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<p>[QUOTE=&quot;Victor, post: 238136, member: 5454&quot;]Ah Ha now the plot thickens...&nbsp; My girlfriend works in a place that makes industrial film.&nbsp; Not the kind for cameras, but some type of metalized film for transformers, etc.&nbsp; The film comes raw in rolls and they spray silver, zinc, aluminum&nbsp; and other metals on it with heat added.&nbsp; You should see the long round bars of pure silver they get; but that&#039;s another topic.&nbsp;&nbsp; Her department just cuts (slits) it to size.&nbsp; Anyway they have a very controlled environment and the humidity must be kept at a certain strict level.</p><p>They have an instrument (bulb hydrometer) that sets off alarms if the humidity goes beyond or below the parameters.&nbsp; So essentially they are controlling the humidity and temperature.&nbsp; </p><p>&nbsp; And no &quot;specially hired&quot; employees are involved.[/QUOTE]</p><p><br /></p>

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