Mildew

[Lance Lafargue]

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Marcel,
Getting the mildew off shouldn't be too hard.  My suggestion, though, would
be to ask a few questions of the owner.....  Find out the history of the
piano and the environment the piano has been in.  Once the mildew is
removed, if the cause hasn't been eliminated, you've wasted your time.  I
would recommend a Dampp-Chaser with a humidistat to prevent a reoccurance.
I usually install a rod under the action and one 50 watt under the board
with the humidistat.  Once the piano is dry, mildew shouldn't be an issue.

For his nose, a room dehumidifier may be needed, but that's OFF-TOPIC!!

I have gotten some light grey mildew off by just wiping with a dry cloth,
other heavy black or green may be tougher.  I have used methanol on a cloth
before, the Methanol also helps the bushings.  You should need to ease all
bushings, balance rail holes, etc because of the humidity anyway.  Good luck
with it.

Lance Lafargue, RPT
Mandeville, LA
New Orleans Chapter, PTG
lancelafargue@bellsouth.net

  -----Original Message-----
  From: owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]On Behalf Of
Marcel Carey
  Sent: Monday, December 18, 2000 2:25 PM
  To: pianotech
  Subject: Mildew


  Hi,
  This morning I ran into a piano that is growing mildew. The action
backchecks and butts show the nasty stuff. I mentioned this to the customer
and she told me that her husband had 3 sinus operations and his doctor told
him they probably had mildew in the house. My question is:

  Is there something to remove this nasty stuff. Is there a chemical product
that could be sprayed or brushed on the piano parts to kill these mushrooms
and prevent them to grow back? Would heath destroy them? If yes what kind of
temperature are we talking about?

  Thanks for the help.

  Marcel
  Marcel Carey, accordeur technicien
  (819) 564-0447
  mcpiano@globetrotter.net

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