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<p>[QUOTE=&quot;Jaelus, post: 3972121, member: 46237&quot;]To be clear, I didn&#039;t say harm. I said impact, as in if there is toning on the other side you don&#039;t want to be affected.</p><p><br /></p><p><br /></p><p><br /></p><p>In general, yes, but mineral oil I use on coins of iron, mild steel, zinc, and lead. It&#039;s been used to protect these metals for centuries, and in many cases is the reason coins of these metals have survived to the present day.</p><p><br /></p><p>I&#039;ve actually used MS70 as a dip before. If I want to treat the entire coin equally it does work, however, the swab method is more effective in my experience. I&#039;ve also used VerdiCare as a soak for the full coin. Again, I feel like spot treatment works better, but it depends on your goals.</p><p><br /></p><p>I don&#039;t disagree with most of what you&#039;re saying. You talk about my examples being exceptions, but exceptions are really what I use these products for. In general I buy coins that don&#039;t need any conservation, and I use only acetone, xylene, and distilled water before submission, just to make sure there are no unseen contaminants that could affect the coin after slabbing.[/QUOTE]</p><p><br /></p>

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