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MMD > Archives > April 2008 > 2008.04.30 > 05Prev  Next

Leather Nuts Cause Corrosion of Metal Valve Stems
By Don Teach

Who has a solution to stop the corroding of metal valve stems caused
by today's tanning process on leather nuts?  I am seeing more valve
stems corroded by the leather than ever on pianos rebuilt during the
last 20 years or so.  Even the ones rebuilt recently have this

I have started using nuts made of nylon.  I have tried soaking leather
nuts in shellac or lacquer but that doesn't seem to stop the problem.

Don Teach
Shreveport, Louisiana

(Message sent Wed 30 Apr 2008, 14:48:29 GMT, from time zone GMT-0500.)

Key Words in Subject:  Cause, Corrosion, Leather, Metal, Nuts, Stems, Valve

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