Hot Hide Glue Problem

[David Love]

I can assure you that I've been removing them that way for about 30 years
without introducing any moisture.  Ungar Heat Gun or smaller Weller Gun,
heat the joint, pop them off with a pair of removing pliers.  I can usually
heat up an entire section at time and go through and remove them, i.e., it's
not necessary to do them one at a time.  Interestingly, as the joint cools
it becomes more difficult suggesting the glue does indeed respond to heat
alone.  There is humidity in the air, of course.  Whether the hygroscopic
properties of the glue itself cause it to absorb some moisture from the air
which is activated by the heat, I don't know.  Even if that's the case,
rarely do we work in zero humidity situations.  But, to be sure, they can be
removed with the application of dry heat.  No illusion here.  Try it.


 

David Love
davidlovepianos at comcast.net
www.davidlovepianos.com 

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Michael Magness
Sent: Friday, October 26, 2007 2:33 PM
To: Pianotech List
Subject: Re: Hot Hide Glue Problem

 

 

On 10/26/07, Berley Antoine Firmin II <firmin1 at bellsouth.net> wrote: 

Now that I have had my coffee, I should have said that Hot Glue forms a
Chemical BOND, not a reaction. If done correctly it will adhere to glass and
break off chunks of glass if removed. Stained glass people do this. Some
great Q & A are found here: 

 

http://player-care.com/hide_q-a.html

 

Berley


David,

 

Based on what I know of hide glue, I doubt you remove it with a purely dry
heat some humidity must be introduced somewhere.

Read the attachment and you'll see what I mean.

 

 FRETS.COM.htm
 

Mike

-- 
Learn from yesterday, live for today, hope for tomorrow. The important thing
is to not stop questioning.-- Albert Einstein



Michael Magness
Magness Piano Service
608-786-4404 
www.IFixPianos.com
email mike at ifixpianos.com 

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