<table cellspacing="0" cellpadding="0" border="0"><tr><td valign="top" style="font: inherit;"><div>"WD", as everyone on this list knows, stands for "Water Displacement". So it is an oil that is hygroscopic <br />( absorbs water) and in piano actions WILL lubricate them until enough humidity has been absorbed from the air that the wood parts swell up and seize completely.<br /><br /><br />Thumpe</div></td></tr></table>            <div id="_origMsg_">
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                                <span style="font-weight:bold;">From:</span>
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                            David Boyce &lt;David@piano.plus.com&gt;;                            <br>
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                                <span style="font-weight:bold:">To:</span>
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                             &lt;pianotech@ptg.org&gt;;                                                                                                     <br>
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                                <span style="font-weight:bold:">Subject:</span>
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                            Re: [pianotech] WD40 on pinblock                            <br>
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                                <span style="font-weight:bold;">Sent:</span>
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                            Thu, Aug 23, 2012 9:37:08 AM                            <br>
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      <blockquote type="cite">&nbsp;I once followed a store tuner on a new
        Yamaha with a &quot;squeaking damper&quot; complaint. He&#39;d rocked the
        action forward and emptied a WD-40 can inside. He soaked
        strings, bridges, soundboard, the entire back side of the
        action, hammers, dampers, and key ends. The squeak, however,
        eluded him. The piano was trash. That was before Barney,
        unfortunately.<br>
        <br>
        Ron N <br>
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      <br>
      I think that&#39;s kinda wonderful, in a horrible sort of way.&nbsp; It&#39;s
      like people who are &quot;studying&quot; some text or other, and use a
      yellow highlighter pen to highlight every line of every paragraph,
      except for the odd highly relevant phrase here and there.....<br>
      <br>
      It&#39;s funny how some people lack the wit to properly &quot;diagnose&quot;, to
      actually listen for WHERE the squeak or creak is coming from, and
      treat THAT.&nbsp; One hopes there are not too many Doctors who work
      like the WD40 guys.<br>
      <br>
      I suppose on the same general principle, if the piano was making
      something in the room rattle or resonate, the WD40 guy would just
      spray the whole entire room, walls, floor, and ceiling.<br>
      <br>
      Best regards,<br>
      <br>
      David.<br>
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