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interesting article on penetrating oils.

Discussion in 'Shooting Related Threads' started by Bill Sergent, Nov 28, 2012.

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  1. Bill Sergent

    Bill Sergent Member

    Jan 26, 2010
    San Diego
    This information ( reprint) may be of interest for those stuck choke tubes.

    Bill Sergent

    Subject: Fwd: Penetrating Oils


    Subject: Penetrating Oils

    Penetrating Oils

    Machinist's Workshop recently published some information on various
    penetrating oils. The magazine reports they tested penetrates for break out
    torque on rusted nuts.

    Below listed, a subjective test was made of all the popular penetrates, with
    the control being the torque required to remove the nut from a
    "scientifically rusted" environment.

    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

    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.

    Our local machinist group mixed up a batch and we all now use it with
    equally good results.

    Note also that Liquid Wrench is almost as good as Kroil for 20% of the

    ATF-Acetone mix is best, but you can also use ATF and lacquer thinner in a
    50-50 mix. (ATF=Automatic Transmission Fluid)
  2. timberfaller

    timberfaller Well-Known Member

    Feb 24, 2007
    Eastern Washington
    So, Ed's Red should work pretty good on rusted bolts??
  3. Star4Ever

    Star4Ever Member

    Jan 16, 2012
    Recently I had a choke tube that would not budge in my single barrel trap gun. I had not removed it in about one month of heavy shooting. I did have some Kano Kroil on hand as I have always used this in my rifle barrels in a 50-50% mix with Butch's Bore Shine (a fairly common mix in the modern benchrest world).

    Well I poured about 2 inches of Kano Kroil into an old plastic frozen orange juice can. Submerged the tip of the shotgun barrel for about one hour. That stuck choke tube came out very easily where as before, with the help of a friend at the range, we could not get it to budge.

    The Kroil bath did NOT harm my barrel blueing.

    I am not a big fan of Acetone one bit. It is not good for your skin, your lungs, eyes and is just about instant disaster for most gun finishes. It is extremely flammable and can cause combustion on old rags. So be very cautious around Acetone or any acetone mixture.
  4. X Trap 2

    X Trap 2 TS Member

    Jan 29, 1998
    Good information. I think Break Free is also good. Ray
  5. Unknown1

    Unknown1 Well-Known Member

    Nov 5, 2009
    <blockquote><I>"I am not a big fan of Acetone one bit. It is not good for your skin, your lungs, eyes and is just about instant disaster for most gun finishes. It is extremely flammable and can cause combustion on old rags. So be very cautious around Acetone or any acetone mixture."</I></blockquote> Your own body manufacturers acteone as part of the normal metabolic processes.
    <i>Health Effects of Acetone</I>...it's not without effect but, health-wise, it's not as hazardous as you make it sound.

  6. scoutmaster

    scoutmaster Member

    Jul 31, 2011
    I used the " ATF & Acetone" 50/50 mix and it will definately will remove the blue from the end of your barrel if allowed to soak for an extended period of time.

    And the cost of a barrel reblue is??? I'll stick with Kroil Oil.
  7. shoobedoo

    shoobedoo Member

    Sep 13, 2012
    Acetone won't cause 'old rags' to spontaneously combust either, it evaporates very rapidly, and a rag soaked it in and left in open air will completely dry in a pretty short time. Acetone is flammable, but so is Hoppes #9 and a host of other solvents, so don't smoke or light matches around them. Acetone can mar certain wood finishes, so some care should be taken, but it has no harmful effect from normal cleaning on bluing in my experience, except to remove any oil present. The amount of Acetone in a standard mix of Ed's Red is about 25% and is a very effective carbon fouling remover, and as long as it's used in a reasonably well ventilated area I've never had any 'fume' issues with it. For anybody who has ever had problems with stubborn plastic wad fouling, pure Acetone is very effective at removing it in my experience, but again, use some common sense, a well ventilated area, and don't use a cigarette lighter to look down the bore. Kroil is good for removing stuck bolts and the like, but it's ridiculously expensive, and not a particularly effective gun cleaner compared to many products that are about a tenth the cost.
  8. pumpernck

    pumpernck Member

    Jun 24, 2011
    Florida and Utah
    +1 for kroil. It also makes a great bore cleaner for most guns without worrying about contact with skin.
  9. Catpower

    Catpower Molon Labe

    Jan 29, 1998
    In the Cabana
    CRC came out with a new penetrating oil caller Knock "er Loose, I've used a bunch of them and it was about the best

    Another one that is good is Wagner Rust Buster, it comes in a plastic bottle and has never let me down, the only thing is it maybe hard to find as the only place I have seen it is in HVAC wholesale houses
  10. pdq

    pdq Member

    Aug 24, 2006

  11. Bvr Tail

    Bvr Tail Well-Known Member

    Jan 29, 1998
    I used to mix about 1 pint of Kerosene, with ATF for squirting on rusted parts.

    It worked best on parts I had slightly heated, but not hot.(Exhaust bolts/nuts, etc.)
  12. OldRemFan

    OldRemFan Member

    Sep 4, 2009
    What are the ingredients of Kroil oil? Does anyone have the break down on that?

  13. noknock1

    noknock1 Active Member

    Jan 29, 1998
    Stranger in a Strange Land
    Mash the link. Wouldn't it be nice to know the "propitiatory ingredients!"
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