PDA

View Full Version : Rust on knife blade...



Wrider
Wed Jul 10th, 2013, 07:09 PM
So I was out in Seattle and got some salt water on my pocket knife. That caused some minor surface rust in small spots.

Anybody have a good way to get rid of it so it doesn't spread? I like this knife...

Grim2.0
Wed Jul 10th, 2013, 07:26 PM
Fresh blood.

Wrider
Wed Jul 10th, 2013, 08:17 PM
Point me toward Hickenlooper/Morse and I'll gladly try that...

Lomax
Wed Jul 10th, 2013, 08:46 PM
Naval Jelly will remove it.

http://www.homedepot.com/p/Loctite-16-fl-oz-Naval-Jelly-Rust-Dissolver-Bottle-553472/203009241#.Ud6pG21t43M

Marc

rybo
Wed Jul 10th, 2013, 10:28 PM
Wd40

teamextreme
Wed Jul 10th, 2013, 10:55 PM
Muratic Acid

Chris
Thu Jul 11th, 2013, 12:02 AM
steel wool and WD-40.

bulldog
Thu Jul 11th, 2013, 08:07 AM
As others said WD40

Interesting fact: It was called that because it was a test to find something to displace water and their 40th test worked; hence name WD40!

FZRACE97
Thu Jul 11th, 2013, 08:24 AM
Close. The military needed a protective coating on the nuclear missles
in silos and aboard subs - a water displacement coating. After 40
different formulae they got it right.

great stuff.

rybo
Thu Jul 11th, 2013, 08:45 AM
Anyone know the primary ingredient of WD40?

TFOGGuys
Thu Jul 11th, 2013, 08:50 AM
Anyone know the primary ingredient of WD40?

Kerosene

rybo
Thu Jul 11th, 2013, 09:28 AM
Kerosene

Close...

Zanatos
Thu Jul 11th, 2013, 09:31 AM
I'm pretty sure it's fish oil.

Ghosty
Thu Jul 11th, 2013, 09:36 AM
Close. The military needed a protective coating on the nuclear missiles, in silos and aboard subs - a water displacement coating. After 40 different formulae they got it right.
Nice, never knew that! Love WD-40.

Anyone know the differences between WD-40, Carb cleaner, QuickStart fluid, and Brake/Parts cleaner? Just out of curiosity...

rybo
Thu Jul 11th, 2013, 09:40 AM
I'm pretty sure it's fish oil.

Yeah, unfortunately that one is a myth.

cbirchem0724
Thu Jul 11th, 2013, 10:03 AM
Naval Jelly will remove it.

http://www.homedepot.com/p/Loctite-16-fl-oz-Naval-Jelly-Rust-Dissolver-Bottle-553472/203009241#.Ud6pG21t43M

Marc

x2 this stuff is the best, works on exhaust poop too

Generic
Thu Jul 11th, 2013, 10:23 AM
Good to know, I just got some grease on my lower pipe

Chris
Thu Jul 11th, 2013, 08:03 PM
I would advise against the naval jelly. It is made to strip off ship paint and rust before painting, it will RUST your stuff.

cbirchem0724
Fri Jul 12th, 2013, 08:17 AM
I would advise against the naval jelly. It is made to strip off ship paint and rust before painting, it will RUST your stuff.

Never had a problem with it rusting anything.. Ive used it to remove rust on anything from mufflers to handguns

bulldog
Fri Jul 12th, 2013, 08:27 AM
Naval Jelly??? They really could not have come up with a better name...reminds me of a bunch of Navy guys doing a circle jerk :lol:

Ezzzzy1
Fri Jul 12th, 2013, 09:05 AM
WD 40 Facts and Myths (http://wd40.com/about-us/myths-legends-fun-facts/)

teamextreme
Fri Jul 12th, 2013, 10:35 AM
I would advise against the naval jelly. It is made to strip off ship paint and rust before painting, it will RUST your stuff.
No, water and oxygen rusts your stuff. Naval jelly just strips everything off the metal, rust, paint, etc, down to bare metal, giving a clean metal finish to allow a fresh coat of paint or whatever you're going to use to prevent rust from forming again. If you don't add anything to prevent the rust from re-forming after using the naval jelly, it will re-form again.

rybo
Fri Jul 12th, 2013, 11:34 AM
No, water and oxygen rusts your stuff. Naval jelly just strips everything off the metal, rust, paint, etc, down to bare metal, giving a clean metal finish to allow a fresh coat of paint or whatever you're going to use to prevent rust from forming again. If you don't add anything to prevent the rust from re-forming after using the naval jelly, it will re-form again.


Yes and no - Navel Jelly is phosphoric acid, which is very good a removing rust, but it is also a catalyst. This means that it can accelerate the rate of oxidation on reactive metals (such as the iron found in steel). If you are going to use navel jelly to remove rust from something, then treat that metal immediately with something that inhibits oxidation. This can be some kind of oil. If you have firearms, then a light coat of gun oil will go a long way. If not you can use mineral oil or (gasp) WD-40.

bulldog
Fri Jul 12th, 2013, 11:40 AM
Yes and no - Navel Jelly is phosphoric acid, which is very good a removing rust, but it is also a catalyst. This means that it can accelerate the rate of oxidation on reactive metals (such as the iron found in steel). If you are going to use navel jelly to remove rust from something, then treat that metal immediately with something that inhibits oxidation. This can be some kind of oil. If you have firearms, then a light coat of gun oil will go a long way. If not you can use mineral oil or (gasp) WD-40.
What will you use to inhibit oxidation then? Just curious what is used to treat that.