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Improving my rust blueing of guns





I am trying to perfect a rust blue using the usual copper, acid, salts, etc everything is going great except the colour needs to be a deeper ebony black I have tried a higher copper content but it just seems to stop the solution making the metal rust any suggestions?

Paul S [last name deleted for privacy by Editor]
hobbyist - Barnstaple, North Devon, England
2003



"Firearm Blueing and Browning"
by Angier

on AbeBooks

or Amazon

(affil links)

You need to heat the bluing mixture to 50 °C this should make the copper combine with the barrels and in turn giving a blacker tougher finish. It sounds crazy but 15 years of restoration I can assure you this is the best way.

I have been there.

John Breed
- London, U.K.
2005


Thanks John I will try this, since my last message my work has improved greatly, so this will be an added bonus, I had trouble with the water so started using rain water, this has also helped but I keep getting the odd grey patch at the top or bottom end of the barrels. I know I have been thorough with degreasing etc?

Paul Stevens
- Devon, England
2006




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