Moulded Keytops, problems buffing

[Michael Gamble]

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Hello Robin
My "Buffing and Polishing Compound" comes in a cardboard tube which you =
push up at one end. In colour it is sort of "light buff" (very =
appropriate).
Rergards
Michael G.(UK)
  ----- Original Message -----=20
  From: Robin Stevens=20
  To: Pianotech=20
  Sent: Tuesday, March 08, 2005 12:03 AM
  Subject: Re: Moulded Keytops, problems buffing


         Terry,
        I only use the red rouge on Brass and metal, and have a separate =
softer wheel for keys only using the white rouge.

        My Key wheel is 6x2 inches and runs at 2850 rpm. I have no =
problems at that speed but the harder you push on the wheel the more =
chances you have of burning the Key.

        The wheel for Brass and metal is normally fully sewn and harder. =
After a while the soft key polishing wheel will harden,so I run the =
pointy end of a file across the wheel a couple of times to loosen it and =
make it softer. =20

        Here in Australia the rouge comes in the form of a long bar. =
Hence the name "buffing soap"

        Regards
        Robin Stevens

        -------Original Message-------

        From: Pianotech
        Date: 03/08/05 10:13:36
        To: Pianotech
        Subject: Re: Moulded Keytops, problems buffing

        I just buffed a set of plastic keys today on my ShopSmith. I =
slowed the ShopSmith down to the "jigsaw" setting (almost the slowest =
setting - a wild guess might be 500 rpm - maybe a bit more). I used an =
unsewn buffing wheel. I used red rouge on the nastiest scratches and =
marks - the red rouge is aggressive and leaves a fine scratch pattern. =
Then I hit them all with white rouge on a similar buffing wheel and they =
all polished up bright and shiny in just a few seconds for each key.

        Terry Farrell

        On 3/6/05 John Ross wrote:

        >>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 source. The selections available at my suppliers, are limited.=20

        Any ideas?

        I had thought on slowing the wheel down. Would that help?

        John M. Ross<<

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