Artificial aging?

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Fruitysloth
Posts: 421
Joined: Apr 10, 2018

by Fruitysloth »

Has anyone seen/done things like this before?

<LINK_TEXT text="https://www.ebay.com/itm/Bach-stradivar ... SwrTFdWYru">https://www.ebay.com/itm/Bach-stradivarius-36B-Artificial-aging/282237716767?hash=item41b6adc91f:g:qoIAAOSwrTFdWYru</LINK_TEXT>

I've seen it on some Shagerl and BAC horns, and a few for sale by James Burton iii, but I don't know how they go about doing it. It's a super cool look, are there any major drawbacks to doing something like this to a horn, or is able to be polished out?
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Doubler
Posts: 435
Joined: Jan 07, 2019

by Doubler »

Here are some examples: <LINK_TEXT text="https://www.youtube.com/results?search_ ... rass+brown">https://www.youtube.com/results?search_query=how+to+make+brass+brown</LINK_TEXT> . I would expect that it might take some work to polish out. I'd experiment on spare brass parts, tubing, scrap, etc.
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hornbuilder
Posts: 1384
Joined: May 02, 2018

by hornbuilder »

Any patina that is induced chemically, is only on the surface of the metal, and it can be buffed off if desired. There are dozens of different finish possibilities, based on the chemical used, and the color derived from that chemical. Do some Googleing for more info. The instrument would be lacquered to seal the finish, and prevent it from wearing off or changing.
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Lastbone
Posts: 56
Joined: May 15, 2019

by Lastbone »

Woodworkers sometimes use an artificial brass ager for antique restorations, check this link.

https://www.rockler.com/darkening-solution
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tbonesullivan
Posts: 1959
Joined: Jul 02, 2019

by tbonesullivan »

That... looks like crap, sorry. All they did was take off the lacquer and use brass black, or something similar. They probably didn't properly soak it in water for 24 hours to remove the oxidizing agent either.