[pianotech] Tight plastic flanges

[Byeway222 at aol.com]

Hi David,
I have come across this a lot over the years.  These East German  'Pianic' 
actions suffer a lot with this problem.  Zimmermann,  Niendorf  etc. being 
typical names.  I have replaced all the hammer  flanges with a Renner wood 
equivalent on 3 pianos over the  years.   It was explained to me a long time 
ago that the type of  synthetic adhesive used to glue the cloth to the 
plastic flange has  seeped through the cloth and become sticky.  This is why 
Protec is only  partly the answer.  For the n'th time I recently re-centered some 
 hammer flanges on a Niendorf  which I have been visiting for the past  20 
years.   The lever flanges presumably don't show up as much because  they 
have more return weight on their side.  The jacks are plastic, but in  a 
wooden flange?
 
Richard
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