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Alternatives to Verdi-Care? (Any other BD treatment tips also welcome)
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<p>[QUOTE="otlichnik, post: 5441198, member: 109731"]I agree with gsimonel. In a drier climate it is sometimes ok to risk sealing after a good clean and "bake" (oven at 200 F to drive out remaining moisture). The sealing can work to keep out the moisture that interacts with the cuprous chlorides thus preventing the formation of new BD.</p><p><br /></p><p>But in a humid climate that is almost always doomed to failure as it is so hard to be sure you have all the moisture out before the wax is applied. Any remaining water molecules can then continue to react with the cuprous chlorides under the sealant and you have big problems.</p><p><br /></p><p>I have used benzotriazole in a few cases. Do some research to see if you are interested in it and then a <b><i>whole lot</i></b> more research before using it. It is a hazardous chemical - though that just means gloves and avoid indoor spaces, but it its easy to use safely out of doors. Because it is hazardous it might not be sold in your venue. It can be had as a powder which needs mixing in something (I can't recall what). But I avoided that and found it as a small vial of liquid. You still need to clean the item first, but it then bonds with the copper and forms a sealant preventing more BD. It is different from a wax sealant as it apparently involves the upper layers of the copper atoms - don't ask me how.</p><p><br /></p><p>Not something I recommend lightly, but a hole in the side of a coin kept in a humid environment is exactly the sort of scenario it is good for.</p><p><br /></p><p>SC[/QUOTE]</p><p><br /></p>
[QUOTE="otlichnik, post: 5441198, member: 109731"]I agree with gsimonel. In a drier climate it is sometimes ok to risk sealing after a good clean and "bake" (oven at 200 F to drive out remaining moisture). The sealing can work to keep out the moisture that interacts with the cuprous chlorides thus preventing the formation of new BD. But in a humid climate that is almost always doomed to failure as it is so hard to be sure you have all the moisture out before the wax is applied. Any remaining water molecules can then continue to react with the cuprous chlorides under the sealant and you have big problems. I have used benzotriazole in a few cases. Do some research to see if you are interested in it and then a [B][I]whole lot[/I][/B] more research before using it. It is a hazardous chemical - though that just means gloves and avoid indoor spaces, but it its easy to use safely out of doors. Because it is hazardous it might not be sold in your venue. It can be had as a powder which needs mixing in something (I can't recall what). But I avoided that and found it as a small vial of liquid. You still need to clean the item first, but it then bonds with the copper and forms a sealant preventing more BD. It is different from a wax sealant as it apparently involves the upper layers of the copper atoms - don't ask me how. Not something I recommend lightly, but a hole in the side of a coin kept in a humid environment is exactly the sort of scenario it is good for. SC[/QUOTE]
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Alternatives to Verdi-Care? (Any other BD treatment tips also welcome)
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