Blackening Metal Chemically

Dec 05, 2006 7 Replies

I quite often make subassemblies and parts by soldering brass. I have several chemicals that very effectively blacken the brass: the best is Birchwood Casey but Blacken-It works too. But neither of these works very effectively on (standard) lead-based solder. Any suggestions for another chemical or am I stuck painting them? TIA Norm



On Tue, 05 Dec 2006 14:22:05 GMT, with neither quill nor qualm, "Norm Dresner" quickly quoth:

Try a patina solution:

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I bought some for stained glass work but haven't done any yet.

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Brownell's used to carry a solder-black for sweated joints, don't know if they still do. Be aware that any of these compounds doesn't leave a very durable finish. Flat black lacquer works well for me for camera stuff.

Stan

The last time I picked up a bottle of gun blueing, it indicated that it was for "steel" only. That's why I have the B-C Brass Black.

Norm

I didn't see any in the catalogs I have. Just ordinary "steel" and "brass" specific stuff. Norm

I'll check out the local craft stores which do carry some stained glass supplies.

Thanks Norm

Right off the web site:

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Stan

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