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<p>[QUOTE=&quot;desertgem, post: 619767, member: 15199&quot;]I have a software security program that has a slider to select from &quot;don&#039;t let anyone in&quot; to &quot;everyone welcome&quot;. Generally I have it set for medium high.</p><p><br /></p><p>Coin cleaning/conservation is similar to me. Set your level where you can live with it.</p><p><br /></p><p>&nbsp;If you want your 1956-D EF Lincoln to last for a century without changing, it will probably cost many times its value to do so. If you don&#039;t send it to NCS, Use an acetone rinse, put into an airtight or intercept holder, zip lock bag, remove air, store in perfect environmental conditions, check 4 times a year. ( maximum). Or ~ Wash with diluted detergent and water, rinse with tap water, air dry and put it into a paper tube with other like ones.( minimum setting). </p><p><br /></p><p>Middle range to me for Unc. or real rarities (any grade) ~ rinse vertically with acetone, keep vertical as it air drys, put into an inert holder, from a mylar 2x2, hard plastic, air-tite, intercept, TPG holder, etc. If you want to use a product like Blue Ribbon, Coin-Care,etc. remember that it contains oil, and if it is not a synthetic oil, it will have some teenie % of sulfur compounds in it. I have read that synthetic clock oil is the best ( and most expensive) to use as it is formulated &quot;never&quot; to gum nor corrode metal.</p><p><br /></p><p>I have paper tubes for the non-keepers as I sort through bags or collections, acetone for middle level up, and I have zip lock bags, mylar flips, hard plastic holders, vacuum zip bags, heat sealer, and even synthetic clock oil ( never used on a coin, I have clocks!). you can set any level.&nbsp; </p><p><br /></p><p>Beginners should set their &quot;slider level&quot; to high until they know what they have, experienced ones can adjust their slider as needed.&nbsp; IMHO.</p><p><br /></p><p>I know some ( at both ends ) may not agree, but so be it. Good Karma to all.</p><p><br /></p><p>Jim[/QUOTE]</p><p><br /></p>

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