Sand blasting leaves the roughness. Glass beads, or walnut shells, apparently doesn't damage the wood, but does 'clean' it. John M. Ross Windsor, Nova Scotia, Canada jrpiano at win.eastlink.ca ----- Original Message ----- From: "gordon stelter" <lclgcnp at yahoo.com> To: "Pianotech List" <pianotech at ptg.org> Sent: Sunday, August 26, 2007 8:01 PM Subject: RE: How much tone is lost by PAINTING a soundboard with grayprimer????( YUCK! !!) >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 >> >> >> >> >> >> >> >> > > > > > ____________________________________________________________________________________ > Park yourself in front of a world of choices in alternative vehicles. > Visit the Yahoo! Auto Green Center. > http://autos.yahoo.com/green_center/ >
This PTG archive page provided courtesy of Moy Piano Service, LLC