[Cortina-list] Penetrating oils

Don & Terry Gwynne dgwynne3 at tx.rr.com
Tue Dec 18 19:39:22 UTC 2012


Forwarded from Rod Davis...

Machinist's Workshop magazine recently published  interesting information on various penetrating oils.  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.  Note also that "Liquid Wrench" is almost as good as "Kroil" for about 20% of the price.  
> 
> ATF-Acetone mix is best, but you can      also use ATF and lacquer thinner in a 50-50 mix.
> 
> Happy wrenching



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