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Rust penetrants.

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  • Louis Rugani
    Thanks, Robert! We had discussed this earlier, and it s well worth repeating. From: Robert Kirk Sent: Tuesday, November 13, 2012 9:33 AM To: Lou Subject: Rust
    Message 1 of 1 , Nov 17, 2012
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      Thanks, Robert! We had discussed this earlier, and it's well worth repeating.

      From: Robert Kirk
      Sent: Tuesday, November 13, 2012 9:33 AM
      To: Lou
      Subject: Rust penetrants

      Machinist's Workshop magazine circa 2007, tested penetrants for break out torque on rusted nuts. 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 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. Our local machinist group mixed up a batch and we 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.

      Regards,
      Robert Kirk
      www.kirks-auto.com
       
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