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<p>[QUOTE=&quot;halfcent1793, post: 2908597, member: 86853&quot;]<b>Coin Care</b> [Betterbilt Chemicals, Vernon, CA] is very different from the product that EACers extoll. According to the label, Coin Care contains D-limonene, hydrotreated light petroleum distillates (<i>i.e., </i>kerosene, a carcinogen) and hydrotreated light parafinnic distillates (<i>i.e., </i>mineral oil). Limonene is a major component of orange and lemon peels, and, indeed, Coin Care smells like citrus fruit. Limonene and kerosene act as solvents to remove oil and the dirt embedded in it from the surface of the coin. The mineral oil replaces the oils removed from the surface with clean oil. Limonene and kerosene both evaporate very slowly, so they remain on the coin far longer than the solvents in Care and Blue Ribbon.</p><p><br /></p><p>What is sold today as &quot;Blue Ribbon&quot; is different from the old product, because it an Care contained 1,1,1-tricholroethane, which was banned in 1996 as an ozone depleting substance. The new Blue Ribbon replaces it with chlorofluorocarbons of undefined nature. Use of any of these products is perfectly acceptable for Early American Copper collectors. </p><p><br /></p><p>Having tried them all, I would say that you don&#039;t want to leave a lot on your coin, but a little does protect it, and if you store the coin properly, you don&#039;t need to worry about getting a lot of dust on it. That said, if you aren&#039;t interested enough in your coin to look at it and give it a quick brusing once or twice a year, you should probably sell it to someone who is. </p><p><br /></p><p>Back to Coin Care, the limonene and kerosene evaporate very slowly and give the coin a &quot;look&quot; that is somewhere between normally brushed and lacquered. I don&#039;t care for that look, but I don&#039;t think it&#039;s harmful.[/QUOTE]</p><p><br /></p>

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