Rust Removal

[just bob]

Wonder if a home made concoction link this would work better on rust removal? If not it is bound to be useful for some;




"Machinist's Workshop" recently published information on various penetrating oils. The magazine reports they tested these products for "break out "torque" on rusted nuts and bolts. A subjective test was made of popular penetrating oils, with the unit of merit being the torque required to remove the nut from a "scientifically rusted" bolt.
Average torque load to loosen nut:

No Oil used ........................516 foot pounds
WD-40 ..................... ........238 foot pounds
PB Blaster .........................214 foot pounds
Liquid Wrench ......................127 foot pounds
Kano Kroil .........................106 foot pounds
ATF/Acetone mix..................... 53 foot 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 price.
ATF/Acetone mix is best, but you can also use ATF and lacquer thinner in a 50/50 mix. ATF = Any type of Automatic Transmission Fluid

[tjmurphy]

That's pretty interesting Bob. ATF and acetone, got to remember that. Back in the day when I was able to work on my own cars I used brake fluid and found that to be an exceptional penetrant. Seems with the older cars you always had an old can of brake fluid laying around.

[cattaraugus57]

Wow this is great info!
I'm always trying to get something rusted loose
And over the last 40 years I have tried most every commercial product.
Can't wait to give this one a go...

[jerryd6818]

Good information. Thank you.