key bushing removal- choice of glue

[Farrell]

Good replies so far. I have found that if the original glue was hide, just water and a couple hours will have them falling out (I add a little alcohol at first so that the water can wick into the felt). I did a set of Baldwin keys recently with the bushings glued in with some kind of white glue. I soaked them with water for some hours (recollection is four to six hours) and some were kinda loose. I hit them with the soldering iron and brass caul inserted into the mortise and all popped out very easily and quickly. I did no post-removal cleaning of the mortise.

I then size the mortise with Spurlock mortise sizing cauls and allow an overnight dry.

Next day - swab down bare mortises with thin hot hide glue (as Bill Spurlock instructs) and then install new bushings with hot hide glue. I have not had the need to use any kind of retarder. I put glue on a length of bushing material and do about three bushings before reloading with glue.

Works for me.

Terry Farrell
  
----- Original Message ----- 
From: "Tom Driscoll" <tomtuner@attbi.com>
To: <pianotech@ptg.org>
Sent: Sunday, June 22, 2003 12:00 AM
Subject: key bushing removal- choice of glue


List,

            Part 1

Most of my key rebushing jobs have been on older keys and steam removed
the old bushings easily.

            Tomorrows job will be on a mid 80's Young -Chang and I'm not
sure what type glue was used.

            I searched the archives and read of Wallpaper remover,steam
, or  soaking bushings with an ammonia solution. I read that the
wallpaper remover can inhibit adhesion on rebush. 

            Any tips appreciated.

            Part 2. 

            Pvc-E ? For rebush?

            Back to the future with animal hide glue?

 I confess that my glue pot has spider webs in it 

            I'll be dead when these have to be removed again, but I'm
leaning toward hide glue because I care about the next tech. That's just
the kind of guy I am. 

            Should I add urea to the mix? The ratio suggested was ½ tsp
to 1 tablespoon granules.

            

            Joe Garrett, Don't get mad, but what's the word on PVC-E?
Will I be creating a problem for the aforementioned future tech, or can
it be dissolved easily?

            Awaiting advice with appreciation

            Tom Driscoll

            

            P.S. I don't look to the archives as often as I should, but
that's where Newton lives ,still helping us along our way.