VERDIGRIS IS COPPER CORROSION

[gordon stelter]

Thanks, Dale, 
     This brings me back to my original question: 
I can accept that there is something in the wood ( or
bushings ) which reacts with the center-pins to create
verdigris. 
     But copper HAS to be in there somewhere, so where
is it? In the wood, bushings or centerpins ?
Copper is an intermediate plating sometimes used in
electroplating schedules where the top plating is
nickel or silver, which is what made me suspect it was
under the top finish on the pins. It also made me hope
that new pins were copperless, so  that otherwise good
bushings, well-blasted with solvent and lubricated (
to replace the displaced lanolin )  can be re-pinned
without replacement. Like on  this Brown action for
which I am not getting paid very much. 
     There could also have been some antedeluvian
lubricants ( tallowates) which reacted with the
plating, encouraging this corrosion, which linger in 
wooden parts, BUT, if pins are ( sensibly ) no longer
made with copper content, this should no longer be a
problem, right ???
    Honestly not trying to drive anyone crazy here.
Just wanting to know where I can buy pins with
zero-copper content. 
    And if there is more than one supplier, whose?
    Thump


P.S. Yes, I know I could call the suppliers, which is
what I will  do next.


--- Erwinspiano@aol.com wrote:

>  
> Jurgen
>    I have to respectfully  remonstrate strongly 
> about the notion that one 
> has simply to re bush & repin A verdigris steinway 
> flange & it will be fine. 
> Having done this I can assure ONE & ALL  that the
> green crud will come back. 
> Why? because the problem is in the  wood. I
> re-pinned my own L many years ago It 
> took more hours to do than the cost  of a new set of
> shanks & the time to 
> travel them & it didnt' last but  half a year. I've
> treated them in 
> percholrethelene, Lubed them with whatever.  Nothing
> is permanent & it's a waste of time & 
> the clients  money
>   So  Why do  folks want to keep promoting the  myth
> that this garbage can be 
> succesfully repaired? IT CAN'T. Even if parts  can't
> be had it's still not 
> the solution.
>   Respectfully
>   Dale Erwin
> 
> the  bushing.  I am talking about flanges that
> weren't dipped in a  
> "preservative" like so many of the old Steinways.  I
> believe on these  actions, one can 
> get very good results by rebushing the flanges.  A
> lot  of work, no doubt, 
> but the only way to go if parts can't be  had
> 
> 
>  
> 



		
____________________________________________________
Start your day with Yahoo! - make it your home page 
http://www.yahoo.com/r/hs