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Author Topic: Rusted bolts  (Read 5881 times)
Ian Robinson
Administrator

Posts: 2551


Life Member
« on: October 14, 2013, 10,06:18 AM »
Copied from another forum. Interesting result from the Acetone/ATF mixture. Molasses is good at freeing rusted parts if you have time as well


In fairness, WD-40 is not designed as a penetrator/rust release agent, it just gets used for 'everything'.


Machinist's Workshop Mag recently published some information on various penetrating oils that I found very interesting. Some of you might appreciate this. The magazine reports they tested penetrates for break out torque on rusted nuts.
- 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

*** ATF=Automatic Transmission Fluid

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.

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, (this actually works well). Power-steering fluid also works as well as ATF!
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Rodney
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Posts: 184
« Reply #1 on: October 14, 2013, 11,23:22 AM »
Fascinating Grin
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Dirtpilot72
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Posts: 613
« Reply #2 on: October 14, 2013, 11,35:35 AM »
Might give this a go. I use Inox by the truckload.
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Serge C
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« Reply #3 on: October 14, 2013, 08,28:16 PM »

Now ya tell me!

I could have saved some skin off my knuckles!
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Ken R
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« Reply #4 on: October 15, 2013, 10,24:55 AM »
Hooray - I was peed off every time I looked at the ATF in the shed that was probably never going to get used with all the sealed auto gearboxes in cars these days. Now I can use it to free up the next rusty thingy I find.

Some thoughts -

With acetone on it's own evaporating so quick, do you just mix a small amount and apply quickly, how long does the mix last.
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