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Turn Brass house Numbers to Black

Brass Black Metal Finish on
birchwood_brass

on Amazon or eBay
(affil link)

I have some brass house address numbers that are old and dingy. I want to replace them with black metal numbers, but I can't find any that suit my needs. I remember back in school using a sulfur chemical to oxidize brass. What is the chemical (was it sulfur dioxide?) and will it turn brass black and hold it's blackness under outside weather conditions.

Thank you

David Hendricks
Homeowner - Granite Bay, California, USA
2004

2004

The chemical you are looking for is liver of sulfur [Adv. liver of sulfur ⇦ on eBay or Amazon [affil link] ]. Brass requires lacquering whether it is blackened or unblackened, David.

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