Fw: Fw: shellac sealer on plate yes yes yesYES

[jolly roger]

Hi Dale,
              Many of the old plates were shellac finished, it's easy to
tell just moisten a rag with alcohol and rub an inconspicuous corner.
Roger. 


At 12:14 PM 7/8/01 -0700, you wrote:
> 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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