rusted piano strings

[Greg Newell]

Don,
	I believe the results are conditional upon the string cover and/or
bottom cover not better with them.

Greg Newell
Greg's Piano Forté
www.gregspianoforte.com
216-226-3791 (office)
216-470-8634 (mobile)

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Don
Sent: Monday, February 18, 2008 2:40 PM
To: Pianotech List
Subject: RE: rusted piano strings

Hi Greg,

from: http://unieke.com/Unieke%20Nov%201/fq.htm

"The higher the temperature the faster the rusting (corrosion and
oxidization of metal) occurs. Rule of 75: 75 degrees + 75 % Relative
Humidity = Accelerated Corrosion"

As the DC system is set to 42% RH it will affect rust by slowing down the
process by lowering the RH. It will work better with bottom cover and
string cover.

At 02:15 PM 2/18/2008 -0500, you wrote:
>Mark,
>	I disagree. I do not believe that the addition of a Dampp-Chaser
>system would have the effect you wished for. What makes you believe that it
>would? It's hung under the soundboard, the strings are above, with only
nose
>bolt holes to allow conditioned air to waft upwards. 
>
>Greg Newell
Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.
Non calor sed umor est qui nobis incommodat

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