lead corrosion revisited

[Willem Blees]

That was one of our comments, too. We recognized that the lead used in pianos is a compound. But the question we had was, what other element in lead causes key leads to corrode? Are all?key leads the same compound? Do all key leads come from the same manufacturer? Did Sohmern and Kimball us the same supplier of key leads?



Lots of different questions. ?But no answers.



Willem (Wim) Blees, RPT
Piano Tuner/Technician
Honolulu, HI
Author of 
The Business of Piano Tuning
available from Potter Press
www.pianotuning.com


-----Original Message-----
From: John Delacour <JD at Pianomaker.co.uk>
To: Pianotech List <pianotech at ptg.org>
Sent: Fri, 21 Mar 2008 10:36 pm
Subject: Re: lead corrosion revisited


At 22:53 -0700 21/3/08, Fenton Murray wrote:?
?
>...I just read most of it and 2 things jumped out. End grain of wood >is most harmful, and of all species, basswood is listed as most >harmful.?
?
Whatever wood is in question, and the worst cases I've seen have been in pine, it is adulterated lead that is the cause, as I have said in previous threads on this subject. Chemicals in the surrounding wood and in the air will not do any significant harm to pure lead.?
?
JD?
?
?
?

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