Piano Plate Cleaning/Polishing

[Euphonious Thumpe]

Ammonia reacts strongly with copper, as in plate gilding ( bronze ). I'd be concerned about using it there.

Euphonious Thumpe


--- On Mon, 9/29/08, William Monroe <pianotech at a440piano.net> wrote:

> From: William Monroe <pianotech at a440piano.net>
> Subject: Re: Piano Plate Cleaning/Polishing
> To: "Pianotech List" <pianotech at ptg.org>
> Date: Monday, September 29, 2008, 10:25 AM
> I don't know.  I've never used ammonia in the piano,
> and don't know if there are parts that the gas from
> ammonia should stay away from.  Any one else know if ammonia
> gas can cause problems with other parts of the piano?
> 
> William R. Monroe
> 
>   From: Jacques von Frasunkiewicz 
> 
>   Regarding polishing/cleaning the plate, the plate is in.
> Is it possible to 
>   still use diluted ammonia of course being careful it
> doesn´t get into the
>   pins or strings?