The amplifier jewel came out black too but had some weird coloring on it too, when I wiped the solution off of the piece some of the black flaked off to reveal a slightly golden brass look (my original intent!) and the rest is just an old dirty scuffed black look, it definitely looks old to me. The screw seems to be pretty durable as far as the black goes, it's a matte black with just a little shine on the edges.
I left them both in until they were jet black. Ok, here is a picture of one of the brass plated screws that I lightly scuffed with some red 3M scotchbrite and revealed that it was just a light brass plating on top, and an amplifier jewel scuffed the same but was just a bright metal no plating on that one. The directions say to immerse in water and baking soda solution to neutralize the "acidic effect" so I guess it's some kind of acid FYI. I have not tested to see how durable it is (I suspect it's not that great) but I just thought I'd throw this out there. Or, if you can't find black hardware you could always let your parts sit in the solution until they are thoroughly blackened. I'm not much for relics, but this product might give you a different look that would look good on one of those projects. The directions say you can use #0000 steel wool to knock some of the darkened area off for highlights if you want that look. I took some other pieces out at different lengths of time and they had some splotchy black areas (mostly in scratches or low areas) but with metal highlights in other areas. However, the steel underneath got progressively darker as I let it sit in the solution until it was completely BLACK. I have some brass screws that I was trying to make look antique but they turned out to be just plated so they didn't darken correctly like real brass would have. I was at a local woodworking store yesterday and found a product called Brass Darkening Solution by WSI Distributors and I have to say it's the BOMB! It actually didn't do what I wanted but did something else that is useful. Posted: Sat 8:48 pm Post subject: Brass Darkening Solution
The Guitar Refinishing and Restoration Forum Forum Index Profile Log in to check your private messages Log in Those with all levels of experience are welcomed to participate.įAQ Search Memberlist Usergroups Register This discussion forum is hosted by The Guitar ReRanch and was created to serve those interested in the arcane art/science of guitar refinishing and restoration. The Guitar Refinishing and Restoration Forum It has photos and recipes for thousands of effects.The Guitar Refinishing and Restoration Forum :: View topic - Brass Darkening Solution My recollection is that the NAWCC Library has an excellent tome on surface treatment and patination of metals, but it might be reference only. It's thicker than blueing, though, as it's really a paint, i.e. This blacking technique can also be used at a high temperature on steel to produce a rustproof coating, like blueing. If it's not successful, the fingerprint effect can be put to work by coating the part with oil and baking it. Just as will eventually happen in air, the oils in fingeprints will blacken and stain the metal. Be sure to clean off all coatings and, especially, fingerprints (with acetone) beforehand. However, this method produces the green verdigris patination seen eventually on outdoor bronze.Ī slight tarnish on some alloys of brass can be accelerated by simply baking in air for a short time. It used to be a tradition in the sculpture ateliers to celebrate the successful casting of a major commission by a keg party with an ulterior motive. MRB's jocular suggestion does not rely on the prayers of the nuns, but the chemical effect this has a long tradition (outside the convent!) I believe it's mentioned by Vasari in the 1500's. But they usually give a rather unsubtle effect, even if diluted.
The patinating solutions mentioned are available at stained glass supply stores.
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