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<DIV><STRONG><FONT face=Arial>I am obviously not up with the composition, of the
different 'plastics'. I still look at them as 'plastic' regardless of what the
really are.</FONT></STRONG></DIV>
<DIV><STRONG><FONT face=Arial>I wasn't meaning the bushing as not being able to
be reamed, I was wondering if the, what I now know is Styran, would have enough
'give' for the larger pin, or would it split.</FONT></STRONG></DIV>
<DIV><STRONG><FONT face=Arial>And yes, I did have a spare, and replaced
it.</FONT></STRONG></DIV>
<DIV>John M. Ross<BR>Windsor, Nova Scotia, Canada<BR><A
href="mailto:jrpiano@win.eastlink.ca">jrpiano@win.eastlink.ca</A></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=IFixPianos@yahoo.com href="mailto:IFixPianos@yahoo.com">Michael
Magness</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, August 13, 2007 9:21
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Plastic Flanges, Repair or
Replace?</DIV>
<DIV><BR></DIV>
<DIV>I have to assume since you say the piano is only 10 years old that it is
a Kawai? What you are working with ISN'T plastic, plastics are petroleum based
and were tried in pianos years ago and were an abysmal failure! </DIV>
<DIV> </DIV>
<DIV>Kawai uses Styran, a rubber based man made material that has been a
wonderfull success for them. The glue to rebush would be the PVC glue, the
same glue you use to glue keytops to wood. I have not experienced loose pins
just the occasional tight one. I don't understand not reaming for a larger pin
unless the felt was worn through to the styran? </DIV>
<DIV> </DIV>
<DIV>My understanding is the flanges are cheaper to produce yet have closer
tolerances and are impervious to humidity. My point being, perhaps keeping a
small supply of them on hand and tossing them, rather than rebushing them
might be more economical. At some point you need to look at cost vs. time
spent doing the repair of a readily available, fairly economical item. </DIV>
<DIV> </DIV>
<DIV>One other point, do not under any circumstances use the alcohol &
water treatment on the styran flanges if you feel they are too tight. The
alcohol makes the styran brittle and will ruin it. If you have a few just
re-pin if you have many use Naptha& water in a 50/50 mix. </DIV>
<DIV><BR> </DIV>
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<DIV>Michael Magness<BR>Magness Piano Service<BR>608-786-4404<BR><A
href="http://www.IFixPianos.com">www.IFixPianos.com</A><BR>email <A
href="mailto:mike@ifixpianos.com">mike@ifixpianos.com</A>
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