rusty bolts and nuts

Moderators: warmrain, mimoza

rusty bolts and nuts

Postby grumpy » Sun Dec 22, 2013 11:44 am

I found this very interesting…….I think you will as well.

Penetrating Oils –Machinist’s Workshop magazine 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. Steve from Godwin-Singer says that ATF-Acetone mix is best, but you can also use ATF and lacquer thinner in a 50-50 mix.

Hope it helps!
Posts: 53
Joined: Fri Oct 05, 2012 10:19 pm

Re: rusty bolts and nuts

Postby clonjers » Sun Dec 22, 2013 4:01 pm

Thank you,
First Mate
Posts: 216
Joined: Thu Oct 26, 2006 2:24 pm
Location: Long Beach, CA

Re: rusty bolts and nuts

Postby mimoza » Mon Dec 23, 2013 10:12 pm

Thank you!
Cap'n Bri
HC 33 "Mimoza" Hull number 43
Mimoza is the name of the Admiral, a flower, and a star - the eastern arm of the Southern Cross, also called Becrux.
User avatar
First Mate
Posts: 677
Joined: Thu Jan 04, 2007 2:14 am
Location: Pacific NW

Return to Miscellaneous Stuff

Who is online

Users browsing this forum: No registered users and 1 guest