[pianotech] restoration

Bruce Browning - The Piano Tuner justpianos at our.net.au
Thu Apr 22 04:30:57 MDT 2010


John,
All good tips and observations, without malice, I'm sure.
It's great to get extra information and experienced comment to add to our
"toolbox" of information.



> The prior sanding of the ivories was quite unnecessary.  The job
> could have been done with just peroxide (the cream, as I said, is
> more convenient and labour-saving) and the ivory polished afterwards.
> This way you lose no thickness of ivory.  A few months ago I bleached
> a set that was far worse than this Steingraeber without needing to do
> any sanding.  I don't use a buffing wheel to polish the ivory either
> since that abrades the softer "summer growth" more than the harder
> parts and it is always detectable.  After bleaching I remove any
> scratches with P800 - 1200 wet-n-dry and then polish with chalk and
> alcohol on a hard block covered with white sheep leather.  It's
> almost as quick and leaves a glass-like surface.
>
> I found his way of removing the chase bushings painfully slow and
> inefficient.  All he needed to do was soak them and leave them for a
> bit before pulling them out clean with small flat-nose pliers.  No
> chisels (I noticed his knife was terribly blunt -- cfr. our Moroccan
> turner's perfect chisel) no files.  His glue was also overcooked and
> sticky.




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