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The product is used to blacken brass, since a lot of material in our kits are made out off britania metal I played around with this chemical.

Turned out beautiful, the final finished metal looks like true wrought iron.

5b0b39a44ba15_brassblack.JPG.ae81abbe20eaba77ee3b7f79c4555375.JPG

After letting it rest for 24 hours it the surface is quite scratch resistant.

 

 

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Is it the Birchwood Casey Brass Black? If so I have used it and it worked well for me too. But like you point out it needs time to set before it's durable enough to handle.

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ohhj guys..... no I understand why some times  I had problems with  Birchwood Casey Brass Black! I wasnt letting it to set! OK thx to you now I know.

 

Christos

 

ps. indeed it realy gives a wonderfull true wrough iron look.

 

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9 hours ago, mtaylor said:

I find it curious and interesting that it works on britania metal.  But good that it does.

Mark,

Now I wonder what other materials it will work on.

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These blackening agents rely on redox reactions by which either copper carbonate (CuCO3), magnetite (Fe3O4), or selenium oxide (SeO2) are deposited on the metal surface. This would require a electrochemically less stable metal in the alloy. Whether it works for a given alloy probably depends on how much say copper is contained in it.

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Posted (edited)

there are different products from birchwood and other producers for various materials.... alu for example.But even for silver pattina and gold.

15125-aluminum-black-3oz-(1).jpg

Edited by MESSIS

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Just got some brass black and its working well on my brass, much better looking after using it.

 

Ive been pouring some out into a small cap and soaking the parts in that, but im wondering if i can keep the used liquid and pour it back into the bottle after soaking parts in it? Or will that ruin the unused stuff in the bottle?

 

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