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#1
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Mercury Amalgam Gilding
Another little project that I always wanted to pursue. I had an old "how
to" formula book that said to make a mercury copper amalgam, spatula it over holes in old copper cookware, and then just let it set up overnight to effect a permanent repair. It seemed absurdly simple. Would it be possible to make a mercury copper amalgam, press it into an open faced mold, and then heat it or just let it set up, to make a piece of jewelry with good detail? Then the next logical step would be to use Shakudo (copper/gold) amalgam. I have been told that copper and Shakudo are difficult to cast. This seems like a reasonable alternative method for making one-off's. Any suggestions? I have no experience working with amalgams. |
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#2
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Don Wagner wrote:
Another little project that I always wanted to pursue. I had an old "how to" formula book that said to make a mercury copper amalgam, spatula it over holes in old copper cookware, and then just let it set up overnight to effect a permanent repair. It seemed absurdly simple. Would it be possible to make a mercury copper amalgam, press it into an open faced mold, and then heat it or just let it set up, to make a piece of jewelry with good detail? Then the next logical step would be to use Shakudo (copper/gold) amalgam. I have been told that copper and Shakudo are difficult to cast. This seems like a reasonable alternative method for making one-off's. Any suggestions? I have no experience working with amalgams. If you value your health, don't gain experience working with amalgams. If you want to die young and/or be called "mad like a hatter", try to get as much experience as you can. Abrasha http://www.abrasha.com |
#3
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Any suggestions?
1. Dont even attempt to experiment with any amalgams that include mercury. 2.You will contaminate your enviroment, if your in an urban enviroment youll contaminate your neibours as well. 3. You most probably would die a slow and unpleasnt death. 4. If you use your copper amalgam for repairing your copper cook pot youll poison anyone that shares a meal with you. Today, you could be sued for millions. 5. Your in serious breach of your EPA regulations . 6. Making jewellery with amalgam would work, BUT youd poison the wearer. Are you sure you want to do this? 7. It is NOT a reasonable way to make anything. Just a few thoughts for you to start with. |
#4
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"ted.frater" wrote:
Any suggestions? 1. Dont even attempt to experiment with any amalgams that include mercury. 2.You will contaminate your enviroment, if your in an urban enviroment youll contaminate your neibours as well. 3. You most probably would die a slow and unpleasnt death. 4. If you use your copper amalgam for repairing your copper cook pot youll poison anyone that shares a meal with you. Toal rubbish! Once the mercury has been evaporated, it is no longer dangerous. If this were not the case many millions of people would have died because of their very common silver and gold amalgam fillings put in their teeth by dentists around the world. Today, you could be sued for millions. 5. Your in serious breach of your EPA regulations . 6. Making jewellery with amalgam would work, BUT youd poison the wearer. Again rubbish. Once the mercury has evaporated out of the amalgam, their are no longer poisonous consequences. Fire guilding, with the use of gold amalgams, was commonly used to gold plate silverware from the 16 through 18th centuries, before electroplating was invented. The danger was mostly to the people working with the mercury, not to the people using the finished product. Abrasha http://www.abrasha.com |
#5
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YES Abrasha,
you are correct in saying that once the mercury has evaporated the gold or whatever is safe. Thank you for clarifying this. BUT you do not explain that it is the process of making up, applying and evaporating the mercury from the amalgams that is dangerous. That is what the original poster WANTS to do!!!. and thats how I read his posting.I clearly said "dont even attempt to experiment " etc, that means actually USING the mercury!! Its THAT process that has the dangers I listed. Surely you cant be denying that? and saying my list of suggestions are rubbish? Please explain your position further or retract it. |
#6
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Hello Don;
Personally, I've always been fascinated with the idea of mercury amalgams and how they work, but the idea of even the possibility of exposure to mercury vapor has discouraged me from ever pursuing these interests. I just don't think it's worth the risk. I remember seeing a documentary, I think it was, about a Japanese fishing village whose residents were exposed to high levels of mercury in the fish due to some industrial contamination. It was heartbreaking and horrifying to say the least. Suppose you didn't poison yourself, but inadvertently exposed someone else to such toxins? I have some ideas you might pursue to accomplish volumetric forms in Copper and Shakudo without trying to cast these metals, which are uncooperative to casting without neutral atmosphere melting methods. Have you ever thought of using hydraulic die forming? Or even chasing and repousse? David L. Huffman "Don Wagner" wrote in message ... Would it be possible to make a mercury copper amalgam, press it into an open faced mold, and then heat it or just let it set up, to make a piece of jewelry with good detail? |
#7
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Don Wagner wrote:
Another little project that I always wanted to pursue. I had an old "how to" formula book that said to make a mercury copper amalgam, spatula it over holes in old copper cookware, and then just let it set up overnight to effect a permanent repair. It seemed absurdly simple. Would it be possible to make a mercury copper amalgam, press it into an open faced mold, and then heat it or just let it set up, to make a piece of jewelry with good detail? Then the next logical step would be to use Shakudo (copper/gold) amalgam. I have been told that copper and Shakudo are difficult to cast. This seems like a reasonable alternative method for making one-off's. Any suggestions? I have no experience working with amalgams. With all these dire health and ecological warnings I suppose someone should suggest some substitutes. Google up Kum Boo and non-cianide electroplating (not absolutely safe, but it won't destroy the city). But, as far as I can tell, there is nothing contemporary that has the same look as amalgam parcel gilt. Too bad. -- Cheers, m at http://www.mbstevens.com ....via Tux and Ice -- 0% GatesBloat |
#8
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"ted.frater" wrote:
YES Abrasha, you are correct in saying that once the mercury has evaporated the gold or whatever is safe. Thank you for clarifying this. BUT you do not explain that it is the process of making up, applying and evaporating the mercury from the amalgams that is dangerous. That is what the original poster WANTS to do!!!. and thats how I read his posting.I clearly said "dont even attempt to experiment " etc, that means actually USING the mercury!! Its THAT process that has the dangers I listed. Surely you cant be denying that? and saying my list of suggestions are rubbish? Please explain your position further or retract it. I suggest you read my post I posted "before" your post again, and also reread my post following yours more carefully. -- Abrasha http://www.abrasha.com |
#9
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"Abrasha" wrote in message ... Once the mercury has been evaporated, it is no longer dangerous. If this were not the case many millions of people would have died because of their very common silver and gold amalgam fillings put in their teeth by dentists around the world. Again rubbish. Once the mercury has evaporated out of the amalgam, their are no longer poisonous consequences. Fire guilding, with the use of gold amalgams, was commonly used to gold plate silverware from the 16 through 18th centuries, before electroplating was invented. The danger was mostly to the people working with the mercury, not to the people using the finished product. Abrasha http://www.abrasha.com Let me wear my Dentist hat for this one: I hope that I quoted Abrasha correctly above The mercury constantly leaches out of amalgam fillings and the leakage can be measured and quantified. It never stops until all of the amalgam is gone. In the human body there are those who believe that as the mercury is leached out of the amalgam, it goes elsewhere in the body where it can do major damage over time. The last word is not yet out even among the scientists who work in this area. suffice it to say that some countries have banned mercury amalgams, and in the US where it is allowed, some states have stiff regulations regarding the disposal of excess amalgam (it goes into toxic waste containers and the human body!). Low level constant exposure to mercury can lead to neurological irreversible symptoms, massive exposure can lead to death. Mercury the metal, mercury in amalgam and mercury compounds are all toxic. I do not have a good replacement for the amalgam either in teeth or in jewelry. Charles Friedman DDS Atlanta, GA moving soon to smokey LA |
#10
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Don Wagner wrote:
Another little project that I always wanted to pursue... Since the hazards of mercury amalgam gilding have already been hit upon, I thought I'd provide just a bit more historic perspective on the process. The technique has been used in the west for over 2000 years (Pliny described the technique in the 1st c. AD) and was extremely popular during the middle ages. Folks who didn't want to (or couldn't afford to) shell out for expensive and scarce gold could often afford gilding, which used a comparatively minute amount of the precious metal. Many items would have been prohibitively expensive or structually unsound if made with gold, but the patron wanted the richness of the finish. Numerous gilded copper alloy and silver artifacts still exist (jewelry, church trappings, statuary, etc) and are available for study. The remark was made that the process has a distinctive look that modern techniques don't replicate, and I totally concur. However, our predecessors understood the serious dangers of the process, and some of the first medieval guilds were established by gilders (allied terms being gylde, gild, guild...golden) in order to protect the secrets of the process, and to care for the families of the craftsmen who almost invariably died prematurely from the effects of mercury poisoning. The decorative effect of mercury gilding is unique and beautiful, but not worth the considerable risk. |
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