Slick Key Bushings.

david c. brown dcbrown@mail.utexas.edu
Fri Apr 5 08:03 MST 2002


Dear List-

Steinway now treats key bushings, rep cushions and key end felt with 
liquid Maclube 444. Drag is negligible after treatment and lasts 
longer than Protek.  My 2 cents.

David

>
>He showed me that pushing a bit sideways on the key whilst pushing
>downwards revealed a lot of friction. So I started checking it out by
>over emphasizing the sideways component of depressing a key and found
>that there was actaully quite a bit of drag there.
>I took the worst of the two and removed the action, top action, and
>started looking at the key bushings. They were a bit worn, and I was
>aware of that before hand. There was also a blackish buildup of some
>combination of dirt dust and corrosion from the pin. So I decided to
>just try and add a couple drops of CLP to each bushing and also re coat
>the pins.
>
>The affect was astounding.  We normally think when we play that it is
>just a downward motion of the key we are dealing with.... but this
>experience has demonstrated better then any other I have had that there
>is much more to it then that. The action feels and plays like silk
>compared to how it felt before this treatment.

David C. Brown RPT
Staff Piano Technician
School of Music
The University of Texas at Austin
mailto:dcbrown@mail.utexas.edu


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