How much tone is lost by PAINTING a soundboard with gray primer????( YUCK! !!)

[gordon stelter]

I just got an old upright that the action was "media
blasted" on, (I guess). Quite impressive! Looks quite
clean, with only a  bit of roughness imparted to the
wood! 
     G


--- Dean May <deanmay at pianorebuilders.com> wrote:

> No, I wasn't kidding. I've used it to peel paint off
> wood. It works great.
> You only have dust then and no fumes. Should be
> appealing to the Thumper.
> 
>  
> 
> I like 150 Garnet mesh, purchased from Abrasive
> Products, (317) 485-7701,
> about $50 for 100 lbs. Just use it in a cheap siphon
> feed sandblaster. It
> leaves a surface a little rougher than a sanding
> with 150 sandpaper. 
> 
>  
> 
>  
> 
> Dean
> 
> Dean May             cell 812.239.3359 
> 
> PianoRebuilders.com   812.235.5272 
> 
> Terre Haute IN  47802
> 
>   _____  
> 
> From: pianotech-bounces at ptg.org
> [mailto:pianotech-bounces at ptg.org] On Behalf
> Of Michael Magness
> Sent: Friday, August 24, 2007 11:37 PM
> To: Pianotech List
> Subject: Re: How much tone is lost by PAINTING a
> soundboard with gray
> primer????( YUCK! !!)
> 
>  
> 
> I'm not sure if you were kidding ot not Dean I did
> see an article in a
> woodworking mag on blasting finish off of wood, not
> with sand but using
> baking soda and a lower pressure. 
> 
> 
> -- 
> Michael Magness
> 
>  
> 
> On 8/24/07, Dean May <deanmay at pianorebuilders.com>
> wrote: 
> 
> Why not try sandblasting?
> 
> Dean
> 
> Dean May             cell 812.239.3359
> 
> PianoRebuilders.com    812.235.5272
> 
> Terre Haute IN  47802
> 
> 
> -----Original Message-----
> From: pianotech-bounces at ptg.org
> [mailto:pianotech-bounces at ptg.org
> <mailto:pianotech-bounces at ptg.org> ] On Behalf
> Of gordon stelter
> Sent: Friday, August 24, 2007 9:47 PM
> To: Pianotech List
> Subject: How much tone is lost by PAINTING a
> soundboard with gray primer
> ????( YUCK! !!)
> 
>     Quite a  lot, I'd suspect. I just picked up this
> 
> Steinway upright, and found rather thick, gray paint
> all over thre back posts and soundboard.
> Gray sandable primer is, I believe rather soft
> ( = sound absorbing. ) If I have time, I'll get a
> bunch of carbon filters for my gas-mask, and try to 
> blast it off with lacquer thinner in my spray gun,
> with a  bottle brush to get behind the posts.
>     Peace,
>     G
> 
> 
> 
> 
> 
> 
> 
> 



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