<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body bgcolor=white lang=EN-US link=blue vlink=purple> <div class=Section1> Perchloroethylene (PERC or dry cleaning fluid) seems to work but it is considered a highly toxic substance.  Goose juice or other applications that  use baltusrol can also be useful—though questionable for the permancence.  You need to work the parts (move them a lot with your hands after application) and also control the humidity with a Dampp-Chaser.    <div> David Love davidlovepianos@comcast.net www.davidlovepianos.com </div> -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Jim Johnson Sent: Wednesday, November 29, 2006 8:12 PM To: pianotech@ptg.org Subject: Steinway upright verdigree   <div> I have a customer with a turn of the century Steinway upright with a very sluggish action.  There is verdigree in most of the action centers.  I have treated them with engine starter fluid, followed by Protek which usually works on grands, but in this case, there are still quite a few flanges that are still a little slow.  Any suggestions?  (I apologize that I haven't researched to see if this question has already been answered in this forum, but I just joined tonight and I haven't figured out how to use the archives yet.) </div> <div> Jim </div> </div> </body> </html>