soundboard finish

[Erwinspiano@aol.com]

---------------------- multipart/alternative attachment
In a message dated 12/18/2002 7:25:56 PM Pacific Standard Time, 
Wimblees@aol.com writes:

> Subj: Re: soundboard finish 
>  Date: 12/18/2002 7:25:56 PM Pacific Standard Time
>  From: <A HREF="mailto:Wimblees@aol.com">Wimblees@aol.com</A>
>  Reply-to: <A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A>
>  To: <A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A>
>  Sent from the Internet 
> 
>               Marcel
> .    I'm sure every body has there own protocol. I always finish the bottom 
> first . I'll add a note to Terrys post and that is you can't scribe along 
> the belly rail so before you glue the ribs on place them in the notches and 
> scribe a pencil line on the rib next to the glue surface. Later after the 
> ribs are glued on you are then able to connect the dots from rib to rib 
> with a pencil linewhich designates the area you don't wish to finish. It's 
> fun just like tracing your hand in kindergarten.
>    I do however tape off the bridge glue joints and trim joints , sand the 
> board and spray on a coat of shellac. WHY? It's easier to keep raw spruce 
> from being contaminated with glue when the bridges go on. Raw spruce will 
> absorb glue readily and show up after the finish goes on as a discoloration 
> along the bridge even though you thought for sur you got it all off. Quite 
> annoying to me. I use this same protocol on the bottom of the board as well 
> before the ribs go on. It's one extra taping but that less the usual 
> nashing og teeth is worth it.

               I often do most of the finishing before the board gets glued 
in. Usually > all the sanding sealer goes on and then final coats and rub out 
> after installation. Currently I,m experimenting with just built up coats of 
> shellac. It's hardness has in my opinion excellent acoustic properties. 
> Beautiful luster as well.

                 Regards--Dale Erwin





> >> Hello, I'm just about ready to finish the underside of my new
>> soundboard. Should I avoid finishing the surround area (where it's
>> going to get glued to the rim)? Is it better to finish both sides at
>> the almost same time ? Is it safe to finish the top side "before
>> gluing the bridges" or should I finish the underside, then glue the
>> bridges, then the board to the rim and then only finish the top ??
>> 
>> Many questions but I prefer to ask before than after.
>> 
>> Thanks
>> 
>> Marcel
>> 
>> 
> 
> I've never done a new board before, but it would seem to me that you would 
> want to glue bridges and ribs to raw wood, instead of finished wood, for a 
> more solid adhesion. 
> 
> Just my thoughts on the matter.
> 
> Wim


---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/9b/19/02/d9/attachment.htm

---------------------- multipart/alternative attachment--