Here is some interesting information on Penetrating Oils.....

[Highbinder]

We came across this information awhile back, if you do your own repairs you may be interested in this.....


Penetrating Oils Compared

Machinist's Workshop magazine actually tested penetrates for break
out torque on rusted nuts. Significant results! 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. Results
relative to 'naturally rusted' conditions considered equivalent in standing.

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 Automatic Transmission fluid (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. A local machinist group mixed up a batch and
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

I plan on mixing up some of the home brew after I use up my PB Blaster which I had always thought was the best of the lot.... ....its seems according to the test that liquid wrench which I had used for years had almost 100 lbs. difference from the newer products..

[rainman]

Thanks Highbinder me and a friend was just talking about this same thing but I did not know about the ATF Acetone mix.  Think I to will mix me some up and try it next time i need it.  In the past i have used and keep a can on hand of the PB balster and that stuff works better than anything that i have found on the market.
thanks again

Rainman 

[6jugzz]

Here's my home brew.......If you want to tap (thread) a hole in any kind of steel,alumn.,brass,stn. stl.,plastics....just use Crisco. It will stick to the tap and not run off the tool until it is heated up by the work preformed. Works for drilling , reaming & sawing as well. I been using this old trick since the late sixties.

[Normandog]

Yep, i been using the PB Blaster. Didn't think anything could be better. Thanks for the post Don. I'll have to mix up some home brew. 

[ArmyValker]

I love Aero(kano) kroil. It really gets down in the TIGHT places. I used it to remove spark plugs from an aluminum head one time. . .

[big turkey]

Good post Don.

Been using Liquid Wrench and PB Blaster for a while now.

So liquid Wrench gets the nod over PB BLaster.

Got it.

As far as tapping goes it matters to what type metal you are working, hand soap works

great on Cast Iron.


Tap magic is really good on cold rolled steel but should not be used on aluminum.

Anything with Molybdenum as an ingrediant is good for your tapping needs.

Just a little from a Machinist of the last 29 years.

But good ole black oil is good to have on hand to chase threads or tap in most metal working.

Trim sol in the coolant tank is good but most people don't have coolant shooting out of a tank

in a domestic setting.

Crisco I'll have to try that one.

Sounds fairly inocuous.

Big Al

[Valkpilot]

Be careful with the acetone.  It will attack many plastics and is probably bad for your paint.

[jammer]

Ever try Breakredd?

[jammer]

Break Free. is the product I refrer to!

[alph]

we use a product here called TG-10.  it is a mix of graphite and spray teflon.  works real good but does stain your hands.  made by a company called aero-chem.  good stuff.

[Highbinder]

Just a reminder, if you make up the home brew of Acetone and tranny fluid, be careful around painted areas....I would treat it like it was brake fluid when working with it near paint...

[hotglue #43]

I've been using Kroil for several years and really like it.. except for the smell...LOL  It does help ya bust loose rusted parts better than anything I have tried.  Will have to make some home brew to try out....just don't want to mix it with my other home brew...

[BigAlOfMD]

I have both liquid wrench and WD-40 on my garage shelf.
WD-40 is much safer for some uses such as removing tape from paint.

[3fan4life]

That is interesting....

I've used Amsoil's MP for years...



http://www.amsoil.com/storefront/amp.aspx

I'd have been interested in seeing how it faired against the others.

[Charlie McCready]

Good post Don, I will add....for machining aluminum (turning, drilling, milling, or tapping) isopropyl alcohol works good too. I used it for 30 years in the shop I worked in. Use it at home now. I have a small shop at the house since I retired.

[~ Timbrwolf]

....what happens when ya drop yer cellphone in it ? .. 

[Printer Mike]

Wondering how long the acetone ATF mixture will last...

[big turkey]

Penetrating Oil now theres a product that I can get behind.

Everybody needs a little of this now and again.

Would like to pour a Drum of Don's homebrew on Congress to get thier heads screwed off and

back on straight.

Nice one and everybody have very looseend up day.

Al

[6jugzz]

Good post Don.

Been using Liquid Wrench and PB Blaster for a while now.

So liquid Wrench gets the nod over PB BLaster.

Got it.

As far as tapping goes it matters to what type metal you are working, hand soap works

great on Cast Iron.


Tap magic is really good on cold rolled steel but should not be used on aluminum.

Anything with Molybdenum as an ingrediant is good for your tapping needs.

Just a little from a Machinist of the last 29 years.

But good ole black oil is good to have on hand to chase threads or tap in most metal working.

Trim sol in the coolant tank is good but most people don't have coolant shooting out of a tank

in a domestic setting.

Crisco I'll have to try that one.

Sounds fairly inocuous.

Big Al

Well as a Journeyman Tool & Diemaker (since 1978) and a Mech. Engr. I have tried it all. For me the crisco is the best all around for anything u need to tap. I only use soap on wood and to take a bath.

[Ghillie]

I would have liked to know how the seafoam brand of penetrating oil would have done.

[¿spoom]

Find an old enough Machinery's Handbook and you'll find lard and kerosene as tapping fluid of choice for many applications. (also a good place for the loading capacities of leather belts, but not the kind ya wear )

[6jugzz]

Find an old enough Machinery's Handbook and you'll find lard and kerosene as tapping fluid of choice for many applications. (also a good place for the loading capacities of leather belts, but not the kind ya wear )

+1 bought my first machinists bible in 1968....still got it. Had to buy a newer one when all this metric sh*t started. Kerosene is mostly used for alumn. But I think Crisco works just as good and is alot more friendly to the earth.