shellac under varnish

[gordon stelter]

No, but since I sign everything I do ( like all the
workers at Knabe used to ), my reputation would be
impugned.
     Thump

--- Avery Todd <avery@ev1.net> wrote:
> Well, I know it's wrong but do you think you'll
> still be
> around in 50 - 75 years? :-) I won't!
> 
> Sorry, but I couldn't resist!
> 
> Avery
> 
> At 02:36 PM 08/29/03 -0700, you wrote:
> >Yeah! But what about 50 years from now? 75?
> >      Thump
> >
> >--- David Love <davidlovepianos@earthlink.net>
> wrote:
> > > I've always used shellac under varnish and never
> had
> > > a problem.  I like it
> > > for a variety of reasons not the least of which
> it
> > > provides a nice surface
> > > for rub-on soundboard decals.  I use flake
> dewaxed
> > > blond shellac and mix it
> > > myself.  The canned stuff on the shelf is often
> > > pretty old by the time you
> > > buy it and it only has a life of 3 years.  The
> main
> > > reason I brought it up
> > > was that every time I open a can of varnish I
> can't
> > > help but see on the
> > > label where it says "Do not use over shellac". 
> Well
> > > I've ignored it for
> > > this long, but I thought I'd ask just in case
> there
> > > was something there.
> > >
> > > David Love
> > > davidlovepianos@earthlink.net
> > >
> > >
> > > ----- Original Message -----
> > > From:
> > > To: pianotech@ptg.org
> > > Sent: 8/28/2003 9:27:10 PM
> > > Subject: Re: shellac under varnish
> > >
> > >
> > > In a message dated 8/28/2003 2:00:10 PM Pacific
> > > Daylight Time,
> > > bases-loaded@juno.com writes:
> > >
> > >
> > > Subj: Re: shellac under varnish
> > > Date: 8/28/2003 2:00:10 PM Pacific Daylight Time
> > > From: bases-loaded@juno.com
> > > Reply-to: pianotech@ptg.org
> > > To: pianotech@ptg.org
> > > Sent from the Internet
> > >   David
> > >    I have typically used shellac for a sealer
> coat
> > > on new boards on the top
> > > and bottom before the ribs and bridges get glued
> on.
> > > I like the sealing
> > > properties and it keeps  dirt, glue & water from
> > > glue cleanup from
> > > impregnating the panel during ribbing. I always
> sand
> > > and then coat with
> > > nitro cell. products. No problems here as to
> > > adhesions. I use one good wet
> > > coat of the bullseye in a can, ooooohh I can
> hear
> > > the cringing from hear. I
> > > spray it on. I quit using varnish over shellac
> after
> > > I lost several finish
> > > jobs to the crinkles& varnish is tooo slow to
> cure
> > > for my schedule. What
> > > can I say I'm varnish impaired. Love the smell
> > > though.
> > >
> > >
> > >               Dale
> > >
> > >
> > >
> > > Hi David -
> > >
> > > Shellac is actually an excellent choice for a
> sealer
> > > coat under
> > > "traditional" varnishes, but under the more
> modern
> > > Polyurethane
> > > varnishes, which seem to comprise the majority
> of
> > > the product lines these
> > > days, only dewaxed shellac will allow for proper
> > > adhesion between the
> > > shellac and poly.  Polyurethane is very
> persnickety
> > > about what it adheres
> > > to, to the point where it really doesn't even
> adhere
> > > to itself that well
> > > unless proper techniques are employed.  And
> > > certainly, the natural wax
> > > content found in conventional shellac products
> would
> > > prevent the poly
> > > from achieving good adhesion.  That's my take on
> it,
> > > anyway....  With
> > > dewaxed shellac, you are safe with any finish I
> can
> > > think of.
> > >
> > > Mark Potter
> > > bases-loaded@juno.com
> > >
> > >
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> >
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