General Modeling > GENERAL

Turning brass to bronze

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kurt:
Does anybody have any recipes for chemically treating brass to take on a bronze appearance?
 
Kurt

Rokket:
I do! I recommend the shortcut, but here's what I did:








I filed the snub hub to a point, and then soaked it in saltwater and vinegar for many, many weeks. It was faster to add a bit of hydrochloric acid.

http://www.rokket.biz/modelsweb/rokket/u557/prog1.shtml

OldNoob:
Bumping this thread because i recently experimented with White Vinegar and Peroxide.
It actually does work but the smell can be unpleasant.
Mixing a small amount of 50/50 percent into a small glass jar with top and throw the parts in the mixture re seal it shake it from time to time and it works in a few days in the jar.
Or outside the jar, brush the brass with the mixture and letting it fully dry between coats sometimes it takes several coats.

Rokket:
nice to know, both of those are easily available and in small quantities. I only had the hydrochloric because of some brick work at the time, but easier and cheaper to by vinegar and peroxide!

OldNoob:
Been researching this a bit further and it seems for getting a weathered "bronze" your way is better Rokket.


The vinegar and peroxide method appears to be best for etching the brass in preparation soldering or gluing.

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