Would it then follow that the dark area might be a harder layer of wood, which resisted sanding? That would explain the rippling, possibly... --Cy-- ----- Original Message ----- From: "Jon Page" <jonpage@comcast.net> To: <pianotech@ptg.org> Sent: Saturday, May 28, 2005 5:27 PM Subject: Discoloration on underside of pinblock > My guess would be that it is the result of the laminated block going > through the planer. If the planer cut through a few laminations the > dark area is glue or cross-grain oriented wood and the lighter > area a wood lamination. > -- > > Regards, > > Jon Page > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives > > >
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