Piano Finishes

[David Ilvedson, RPT]

We filled the grain and still sanded between coats.

David I.


-----Original Message-----
From: Farrell <mfarrel2@tampabay.rr.com>
To: pianotech@ptg.org <pianotech@ptg.org>
Date: Monday, November 20, 2000 6:06 PM
Subject: Re: Piano Finishes


>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.
>> >>
>> >>
>> >>
>> >
>> >
>>
>>
>
>