Glued back action flange

[paulrevenkojones at aol.com]

 Agreed, Ed.

And a way to glue the existing flanges (or any other hard to reach small glue joints is to mix up a 50/50 hide glue/water mix and add a few drops of an industrial surfactant (try your local paint store), then using a needle hypo bottle, squeeze a bead of glue between and around the flange/rail joint (be wary of the flange center). The surfactant allows the glue solids to be absorbed significantly more deeply into the glue joint and also "reconstitutes" the original glue (if it's water soluble). I've used this method for years on old back actions that I'm not replacing, and on upright jack flanges and...the list goes on.

Paul


 


 

-----Original Message-----
From: A440A at aol.com
To: pianotech at ptg.org
Sent: Tue, 8 Jul 2008 6:20 am
Subject: Re: Glued back action flange











<< I fear that more flanges will be following the same failure as this 
instrument acclimates to the desert so someday it will have to be properly 
repaired. 
Would that be a good time to use fasteners or should I stick with the 
original method.  >>

Greetings, 
         
    You will eventually need to glue up a lot of these flanges, so you may as 
well do it right, ie, take the tray out and repair it. Anything else is just 
dragging out the misery. Modern glue will, for all practical reasons, make a 
permanent repair on these rails.  The tray is a very soft wood, so take care 
not to starve the joints. 
        You main job will be educating the customer.  If they have a really 
bad rebuilding job, they will need to understand that the expense has not 
ended.   
Regards, 


Ed Foote RPT 
http://www.uk-piano.org/edfoote/index.html
www.uk-piano.org/edfoote/well_tempered_piano.html
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