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boats
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Zischang rust blue
Aug 21st, 2010 at 9:15am
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Guys, tell me about the Zischang rust blue process.  Is it appropriate for a Low wall built up in Winchester special sporting configuration ?

This for my Low Wall project rifle

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Green_Frog
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Re: Zischang rust blue
Reply #1 - Aug 21st, 2010 at 3:28pm
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Boats,

     I don't have the process but I can tell you already it will be appropriate for that low-wall.  Just remember you then have to bring it to a CSV match to show it off!   Wink

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Re: Zischang rust blue
Reply #2 - Aug 21st, 2010 at 4:49pm
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Thanks Froggy

Box of parts ?

Boats

  
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Mike_Hunter
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Re: Zischang rust blue
Reply #3 - Aug 21st, 2010 at 7:14pm
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The Zischang rust blue formula that I know is simply Aqua-Regia  (mixture of hydrochloric acid and nitric acid), distilled water and some Iron filings added and allowed to dissolve. 

Should work fine.

Several recipes call for nails, I would caution against modern nails, many are zinc plated, zinc will be dissolved by the aqua-regia, but may cause problems with the final blue.  Degreased steel wool works nicely. 

V/r

Mike
  
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Re: Zischang rust blue
Reply #4 - Aug 22nd, 2010 at 7:09am
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Boats.

the basic formula for rust blue given in Roy Dunlap's book "Gunsmithing" is as follows.
Nitric acid                4 oz
Hydrochloric acid     3 oz
Iron (clean nails)     1/2 lb
Water (distilled)       1 quart

Mix acids outdoors then add nails. after the nails have dissolved add the water. If stored in a dark place solution will keep almost indefinitely.

I have used Pilkingtons (sp) American Rust blue from Brownells with great success. However when I used the last of it I ordered Brownells house brand and it works as well at a much reduced price.
  
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