[CAUT] key leads

[Keith Roberts]

You can try sealing it from the air but more than likely it's caused by a
bad mix of recycled lead. Like the expanding action brackets. Maybe lead
from car batteries got in there. Lead is very non reactive in its pure state
and a neutral enviroment.
Will the polyurethane seal off sulfuric acid?
Keith Roberts
On Sun, Dec 20, 2009 at 9:06 PM, <johnparham at piano88.com> wrote:

> I've never tried it, but why not just zapping it with a quick shot of
> clear polyurethane spray to seal the leads?
>
> -John Parham
> Hickory, NC
>
> > -------- Original Message --------
> > Subject: [CAUT] key leads
> > From: "David Ilvedson" <ilvey at sbcglobal.net>
> > Date: Wed, December 16, 2009 11:04 pm
> > To: pianotech at ptg.org, caut at ptg.org
> > List,
> > I have perused the archives about oxidizing key leads.   Seems to have
> been around 1996 or so...I have an Apollo Grand with the beginnings of
> oxidizing leads.   Some sticking keys etc.   My first inclination is to just
> chisel off and seal with lacquer or something like that.   Anyone want to
> hazzard how long it would take to remove the leads and replace with new?   I
> probably should give the customer that option...
> > I'm guessing 1 hour for travel back and forth.   1 hour to disassemble
> and reassemble action.   1 hour to remove leads and a couple to swedge in
> new ones...am I dreaming here?   What do you think.
> > David Ilvedson, RPT
> > Pacifica, CA 94044
>
>
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