Piano Finishes

[Farrell]

There are two basic ways to fill grain (although grain-filling is not
desired in some cases). One is like you describe - spray on coat after coat
while sanding between coats to fill grain. The other is to use some type of
grain filler - often a paste-type filler - to first fill the grain before
applying topcoat. Less topcoats are then needed to achieve a completely
grain-filled finish.

Terry Farrell
Piano Tuning & Service
Tampa, Florida
mfarrel2@tampabay.rr.com

----- Original Message -----
From: "David Ilvedson, RPT" <ilvey@jps.net>
To: <pianotech@ptg.org>
Sent: Monday, November 20, 2000 10:57 AM
Subject: Re: Piano Finishes


> I haven't done any refinishing in a long time, but back when I did we
always
> sanded between coats.  The idea is to fill the grain, right?  What am I
> forgetting?
> David I>
> -----Original Message-----
> From: Farrell <mfarrel2@tampabay.rr.com>
> To: pianotech@ptg.org <pianotech@ptg.org>
> Date: Monday, November 20, 2000 4:53 AM
> Subject: Re: Piano Finishes
>
>
> >Most oil-based finishes - polyurethanes, epoxies, enamels, etc. and
> >water-based finishes require sanding between coats to provide a bond
> between
> >finish coats. Nitrocellulose laquer (most common type used for decades)
has
> >a unique property of 100% burn-in. Each subsequent coat will melt into,
or
> >partially dissolve, the previous coat, thus providing a great
coat-to-coat
> >bond, and eliminating the need to sand between coats for adhesion
purposes.
> >This feature can perhaps save about 4,000 hours (maybe more for me) of
> >sanding on a multi-coat piano refinishing!
> >
> >Terry Farrell
> >Piano Tuning & Service
> >Tampa, Florida
> >mfarrel2@tampabay.rr.com
> >
> >----- Original Message -----
> >From: "Clyde Hollinger" <cedel@supernet.com>
> >To: <pianotech@ptg.org>
> >Sent: Monday, November 20, 2000 6:30 AM
> >Subject: Re: Piano Finishes
> >
> >
> >> Friends,
> >>
> >> I am not into case refinishing, and I would like to know.  What is
meant
> >by
> >> burn-in?
> >>
> >> Regards,
> >> Clyde Hollinger, RPT
> >> Lititz, PA, USA
> >>
> >>
> >> > And the 100% burn-in quality
> >> > is a real plus, and is not time sensitive.  In other words, you do
not
> >> > have to recoat within a certain window to keep the burn-in effective.
> >>
> >>
> >>
> >
> >
>
>