Klarinet Archive - Posting 000270.txt from 2001/10

From: Jesse Rogers <jar@-----.com>
Subj: [kl] Oiling the bore (reprise)
Date: Tue, 9 Oct 2001 22:33:51 -0400

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Date: Tue, 09 Oct 2001 22:30:18 -0400
From: Jesse Rogers <jar@-----.com>
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Subject: Oiling the bore (reprise)

I have a question regarding the purpose of
oiling the bore. In a dry climate, an unplayed
wooden clarinet will shrink or contract to some
degree, the bore and the surface pretty much
equally. If warm moist air is blown through
the clarinet, the inner diameter (bore) will
swell or at least shrink less than the outer
diameter (surface). At some point the pressure
of the swelling bore will expand a contracting
surface to the point of checking or cracking. I
gather from the previous posts that while
grenadilla absorbs very little oil and with
little penetration, it does absorb moisture to a
much greater degree. A light coating of almond
oil in the bore of my clarinet absorbs in a
matter of hours, if it doesn't penetrate deeply
it must be coating the outer pores of the wood
right on the surface. Will this not inhibit
the absorbtion of moisture and will this not
control to some degree the swelling of the bore
and help to prevent cracking?
Thank you,
Jesse Rogers
Columbus, OH

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