Patrick, I'm familiar with verdigris. This is not it. It's BRIGHT green powder, tons of it. Looks like the chalk dust used for art work, Ninja Turtle-like, like the blue chalk powder mixed with water for mating pinblocks to plates, used in carpentry work, etc. LANCE LAFARGUE, RPT LAFARGUE PIANO SERVICES New Orleans Chapter Mandeville, LA. _______________________________ II III II III II III II III II III II III II III II III II III II ------------------------------------------------------- lafargue@iamerica.net ---------- > From: CCLPianos@AOL.COM > To: lafargue@iamerica.net; pianotech@ptg.org > Subject: Green Dust in Action > Date: Friday, February 12, 1999 2:29 PM > > Dear Lance, as a rebiller of Steinway grands I would venture to say the Green > stuff is "Verdigris." The name implies the color green. That is the corrosion > of the center pins. Like rust, but it's green. Over the years, especially in > high humidity areas as New Orleans, this verdigris begins to accumulate and > then spill out of the action centers. (can be found on any of the action brass > parts) If you don't replace all of the infected centers, you'll have the same > problem in a few years/months. It isn't worth the effort to try and "repair" > this mess, if you want a high quality end product. However, for conversation's > sake, I have successfully "reversed" the corrosive nature by bathing the > centers in Lacquer thinner (you must remove the action piece and soak in a > tub). The effect creates large gaps in the action centers, because the > corrosion has been washed out. Now, if you repin, you'll have a nice center, > for about 6 months. Really messy. That's why I like to gut and replace. > Patrick Wethington
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