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<DIV><FONT face=Arial>Any idea what might explain your observation? I =
don't see
how the glue used on an edge joint could affect the development of panel =
ridges
- be it Titebond, cold/hot hide glue, epoxy, or whatever.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Terry Farrell</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>----- Original Message ----- </FONT>
<DIV><FONT face=Arial size=2>From: "John Hartman" <</FONT><A
[link redacted at request of site owner - Jul 25, 2015]
[link redacted at request of site owner - Jul 25, 2015]
size=2>></FONT></DIV>
<DIV><FONT face=Arial size=2>To: "Pianotech" <</FONT><A
href="mailto:pianotech@ptg.org"><FONT face=Arial
size=2>pianotech@ptg.org</FONT></A><FONT face=Arial =
size=2>></FONT></DIV>
<DIV><FONT face=Arial size=2>Sent: Sunday, September 28, 2003 9:20
PM</FONT></DIV>
<DIV><FONT face=Arial size=2>Subject: Re: Compression ridges and =
hide
glue.</FONT></DIV></DIV>
<DIV><FONT face=Arial><BR><FONT size=2></FONT></FONT></DIV><FONT =
face=Arial
size=2>> gordon stelter wrote:<BR>> > I was wondering today =
if
glue-line creep could be<BR>> > considered a significant factor in =
the (
alleged )<BR>> > self-destruction of compression-crowned boards?
After<BR>> > all, hide glue becomes fairly gelatinous in all =
but<BR>>
> very low humidity, so this, combined with the glue<BR>> > =
line stress
in CC boards could lead to premature<BR>> > failure, and increased =
compression-ridging.<BR>> > But this =
may be
much less of a problem with<BR>> > modern glue =
types.<BR>>
> Right?<BR>> > =
Thump<BR>> <BR>> <BR>> Well Thump,<BR>> <BR>> I think you =
have
this completely backward. Hide glue is the best glue <BR>> for panel =
edge
joints. I had problems with pre made panels in the dark <BR>> past. =
They were
glued with the other alternatives (probably Tightbond) <BR>> and I =
would have
seasonal ridges at the joints. When I made my own <BR>> panels I used =
hide
glue and never had the problem again. I have been <BR>> making my own =
panels
ever since. Piano rebuilding is like baking; for <BR>> the best =
results make
you own pie crust. And the old way with real <BR>> butter taste a lot =
better
the Crisco.<BR>> <BR>> I size the edges with thin hide glue the =
day before
the glue up. Check <BR>> out the photo here:<BR>> <BR>> =
</FONT><A
[link redacted at request of site owner - Jul 25, 2015]
face=Arial
[link redacted at request of site owner - Jul 25, 2015]
/A><BR><FONT
face=Arial size=2>> <BR>> John Hartman RPT<BR>> <BR>> =
John Hartman
Pianos<BR>> </FONT><A =
[link redacted at request of site owner - Jul 25, 2015]
[link redacted at request of site owner - Jul 25, 2015]
face=Arial
size=2>> Rebuilding Steinway and Mason & Hamlin<BR>> Grand =
Pianos
Since 1979<BR>> <BR>> Piano Technicians Journal<BR>> Journal
Illustrator/Contributing Editor<BR>> </FONT><A
[link redacted at request of site owner - Jul 25, 2015]
[link redacted at request of site owner - Jul 25, 2015]
size=2>>
<BR>> <BR>> =
_______________________________________________<BR>>
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