This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Don, My limited experience so far is that tuning stability after a soundboard is epoxied is better than before, crown or no crown. I suspect that it has more to do with rigidity of the top surface of the board than moisture content control. Tom Cole Don wrote: >Hi Dean, > >Just because epoxy is "water proof" does not mean that it is "vapor proof". >You may be able to raise the partial pressure, or slow transfer of water >vapor, but eliminating it by coating wood is probably a futile endeavor. > >I suspect that the "better tuning stability" may be simply an almost total >lack of crown. > >At 09:30 AM 20/10/2004 -0500, you wrote: > > >>The theory is the epoxy penetrates the wood and fills the cells. The wood >>cells act as a matrix for the epoxy, this is what Del spoke of in the >>articles. And it does make some sense. So it is not a thin layer of epoxy >>riding on top of the wood that is providing the stiffness and strength, but >>the whole matrix of the wood cells reinforced and filled by the epoxy. >> >>I am planning on trying this out soon and my intent is to epoxy both sides >>of the board. >> >>I would think that the cells penetrated by the epoxy would be resistant to >>any subsequent moisture effects. >> >>Dean >> >> > >Regards, >Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. >Non calor sed umor est qui nobis incommodat > >mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ > >3004 Grant Rd. >REGINA, SK >S4S 5G7 >306-352-3620 or 1-888-29t-uner >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives > > > > ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/0b/c4/50/67/attachment.htm ---------------------- multipart/alternative attachment--
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