Just a word of warning about shellac. Don't apply it OVER varnish. I once tried that on a soundboard in my young tender years, and watched my beautiful work crinkle up! Tom Armstrong On Sun, 8 Jul 2001 12:14:29 -0700 "Erwinpiano" <Erwinpiano@email.msn.com> writes: > Thanks for the warning David > > I'll use a metal primer next time and then shellac coat if > necessary. After > giving this much thought lately do you or anyone out there have any > definitive answers to 1. what was the original black undercoating > was and > exactly and how it was applied ? 2 Don't you think that the > original gold > coats were either shellac or varnish or both? Premise: I firmly > suspect that > it is possible that whatever one might put over that old and at > times > rather brittle finish could react over time and cause the finish in > time to > peel off in sheets. I've seen a time or too, but not mine yet. All > I'm > saying is that finish products and processes will come back to bite > you in > the rear end when you'all least expect it! > I just sand blasted another plate that finish was chipping and > flaking > off badly. It had been painted over once many years ago with some > kind of > ....... A new finish can not be put over that scenario > successfully. > > Dale Erwin > > > ----- Original Message ----- > From: "David Stanwood" <dstanwood@hotmail.com> > To: <pianotech@ptg.org> > Sent: Saturday, July 07, 2001 2:20 PM > Subject: Re: Fw: shellac sealer on plate yes yes yesYES > > > > > > WARNING! > > > > Years ago I used shellac as a sealer for plates and after a few > years the > > finish started to crackle and in some cases peel off in sheets. I > found > the > > solution in a product call Silicone Stop Sealer which was made by > Mohawk. > I > > have two gallons left... but I called the factory and they put me > through > to > > a chemist who told me that it is half shellac and half lacquer. > > > > The way I use it is to spray on as an undercoat then when it is > quite dry > I > > spray Utilac gold in a spray can... this alas is discontinued as > well. > Then > > I mix about 1/3 orange shellac with the silicone stop seal and > overspray > the > > gold starting with a very thin coat then spraying until the right > golden > hue > > is had... > > > > I love the look, warmth, and feel, especially in tungsten > light.... > > > > I treat the Steinway action rails the same way and it looks almost > like > > polished brass.....but without the eventual tarnish. > > > > Shellac reacts with metal and I had some bad experience mixing > shellac > with > > the powder but I think some experimentation with lacquer/shellac > is worth > > while... > > > > David Stanwood > > > > >From: "Erwinpiano" <Erwinpiano@email.msn.com> > > >Reply-To: pianotech@ptg.org > > >To: <pianotech@ptg.org> > > >Subject: Fw: shellac sealer on plate yes yes yesYES > > >Date: Wed, 4 Jul 2001 07:20:08 -0700 > > > > > >Very interesting post Mark Potter. Once again it may have taken > me > another > > >decade to think of that all by myself but I catch on quick after > a long > > >time! > > > Thanks > > > > > > DAle Erwin > > > > > > > > >----- Original Message ----- > > >From: bases-loaded@juno.com > > >To: pianotech@ptg.org > > >Sent: Wednesday, July 04, 2001 4:10 AM > > >Subject: Re: shellac sealer on plate yes yes yesYES > > > > > > > > >On Tue, 03 Jul 2001 21:43:09 -0700 "Diane Hofstetter" > > ><dianepianotuner@hotmail.com> writes: > > > Dale, > > > > > > Me too, I offer up my gratitude to all who suggested > shellac! > > > After two coats of spray shellac, sanding in between all > coats, and a > > >coat of gold enamel, the fish-eyes are gone and tomorrow I can > put the > top > > >clear coat on. Whew! > > > > > > Diane > > > > > > > > > Hi Diane - > > > > > > I'm glad it worked out for you so well! Yet another > alternative for > you > > >would be to mix bronze powder right in with the shellac and use > that as > > >your finish, or at least as a primer/sealer coat that already has > a > bronze > > >color. I have done it many times with good results every time. > Use the > > >palest color of shellac you can find, though, as a dark shellac > will > yield > > >a darker gold color when mixed with the powder. > > > > > > Shellac is a finisher's right hand man. > > > > > > Mark Potter > > > bases-loaded@juno.com > > > > > > > > > > _________________________________________________________________ > > Get your FREE download of MSN Explorer at http://explorer.msn.com > > > > > >
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