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<p>[QUOTE=&quot;Insider, post: 2990519, member: 24314&quot;]I assure you that any method NCS uses is proprietary.&nbsp; <b>Most KNOWLEDGEABLE, EXPERIENCED folks can remove many types of spots chemically just as NCS does. </b> Some spots can be removed but the surface is destroyed where the spot was.</p><p><br /></p><p>We are wasting time posting as EACH SPOT needs to be evaluated.&nbsp; In 2007 I was told that the folks at NCS evaluated spots using a microscope before deciding what to do.</p><p><br /></p><p>PS&nbsp; NCS does not scrape off spots![/QUOTE]</p><p><br /></p>

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