[pianotech] basic or full service

[Terry Farrell]

I seriously doubt  the Rust Blocker Shield will provide any beneficial  
effect in a piano - especially a grand, but verticals also. Pianos are  
not sealed - they are too open to the surrounding environment and  
humidity will equilibrate with the room they are in. The Shield states  
that it is effective in enclosures up to volumes of 400 cubic feet. In  
a piano, if you were to tape all the openings to seal it, at about 25  
cubic feet interior volume, it may well offer some rust protection.  
But being that the piano interior will equilibrate with the room - an  
average room being maybe 2,000 cubic feet - and that's if the room  
were sealed off - the thing appears being used way beyond its intended  
capacity.

Terry Farrell

On Mar 12, 2010, at 11:15 PM, wimblees at aol.com wrote:

>
> WHAAAAATTTT???????  Speak facts/science/physics to me, not  
> marketing. WT# is it?
>
> Terry Farrell
> I don't know what it is, but for information on this product, go to www.bull-frog.com
>
> Wim
>
> -----Original Message-----
> From: Terry Farrell <mfarrel2 at tampabay.rr.com>
> To: pianotech at ptg.org
> Sent: Fri, Mar 12, 2010 5:45 pm
> Subject: Re: [pianotech] basic or full service
>
> WHAAAAATTTT???????  Speak facts/science/physics to me, not  
> marketing. WT# is it?
>
> Terry Farrell
>
> On Mar 12, 2010, at 1:43 PM, wimblees at aol.com wrote:
>
>>
>> BTW, what on earth is a Rust Blocker shield?
>> As I tell my customers:  "Rust blocker emits a vapor that settles  
>> on metal parts in the piano, which prevents moisture form adhering  
>> to the metal, thus preventing rust."  The vapor comes from a piece  
>> of foam, that is kept in a plastic cover until I open it, inside a  
>> box, one foot square by 1/4" thick. I put in the bottom of an  
>> upright, or lay it on the plate in a grand. (usually under a string  
>> cover). It is replaced once a year.
>> Wim
>> -----Original Message-----
>> From: Terry Farrell <mfarrel2 at tampabay.rr.com>
>> To: pianotech at ptg.org
>> Sent: Fri, Mar 12, 2010 3:18 am
>> Subject: Re: [pianotech] basic or full service
>>
>> Sounds reasonable to me Wim. BTW, what on earth is a Rust Blocker  
>> shield?
>>
>> Terry Farrell
> =

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