Penetrating Oils

Penetrating Oils

Machinist's Workshop Mag recently published some information on various penetrating oils that I found very interesting. Some of you might appreciate this. The magazine reports they tested penetrates for break out torque on rusted nuts. They are below, as forwarded by an ex-student and professional machinist. 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

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 about 20% of the price.

Reply to
Garlicdude
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I've found that the effectiveness is greatly increased if you can preheat to slightly above the vaporizatron temp and then spray it on or dip the entire article.

Reply to
PrecisionmachinisT

Excellent find. Unfortunately, after I bought a case of each, Kroil, PB blaster. I didn't know they still made liquid wrench!! It also has much greater anti-rust properties than WD 40.

I'm surprised by some of the results, tho.

I didn't think WD 40 would have any effect at all. And I certainly wouldna thought it was so close to PB.

Shouldn't they have tested Coke and Pepsi??

Also, I wonder how a penetrating ranks as a lite SAE 5-10 lubricating oil?

Reply to
Existential Angst

WD has kerosene and Stodart Solution..so its not a lubricant in the slightest..it only has some veggy oil.

Kroil is pretty darned good, but the ATF/Acetone is probably the best.

Its supposed to cause bladder damage because of the acetone fumes..what litle there are.

Gunner

The methodology of the left has always been:

  1. Lie
  2. Repeat the lie as many times as possible
  3. Have as many people repeat the lie as often as possible
  4. Eventually, the uninformed believe the lie
  5. The lie will then be made into some form oflaw
  6. Then everyone must conform to the lie
Reply to
Gunner

One possibility is also penetrating liquid used for liquid penetrant testing.. It is VERY good at going through cracks etc.. I've used it for getting some stuck things apart. The bright red/purple colour is a minus though.. :)

The acetone+ATF is a nice idea!

Well, I clean my hands with acetone after painting with non-water soluble paint.. I wouldn't worry about some rare exposure to acetone. After all, there is some acetone naturally in human body, and larger amounts when in ketogenic diet..

Reply to
Kristian Ukkonen

Found this article on the web.

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I've recently found Castle Thrust is good penetrant. I needed to adjust the headlights on my truck, which had been aimed too high. Just got the truck, used. I tried several sprays, none loosened the adjuster. Castle Thrust did the job.

I guess different products for different jobs.

Christopher A. Young Learn more about Jesus

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One possibility is also penetrating liquid used for liquid penetrant testing.. It is VERY good at going through cracks etc.. I've used it for getting some stuck things apart. The bright red/purple colour is a minus though.. :)

The acetone+ATF is a nice idea!

Well, I clean my hands with acetone after painting with non-water soluble paint.. I wouldn't worry about some rare exposure to acetone. After all, there is some acetone naturally in human body, and larger amounts when in ketogenic diet..

Reply to
Stormin Mormon

I'd like a lube to coat threads on caps for refrigeration fittings. These will be warm, cold, wet, dry, and made of steel. They tend to rust on. I've tried differend sprays which all disappear rapidly. Recently been trying marine grease.

Christopher A. Young Learn more about Jesus

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Reply to
Stormin Mormon

Piva Soumi!

Gunner, half Finn

The methodology of the left has always been:

  1. Lie
  2. Repeat the lie as many times as possible
  3. Have as many people repeat the lie as often as possible
  4. Eventually, the uninformed believe the lie
  5. The lie will then be made into some form oflaw
  6. Then everyone must conform to the lie
Reply to
Gunner

Just remember to keep the ATF/Acetone tightly capped when not in use, or pretty soon it will just be ATF again.

Reply to
J. Clarke

I tried making the ATF-Acetone stuff last week and couldn't get it to dissolve into each other. Vigorous shaking produced a mixture which quickly separated back into 2 liquids, ATF on the bottom. Anyone have an idea what the problem is? Art

Reply to
Artemus

I have not tried mixing them but atf is mostly oil and acetone is a highly polar compound. It's like mixing oil and water.

For Gunner, all I use is Ed's Red. I have a batch for copper fouling that I added a little amine epoxy curing agent to but don't know how effective it might be as I seldom have a copper fouling problem in my pistols.

Lanolin was somewhat hard to find in the drug store but turns out that it is used as a nipple cream for nursing mothers and I think I found it in the baby section.

Another note is that acetone does not attack polyethylene. When I worked in the lab we used to use plastic squeeze bottles with acetone for rinsing and cleaning glassware. Hot oils will attack polyethylene as would kerosene and other hydrocarbons.

Reply to
Frank

Nope. In Eds Red..it mixes just fine

Gunner

The methodology of the left has always been:

  1. Lie
  2. Repeat the lie as many times as possible
  3. Have as many people repeat the lie as often as possible
  4. Eventually, the uninformed believe the lie
  5. The lie will then be made into some form oflaw
  6. Then everyone must conform to the lie
Reply to
Gunner

[ ... ]

Are there not two different types of ATF -- just like there are two different types of hydraulic brake fluid?

Which type of ATF is preferred for this mix?

Enjoy, DoN.

Reply to
DoN. Nichols

There are several and I don't know how compatible they are. I'd stick with Dexron III or IV.

Reply to
rbowman

Humm...very very good question. Last batch I made up, I dumped in a quart of Dexron II..the cheapest I could find.

Couldnt tell any difference between the prior batch..about 15 yrs ago.

Gunner

The methodology of the left has always been:

  1. Lie
  2. Repeat the lie as many times as possible
  3. Have as many people repeat the lie as often as possible
  4. Eventually, the uninformed believe the lie
  5. The lie will then be made into some form oflaw
  6. Then everyone must conform to the lie
Reply to
Gunner

I think it is partly the lanolin theat helps emulsify the mixture in Ed's Red - or possibly the Staddard Solvent.(or turps)

Reply to
clare

Dexron - not Mercon

Reply to
clare

A few years ago, I needed a penetrant. The only thing I had immediately available was straight lacquer thinner.

It worked far better than I expected!

BTW, lacquer thinner works wonders on most automotive spooge. It rip's off sludge and oil varnish almost instantly.

It's not good for you though; skin contact & inhalation need to be avoided at all costs. It's also very volatile & extremely flammable. in other words, dangerous stuff.

Erik

PS, For the BBQ, I have one of those chimney starter things. Instead of paper, I have a little stainless container in which goes a couple of ounces of charcoal lighter fluid. I light it, and carefully set the coal filled chimney over it. Works great![1] A while back, I was out of lighter fluid, and substituted lacquer thinner. It was fine at first, but after about 45 seconds, started producing this loathsome, horrible smelling, choking dense back smoke that immediately enveloped my neighbor's house, and blew in through their open windows. I immediately pulled off the chimney and covered the now boiling container to extinguish... but the damage was done. They said it took days to air out the reeking chemical stench. It was very embarrassing to say the least... I think they're still a little stewed, and rightfully so.

[1] Works great yes, but hazardous to say the least. Should that container ever get knocked over, I have flaming lighter fluid running everywhere. It's not really an issue where I do it even if I have a spill, but would never consider using the method around kids, pets, morons or anyone who might try it on their own... and whole heatedly do not recommend anyone try it.

Erik

Reply to
Erik

Lacquer thinner has a bunch of different solvents in it, including aromatics, exact composition depends on evaporation speed. But xylene, benzene and various subsitution products of same will all burn with a whole lot of choking smoke. Great for a smudgepot, not so great for fire starting. I'd only use it for a solvent, myself. If I HAD to use something off the solvent shelf for lighting charcoal, I'd grab the naptha can.

Stan

Reply to
Stanley Schaefer

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