Hi Keith, I think it is from the bridge being just a little stiffer. The glue does take up a volume of space in the bridge itself and most likely moves the termination point making the string just a tad shorter, perhaps a .00000000000000001mm but I have found a slight rise after applying CA. Joe Goss imatunr@srvinet.com www.mothergoosetools.com ----- Original Message ----- From: <kpiano@goldrush.com> To: <pianotech@ptg.org> Sent: Sunday, July 28, 2002 11:33 PM Subject: Re: CA Glue / Pin tightner > Joe, as I said in previous post, CA glue acts more to size the hole. It is not a good > filler for cracks as it's strength by itself is not near that of epoxy and tends to be > brittle as Mr jolly pointed out. As a glue sizer I think CA is great as it has good > wicking properties. I'm still wondering why the treble goes sharp when you use it on the > whole bridge. Does it make the whole bridge swell up? > > Keith > > > > > Keith, > > > As long as you have the CA in hand ( it will work the best on tightening the > > > pins where the west system will not ) you might consider doing the bass > > > bridge with CA as well. Here I use my tipper at a 45% and fill each hole, > > > crack or whatever till it is almost to run at each bridge pin and move on to > > > the next pin. > > > I find thar treating each pin twice works best followed by the activator. > > > The activator seems to swell the glue just a tad ( would not use activcator > > > on a grand due to whitish color that results from too much activator ) > > > hopefully holding the pin better. > > > Use something like a newspaper to shield the wrapings from activator > > > contamination. > > > CA to the rescue <G> > > > Joe Goss > > > imatunr@srvinet.com > > > www.mothergoosetools.com > > > ----- Original Message ----- > > > From: <kpiano@goldrush.com> > > > To: <pianotech@ptg.org> > > > Sent: Sunday, July 28, 2002 5:26 PM > > > Subject: Re: CA Glue / Pin tightner > > > > > > > > > > I was told that CA glue works well after pin tightner. I'm going to find > > > out this week as > > > > I'm going to try CA on a piano That pin tite was used. Also I'm going to > > > use the West > > > > system epoxy on bass bridge pins with cracks around them. I'll give a > > > report at the end of > > > > the week. > > > > > > > > Keith R > > > > > > > > > > > > > > > > > Joe e.a., > > > > > > > > > > > > > > > > > > Thans for the reply. > > > > > > > > > What i was wandering about, is if the ca glue would hold on the sticky > > > > > > > > > mess left by the formerly use of pin tightner? > > > > > > > > > Maybe that's a bizare question but if there wasn't been pin tightner > > > > > > > > > used formerly , i would have repin the piano with pins a few sizes > > > > > > > > > larger. > > > > > > > > > > > > > > > > > > Pierre Gevaert > > > > > > > > > Belgium > > > > > > > > > ----- Original Message ----- > > > > > > > > > From: Joe And Penny Goss > > > > > > > > > To: pianotech@ptg.org > > > > > > > > > Sent: Saturday, July 27, 2002 5:42 PM > > > > > > > > > Subject: Re: CA Glue / Pin tightner > > > > > > > > > > > > > > > > > > > > > > > > > > > Pierre, > > > > > > > > > It has been my experience that the CA glue will make the piano > > > > > > > > > tunable. But consider it the last rites for that piano unless you plan > > > > > > > > > on restringing and installing a new block in the future. > > > > > > > > > So far I have only used CA on terminal patients. Not on pianos of > > > > > > > > > great value. > > > > > > > > > Joe Goss > > > > > > > > > imatunr@srvinet.com > > > > > > > > > www.mothergoosetools.com > > > > > > > > > ----- Original Message ----- > > > > > > > > > From: Gevaert Pierre > > > > > > > > > To: pianotech@ptg.org > > > > > > > > > Sent: Saturday, July 27, 2002 9:19 AM > > > > > > > > > Subject: CA Glue / Pin tightner > > > > > > > > > > > > > > > > > > > > > > > > > > > Hi list, > > > > > > > > > > > > > > > > > > I'd like to experiment with ca glue on an old piano witch has lose > > > > > > > > > tuning pins. > > > > > > > > > This piano has already been treated with pin tightner a few years > > > > > > > > > ago. (pins still a little to loose) > > > > > > > > > Suposing that it is not possible to put new pins because the former > > > > > > > > > use of this stuff called pin tightner. > > > > > > > > > I was wandering what would be the reaction/effect of the ca glue > > > > > > > > > versus pin tightner. > > > > > > > > > Any comments? > > > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > Pierre Gevaert > > > > > > > > > Belgium. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
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