BLACK OXIDE Iron finish.
November 1st, 2010, 11:24 PM
#1
Seasoned beater pilot.
Thread Starter
Join Date: Jan 2007
Location: Chicago
Posts: 5,468
BLACK OXIDE Iron finish.
I just found this recipe in Popular Mechanics March, 1933 issue.
Dissolve 1 oz. of Copper nitrate in 4 oz. distilled water.
[Make sure your bolt heads are nice and clean. I'd wire wheel them, Hit them with the mapp gas torch, to burn off any oils, and then wire wheel them again with an uncontaminated wire wheel.]
Heat up your bolt head on the gas burner for about 15 seconds to get it a little hot, and then dip it in the solution. A greenish coating will form. Carefully hold your bolt head above the burner to turn it to desired shade of black.
Dissolve 1 oz. of Copper nitrate in 4 oz. distilled water.
[Make sure your bolt heads are nice and clean. I'd wire wheel them, Hit them with the mapp gas torch, to burn off any oils, and then wire wheel them again with an uncontaminated wire wheel.]
Heat up your bolt head on the gas burner for about 15 seconds to get it a little hot, and then dip it in the solution. A greenish coating will form. Carefully hold your bolt head above the burner to turn it to desired shade of black.
November 2nd, 2010, 01:42 PM
#4
Hangin' out...
Join Date: Dec 2008
Location: Scottsdale, AZ
Posts: 608
Thread
Thread Starter
Forum
Replies
Last Post
