Page 1 of 1

Penetrating Oils Compared

Posted: Sat Aug 07, 2010 6:17 am
by John_Heard
FYI - Might be handy...

Penetrating Oils Compared

Machinist's Workshop magazine actually tested penetrates for break out torque on rusted nuts. Significant results! 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 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 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.

Re: Penetrating Oils Compared

Posted: Sat Aug 07, 2010 8:43 am
by mcdn81olds
Wow who would've thought about acetone, we use it to get black marks & scuffs/small scratches off of white vinyl products. Thanks for the info I'm gonna have to change the u bolts & shackles on my work trailer & will try it then.

Re: Penetrating Oils Compared

Posted: Mon Aug 09, 2010 6:45 pm
by bracketracer
Acetone evaporates really fast so how does it do when mixed???

I also here that the d.e.p. is going to get that stuff off the shelf soon so stock up while you can.......

Re: Penetrating Oils Compared

Posted: Sat Aug 14, 2010 10:31 am
by 505r10
John_Heard wrote:FYI - Might be handy...

Penetrating Oils Compared

Machinist's Workshop magazine actually tested penetrates for break out torque on rusted nuts. Significant results! 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 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 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.
Probably not very scientific. In the shop for 36 years I've found in my not so scientific study that a mixture of oxygen and acetylene works better than all of those if applied correctly. As far as the penetrants go Aero-Kroil is seriously hard to beat. We tried it years ago and it's called "Magic Oil" in my shop. I tried every name brand and not so name brand penetrating oil out there and it works very good. I've never tried the atf/acetone mix even though back when I first opened my shop I used an atf/kerosene mix which worked pretty good but is also pretty stinky.

Roger
582r10
soon