Or use your own...


That's what WD40 is, a solvent.

Or not.

WD40 is the 40th incarnation of a Water Dispersant. I have yet to find a suitable use for it, apart from using the can to prop a door open!

In the UK we have a product called Plusgas which is one of the best penetrants available. I am told that diesel makes a good soak too.
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Old Mar 23rd, 2010, 7:19 pm
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Re: Freeing frozen fasteners

Quote:
Originally Posted by Ajlelectronics
Or not.

WD40 is the 40th incarnation of a Water Dispersant. I have yet to find a suitable use for it, apart from using the can to prop a door open!

In the UK we have a product called Plusgas which is one of the best penetrants available. I am told that diesel makes a good soak too.
Here's the real answer . . .

and then you may ask What the hell is an Aliphatic Hydrocarbon
Well then, Click Here!
Attached Files
File Type: pdf MSDS wd494716385.pdf (82.9 KB, 111 views)
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Old Mar 23rd, 2010, 7:32 pm
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Re: Freeing frozen fasteners

I would really like to know where diesel and PlusGas come on this list
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Old Mar 23rd, 2010, 8:33 pm
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Re: Freeing frozen fasteners

Quote:
Originally Posted by c00k1e
I would really like to know where diesel and PlusGas come on this list
PlusGas is mostly kerosene. Another marketing triumph to squeeze the consumer.

3 COMPOSITION/INFORMATION ON INGREDIENTS
Name EC No. CAS-No. Content Classification
REGULAR KEROSENE 60-100%
OLEYL HYDROXYETHYL IMIDAZOLINE 0-1%
OLEOYL SARCOSINE 0-1%
Attached Files
File Type: pdf 0900766b8001e5f2.pdf (434.6 KB, 46 views)
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are absolutely passionate . . .
Ride till you can't!

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South Africa!
Spain, Tuscany, Provence & Andorra in 2012
Greece Fall 2013

In July, to The Dolomites of Italy, Alps of Switzerland & Austria and returning to Milan via the "Gold Coast" of the French Riveria.


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Old Mar 27th, 2010, 7:27 pm
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Re: Freeing frozen fasteners

Just tried this mixture on my grill. I have a ceramic grill similar to the Big Green Egg and the top vent adjustment runs with a threaded rod through a nut. I found mine rusted solid together last week. Many other owners with this problem have severely damaged their grills trying to get these two to break free from each other.

I had just read this forum post so I mixed the Acetone and ATF up and applied it liberally with a toothbrush to both sides of the nut. It soaked for about 10 minutes and came loose with firm twist.

Not very scientific as to it being the "best" solution, but it certainly worked in my case. I've ordered a back issue to read the full article just out of curiosity. Thanks for posting and thought you would like to hear from someone who tried it.

Thanks,
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Old Mar 28th, 2010, 12:28 am
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Re: Freeing frozen fasteners

As fast as acetone evaporates I would assume you would only mix just what you need each time to get the full effect?.
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