rusted piano strings

[mccleskey112 at bellsouth.net]

Don: 60% RH at what temp? Thats when the problem occures.
Gerald
----- Original Message ----- 
From: "Don" <pianotuna at accesscomm.ca>
To: "Pianotech List" <pianotech at ptg.org>
Sent: Monday, February 18, 2008 4:18 PM
Subject: Re: rusted piano strings


> Hi Gerald,
>
> An instrument unfortunately doesn't need to be below the dew point (though
> that may well start rust up quickly). All it takes is 60% RH for it to 
> "get
> going". Once rust starts the best one can hope for is to "slow it down".
>
> At 04:06 PM 2/18/2008 -0600, you wrote:
>>It's been my experience that the reason that strings form rust is because 
>>of
>>condensate that form on them when the atmospheric condition is correct for
>>such an occasion. I think that occurrence is called dew-point. Dose that
>>make sense?
>>Gerald McC
> 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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