Piano Finishes

[David Ilvedson, RPT]

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.
>>
>>
>>
>
>