keytop replacment questions ( and ivorine story )

[Gregory Torres]

Del:

I must be talking about "pyralin" I guess because years ago it was
discontinued by Schaff and  American Supply. The reason? It was found to be
extremely hazardous when ignited (as I found out). Not only dangerous as in
catching on fire but the smoke is toxic as well.
Perhaps the term "ivorine" has been incorrectly used by myself and others
putting celluloid and ivorine in the same category or is there something
else about this I don't know?

Thanks,
Greg Torres

-----Original Message-----
From: Delwin D Fandrich <pianobuilders@olynet.com>
To: pianotech@ptg.org <pianotech@ptg.org>
Date: Tuesday, December 02, 1997 10:17 AM
Subject: Re: keytop replacment questions ( and ivorine story )


>Del wrote<

>Are we talking about the new sheet "ivorine" here, or the older celluloid
that was used many long years ago?
>
>I worked with ivorine for many years with no problems. It came in sheet
form and we cut it into roughly 1" x 6" pieces to
>glue onto keys. Trimming was done either with an Osland key trimmer, or
later with a sliding table on a router table.
>
>I never found "ivorine" to be particularly flammable. Now, celluloid was a
whole other matter...
>
>-- ddf
>
>
>