Fw: Fw: shellac sealer on plate yes yes yesYES

[Tom J Armstrong]

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
> > >
> > >
> >
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> 
>