[pianotech] plate finishing

[John Formsma]

Thumper! Where have you been? Welcome back. :)

On Wed, May 9, 2012 at 9:19 AM, Euphonious Thumpe <lclgcnp at yahoo.com> wrote:

> Plates were originally finished with shellac as the base ( with bronze
> powder in it) which takes a long time to become brittle. Hence no chipping.
>
> Euphonious Thumpe
>    *From:* Ron Nossaman <rnossaman at cox.net>
> *To:* pianotech at ptg.org
> *Sent:* Tuesday, May 8, 2012 11:49 PM
>
> *Subject:* Re: [pianotech] plate finishing
>
> On 5/8/2012 10:17 PM, Joseph Garrett wrote:
>
> > I've found that using an appropriate counter sink on the
> > screw holes, right after the initial finishing process, helps to
> eliminate
> > some chipping, but ya really have to have all your ducks in a row to get
> > the plate stuffed into the carcus and get the strings on before the
> darned
> > stuff sets up hard. Any suggestions?
>
> Duck straightener, definitely.
>
> Seriously, cleaning out the countersinks and putting a small thin washer
> under nose bolt and perimeter lags or nuts helps tremendously. My biggest
> hassle is what unknown acky pucky the last guy sprayed on as a finish, that
> I don't know exactly how far down I have to strip it to get to something
> trustworthy. At the least, it seems to be best to take perimeter and nose
> bolt nut seat areas down to bare metal before priming. Murphy was an
> optimist when it comes to finish work, in any case.
> Ron N
>
>
>


-- 
John Formsma, RPT
Blue Mountain, MS
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