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    <div class="moz-cite-prefix">I have not had this experience because
      I don't use Theatrical Paint for Architectural surfaces. Both of
      my performance space floors  are covered with tempered hardboard -
      neither of them has this problem.<br>
      <br>
      There are two possibilities here - either your 'masonite' is
      pretty shitty stuff, or the Rosco product just isn't up to the
      job. <br>
      <br>
      I have instructions posted here:<br>
      <br>
<a class="moz-txt-link-freetext" href="http://www.arts.iup.edu/facthe/gpatrick/instructions/duron%20instructions.htm">http://www.arts.iup.edu/facthe/gpatrick/instructions/duron%20instructions.htm</a><br>
      <br>
      I am pretty specific bout the type of paint - for a reason.<br>
      <br>
      Patrick<br>
      <br>
      On 7/16/2015 2:31 PM, Matthew J. Evans via Stagecraft wrote:<br>
    </div>
    <blockquote
cite="mid:CADC_RHhyOyJU+qUW8dHRk0Je6NKsOSRQ6eKe7c06Wz_1RGw1=w@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <p class="MsoNormal">Over the <span style="mso-no-proof:yes">summer,</span>
          we
          installed a new stage floor surface on our stage.  We used
          double-sided
          tempered hardboard - aka as Masonite.  Yes – I realize
          Masonite is like a <span style="mso-no-proof:yes">brand name</span>
          like Kleenex is to tissue.  The
          hardboard <span style="mso-no-proof:yes">was laid</span> over
          the original
          stage floor made out of maple tongue and groove boards. 
          Expansion gaps <span style="mso-no-proof:yes">were left</span>
          in between each piece of Masonite and
          fastened to the <span style="mso-no-proof:yes">ground</span>
          with Senco 8x1 1/4
          cement board screws. Before the floor was installed. <span
            style="mso-no-proof:yes">We</span> painted all surfaces and
          edges
          with Rosco Tough Prime. I’ve used Tough Prime since it came
          out and
          never had a problem with it.<span style="mso-spacerun:yes">  <br>
          </span></p>
        <p class="MsoNormal"><span style="mso-spacerun:yes"><br>
          </span></p>
        <p class="MsoNormal">After the Masonite <span
            style="mso-no-proof:yes">was
            fastened</span> <span style="mso-no-proof:yes">to the
            ground</span> we noticed
          that the paint was coming off by rubbing our shoe against it. 
          We were
          turning our foot on the edge of the sole and swiping the
          floor.  I'm not
          talking just <span style="mso-no-proof:yes">a regular</span>
          <span style="mso-no-proof:yes">scuff</span> from the rubber <span
            style="mso-no-proof:
            yes">sole;</span> I'm talking paint completely pulling off
          down to raw
          lumber. I contacted Jenny Knott at Rosco and explained our
          situation. She
          informed us that she <span style="mso-no-proof:yes">had</span>
          seen instances
          of this.  She went on to explain how the processing of
          tempered hardboard
          has changed over the years.  Apparently, the processing now
          involves
          linseed oil.  And as we all know, oil and water-based products
          do not <span style="mso-no-proof:yes">mix</span>. She advised
          us to wash the raw Masonite and
          apply more coats of paint. She also advised us to let the
          floor cure for 48
          hours.  <br>
        </p>
        <p class="MsoNormal"><br>
        </p>
        <p class="MsoNormal">The other layer of this onion involves our
          observation of
          lighter colored Masonite. <span style="mso-no-proof:yes">I'm
            used</span> to the
          chocolate brown <span style="mso-no-proof:yes">Masonite.
            Instead,</span> this Masonite
          was blond in color. I contacted the lumber <span
            style="mso-no-proof:yes">yard,</span>
          and they said color <span style="mso-no-proof:yes">didn't
            make a difference</span>.
           The Masonite had a smooth finish on both sides, so I know <span
            style="mso-no-proof:yes">it’s tempered</span>.  We went to
          another lumber
          yard and picked up another batch of Masonite. This time it was
          a little bit
          darker – almost khaki colored - but not the dark chocolate
          color I'm used
          to. </p>
        <p class="MsoNormal">We paid extra attention to washing the
          floor and again
          painted all surfaces and edges.<span style="mso-spacerun:yes"> 
          </span>After
          laying the floor a second time, it was still doing the same
          thing with our
          shoes.<span style="mso-spacerun:yes">  </span>We tried
          several tests using
          different coats of paint and ultimately discovered it would
          take four coats of
          paint to resist scuffing.</p>
        <p class="MsoNormal"><br>
        </p>
        <p class="MsoNormal">It’s been about a week since we finished
          the last coat and yesterday
          we had to lay <span style="mso-no-proof:yes">tape</span> down
          on the floor to
          mask out an area to paint a safety line. Today, when we went
          to pull up the <span style="mso-no-proof:yes">tape,<span
              style="mso-spacerun:yes">  </span>some</span>
          of the top <span style="mso-no-proof:yes">layers</span> of
          the <span style="mso-no-proof:yes">floor</span> came up with
          it.  The tape was down
          for 24 hours. The floor had over 48 hours to dry. </p>
        <p class="MsoNormal">I’m certain we may have a manufacturing
          issue with the
          lumber.<span style="mso-spacerun:yes">  </span>The paint is
          adhering and doing
          its job. Rosco has checked the batch number and everything
          checks out.<span style="mso-spacerun:yes">  <br>
          </span></p>
        <p class="MsoNormal"><span style="mso-spacerun:yes"><br>
          </span></p>
        <p class="MsoNormal">Has anybody experienced this? </p>
      </div>
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</pre>
    </blockquote>
    <br>
    <br>
    <pre class="moz-signature" cols="72">-- 
G. Patrick McCreary
Technical Director
Department of Theater and Dance
Indiana University of Pennsylvania</pre>
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