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Copper Lovers: What is Your Opinion on the Use of Chemicals to Protect Old Copper?
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<p>[QUOTE="beef1020, post: 1507471, member: 24544"]I have never used CARE, and blue ribbon was off the market before I started to collect, but I would have no qualms using either. I have used verdi-care for similiar purposes before, and I have the same camel hair brush. As Conder point out I would be hesitant to use these on mint state coins but for lower grade coins I use it. </p><p><br /></p><p>Specifically, for late date large cent attribution it is often essential to use a solvent like xylol to remove build up dirt and grim from the coin. If the coins are not cleaned first, the attribution points are often hidden from view underneath the grim. But, once you have used the solven, the coin's surface has been striped to it's bare metal and is more likely to react with the surounding atmosphere, so a light brushing with one of these oils helps to protect the surface.</p><p><br /></p><p>Just a thought if you are concerned, but you can use this on some test coins, new small cents and see what it does.</p><p><br /></p><p>As an aside, I brought a coin to one of the aforementioned copper dealers to check it's authenticity and was actually shocked at the vigours brushing he gave my coin, after I gave him permission of course, needless to say the coin showed no hairlines or other damage. Be careful with the brush, but they are very soft.[/QUOTE]</p><p><br /></p>
[QUOTE="beef1020, post: 1507471, member: 24544"]I have never used CARE, and blue ribbon was off the market before I started to collect, but I would have no qualms using either. I have used verdi-care for similiar purposes before, and I have the same camel hair brush. As Conder point out I would be hesitant to use these on mint state coins but for lower grade coins I use it. Specifically, for late date large cent attribution it is often essential to use a solvent like xylol to remove build up dirt and grim from the coin. If the coins are not cleaned first, the attribution points are often hidden from view underneath the grim. But, once you have used the solven, the coin's surface has been striped to it's bare metal and is more likely to react with the surounding atmosphere, so a light brushing with one of these oils helps to protect the surface. Just a thought if you are concerned, but you can use this on some test coins, new small cents and see what it does. As an aside, I brought a coin to one of the aforementioned copper dealers to check it's authenticity and was actually shocked at the vigours brushing he gave my coin, after I gave him permission of course, needless to say the coin showed no hairlines or other damage. Be careful with the brush, but they are very soft.[/QUOTE]
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