I use only pre gluing if the wood /surface is poor. If overdone it tend to harden your mortise, it can be a good thing, but not always (noisy). 3/4 hour is the time needed to glue a set of balance bushings these days (without flaps) thanks Spurlock ! Greetings Isaac OLEG Entretien et réparation de pianos. PianoTech 17 rue de Choisy 94400 VITRY sur SEINE FRANCE tel : 033 01 47 18 06 98 fax : 033 01 47 18 06 90 cell: 06 60 42 58 77 > -----Message d'origine----- > De : pianotech-bounces@ptg.org > [mailto:pianotech-bounces@ptg.org]De la > part de Farrell > Envoyé : dimanche 22 juin 2003 14:24 > À : Pianotech > Objet : Re: key bushing removal- choice of glue > > > 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. > > > > > > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >
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