Best penetrating oil

Discussion in 'Product Reviews' started by Tschroeder250, Aug 2, 2013.

  1. botts

    botts Active Member

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    Woah! This can be danger zone! Torque specs are given for dry fasteners, not lubed.

    When engineering, a formula is used to convert torque from dry to wet. Most anti-seize brings torque specs at least 20% lower, down to potentially under half of what the dry spec would be.

    Torque is used as a proxy for clamping force. Torque is easier to measure than the better proxy (bolt stretch) or best method (directly measuring clamping force).

    Some anti-seize brands list what the torque reduction should be. See here: Bostik Brochure. Torque reduction values are listed starting on page 3.

    Interestingly Permatex does not recommend reducing torque values for their Anti-Seize PN: 81343.

    I use this in gunsmithing all the time. I tend to use aerosol PB Blaster, aerosol Liquid Wrench or whatever I have around for car use though just for ease of application.
     
  2. toadeyes

    toadeyes Active Member

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    This is pretty much old school, but yes it do works great.
     
  3. McGyver

    McGyver Member

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    I am a PB Blaster fan myself, but used to use Liquid Wrench as a kid years ago
     
  4. cvbrewer

    cvbrewer Member

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    There are a couple of penetrating oil experiments on youtube by Project farm. I can't say for sure that they are completely unbiased, but they are interesting to watch. They do test the ATF and Acetone combo.
     
  5. 1955moose

    1955moose Full Access Members

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    We had a thread like this one about 2 months back. If memory serves, liquid wrench was one of the best for the money. It actually fared better than my fav, Kano aero kroil. I think the liquid wrench came in #2 or 3. Don't remember who was #1? I believe the consensus was Liquid wrench and heating the threads. I'd heat first, cool a bit, then spray. Fire hazard other way around.

    Sent from my N9131 using Tapatalk
     
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  6. jeff kushner

    jeff kushner Full Access Members

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    I collect & restore vintage bikes and one of our members did a controllable test on all the majors like WD & PB, Kroil etc and found the very best to be a 50/50 mix of ATF and Acetone:

    http://kawatriple.com/TomsTips/penetrating_oil.htm

    For most things, I use Kroil.

    jeff
     

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