Formula for cold black oxide

J

Jonesy

Joined
Oct 25, 1999
Messages
158
I know that there is a way to dip carbon steel blades into a mixture to get a cold black oxide finish without a heated blueing tank. I can buy it premixed from machinery/tooling stores but I figured it was a simple formula and I could purchase the chemicals seperately and mix my own.
Any chemist out there to give it a shot.

Thanks


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Scott Jones
Heck yea I invented it ...What is it???
Good things aint cheap and cheap things aint good
 
Buy it premade. It would be a lot cheaper for you. Use the kind with selenic acid in it, called "Formula 44-40," IIRC. Walt
 
I second. Buying chemicals, especially toxic ones, requires quite a bit of effort, and getting consistent results will be even harder. Buy it from the store.

--JB

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e_utopia@hotmail.com
 
Walt, you do remember correctly. It is called 44-40. It can be ordered through Brownells or obtained at better gun stores.
 
Jonsey
before I had a tank I used super blue heated to about 150 degrees
It works well also as stated above brownells sell there own brande of cold blue if heated does a good job. Its just as easy to get a 1/4 carbon tank and an old grill and hot blue for under 100.00 for the whole set up. I found the grill at the curb somewhere and just use it outside. I like the results much better from hot blue.. dont use a ss tank..
use carbon. The salt creeps over the top of the thank over time so I just clean the grill once a year and shazam its good as it was when I started.. cheap and dirty hahahhaha


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Web Site At www.infinet.com/~browzer/bldesmth.html
New Web at www.darrelralph.com

 
Gotta cool backyard recipe. In the trapping world the traps are treated prior to use to eliminate oils and odors and to stain the carbon steel for camoflage. The treatment was commonly boiling sumac or elderberries or black walnut husks (not shells) or a mixture of the above. I tried this with and 0-1 tool steel blade. The finish was like the old fashion blueing, black with blue streaks. I put the blade to use and found the finish to remain and to stall rusting (won't prevent rusting).

Probably not what you were looking for, but still cool.

Dan
Hannon Bearpaw Knives http://www.freeweb.pdq.net/dhannon/hannon.htm
 
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