Hot Hide Glue Problem

[Dave Davis]

This one from Jurgen is first class ~~ 




----- Original Message ----
From: David Ilvedson <ilvey at sbcglobal.net>
To: pianotech at ptg.org
Sent: Friday, October 26, 2007 7:00:57 PM
Subject: RE: Hot Hide Glue Problem

The preferred hammer popper offer is ?  

David Ilvedson, RPT
Pacifica, CA  94044

----- Original message ----------------------------------------
From: "David Love" <davidlovepianos at comcast.net>
To: "Pianotech List" <pianotech at ptg.org>
Received: 10/26/2007 4:20:44 PM
Subject: RE: Hot Hide Glue Problem


>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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