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<DIV><FONT face=Arial size=2><FONT face=Arial size=2>List,</FONT></DIV>
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<DIV><FONT face=Arial size=2> Some helpful information on
glues:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>White glue (Elmer's, consumer grade glue,
etc..,) and yellow glue (Titebond, industrial grade wood glue,
etc..) are both PVA'S, (Polyvinyl Acetate) and both are "Aliphatic
Resins". PVC-E glue is also in the PVA family with a few different compounds
added to make it remain semi-flexible when dry. Aliphatic Resin is a
general chemistry term that implies "at the molecular level, these products
(glues, etc..) arrange themselves in chains". When yellow glue came
out, manufacturers needed a fancy slogan to differentiate yellow
glue from white glue so they called it Aliphatic resin, but in
reality, not economy, they both are Aliphatic Resin. A lot of
the Yellow Glues are stronger than the White Glues, but they are both PVA'S
and are both Aliphatic Resins. PVA'S are further broken down into subgroups
based on their strength, application, water resistance etc.. The PVA'S are a
huge family of glues that most of us use and think they are something distinctly
different because of what they are called or what someone recommends they be
used for. Choose your glues carefully, any supplier/manufacturer can supply you
with a specifications sheet or MSDS, this will give you the properties of the
glue and most importantly will tell you what the MANUFACTURER created the glue
for, not simply what a supply house markets it as. Of all the glue books I
have read, "The Glue Book" by William Tandy Young makes all this easy to
understand. Remember, spare the next technician the pain of fixing an improper
glue job, because the next technician might be you. I think Reblitz said
something like that first.</FONT></DIV>
<DIV> </DIV></FONT></DIV>
<DIV><FONT face=Arial size=2>Michael A. Morvan<BR>Blackstone Valley
Piano<BR>Dedicated To Advancing The Art Of Keyboard Restoration<BR>76 Sutton
Street<BR>Uxbridge, Ma. 01569<BR>(508) 278-9762<BR><A
href="mailto:Keymaestro@verizon.net">Keymaestro@verizon.net</A><BR><A
href="http://www.pianoandorgankeys.com">www.pianoandorgankeys.com</A>
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