Ivoritis Elsewhere?

[Farrell]

I just hit 'em on the buffing wheel. Just the buffer will take out pretty deep scratches - although with a deep scratch, you may well be better off to sand a bit first just to keep the key flat. I think I usually use the red rouge compound.

Terry Farrell
  
----- Original Message ----- 
From: "Cy Shuster" <charter1400@charter.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Sunday, August 17, 2003 5:09 PM
Subject: Re: Ivoritis Elsewhere?


MessageWhat kind of "typical abrasives" do you use on plastic keys?

I've cleaned some errant spots of stain from my naturals using 0000 steel wool, and I'm now experimenting with various abrasives to remove the scratches I caused.  I've been successful using a sanding block with 1500 grit emery cloth, followed by a buffing wheel with Dico's E5 emery compound for ferrous metals, and then buffing with "Zam" to put the gloss back.

I'm being careful not to cause more problems then I'm solving (having learned from the steel wool!), but none of these abrasives cut as much as I would have expected on plastic.  I only have to do about ten keys, thank goodness...

I'd be happy to hear what others have used.

--Cy Shuster--
Rochester, MN

  ----- Original Message ----- 
  From: Jeannie Grassi 
  To: 'Z! Reinhardt' ; 'Pianotech' 
  Sent: Monday, August 11, 2003 11:06 AM
  Subject: RE: Ivoritis Elsewhere?


  Hi Zen,
  I encountered a Kawai with graying, discolored white keys.  It turned out that the stain on the sharps was coming off on the fingers and then getting spread to the white keys.  I replaced the black keys and I was able to buff the white keys so that they looked as good as new.  However, that involved the typical abrasives used with a buffing wheel.

  Hope this helps,
  jeannie
  Jeannie Grassi, RPT
  Associate Editor, Piano Technicians Journal
  mailto:jgrassi@silverlink.net 

    -----Original Message-----
    From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Z! Reinhardt
    Sent: Friday, August 08, 2003 3:30 PM
    To: Pianotech
    Subject: Ivoritis Elsewhere?


    Friends:

    Has anyone else come to a case of ivoritis on a non-Yamaha piano?  Classic signs -- white keys turning greyish, but it doesn't feel sticky the way most grunges would.  Non-abrasives will not remove the stuff.  The piano in question is a Boston 218 (pretty big).

    Any brilliant ideas?

    Thanks in advance --
    Z! Reinhardt  RPT
    Ann Arbor  MI