strings rusting on bridge

[Piano Forte Supply]

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I have seen this effect as a result of bridge "clean-up" work done prior 
to restringing.  Some kind of cleaning solution was used on the bridge, 
which soaked in and left a residue in the wood.  (Perhaps a wood 
bleaching agent?) The bridge pins and strings touching the bridges were 
coroded and rusted after a few years.

I would bet that restringing again would only temporarily address the 
symptoms.  Re-capping the bridge is probably the real solution to the 
problem.

Jurgen Goering

>
> A small grand I recently serviced is showing severe rust/corrosion at 
> bridge pins and across the deck of the bridge. This is a 90 year old 
> 5' Fischer that was restrung only 6 or 7 years ago. It appears that no 
> bridge work was done, i.e. new pins, cap, ect. There is no corrosion 
> anywhere else on the wire. Ideas as to what would cause this? Bass 
> strings are beginning to break at the front bridge pin. I am not so 
> concerned about this piano (too late) as I am in learning what caused 
> this for my own education.
> Fenton Murray, RPT
>
>

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