It probably depends on the condition of the felt and pin. I've heard on verdigris actions it can last for up to a year but may need ongoing treatment. On normal actions I believe it is more or less permanent. On Sat, Mar 28, 2009 at 5:52 PM, Noah Frere <noahfrere at gmail.com> wrote: > How long does the treatment last? > > -- Ryan Sowers, RPT Puget Sound Chapter Olympia, WA www.pianova.net -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090328/63614f46/attachment.html>
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