Moulded Key Tops

[John Ross]

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I bet you mean Portland in the West coast?
John M. Ross
Windsor, Nova Scotia, Canada
jrpiano@win.eastlink.ca
  ----- Original Message -----=20
  From: Joe Garrett=20
  To: pianotech=20
  Sent: Sunday, March 06, 2005 2:19 PM
  Subject: Re: Moulded Key Tops


  John Ross asked: "Joe had mentioned problems buffing.
  I also have problems in this area.
  I had thought on a softer buffing wheel, but have been unable to find =
a =3D
  source. The selections available at my suppliers, are limited.=3D20
  Any ideas?
  I had thought on slowing the wheel down. Would that help?"
  John,
  I suspect it would, as "slow" hand buffing will eventually remove the =
scratches in that stuff, but it is very labor intensive. The time it =
takes to do this, I'd best spend replacing the entire set with something =
that can be buffed! Yikes!
  Another problem, for key covering, is the fronts. IMO, anything over =
.040" thick, is not acceptable. The only supplier that offers material =
in this dimension, is Piano Tech. Their material is the same as the =
moulded key top material! It will scratch very easily and has to be =
corrected with hand buffing, as it won't buff, even with extremely light =
pressure  and a slow buffing motor w/soft wheels. (In Portland, there is =
a company that specializes in plastic, of all kinds, plus all the =
necessary stuff that is necessary to achieve good results. It's call =
Multi-Craft. I got some really fantastic extra fine buffing compound =
from them!<G> (Pastel Blue, in color) Really works great. BTW, my =
buffing wheels turn at 1735rpm or less. As it's not a good idea to put a =
speed reducer on an electric buffing motor, I haven't tried that. (It =
will prematurely burn out the motor.) I do have one set (2) of buffing =
arbors that are belt driven. I've put different drive wheels on them, to =
reduce the speed somewhat. I usually use that set up for brass/metal. =
Hmmm? perhaps I'll try buffing the next set of keys, (with appropriate =
"clean" buffing pads.), with the next set I do. It's a thought.<G>
  Best Regards,=20

  Joe Garrett, R.P.T.
  Captain, Tool Police
  Squares R I=

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