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Klarinet Archive - Posting 000069.txt from 2001/05

From: Richard Bush <rbushidioglot@-----.com>
Subj: Re: [kl] Cracks
Date: Wed, 2 May 2001 22:30:35 -0400

Nothing has been mentioned about petroleum based bore oils vs. organic bore
oils. Larry Naylor of Denver believes that many organic bore oils actually
embrace water; they are hygroscopic. If an oil actually will allow water to
become part of its molecular structure, and if they actually mix, then we're
talking about a mixture that can be more stable on and within the grain of
the wood, moderating those times when the wood is subjected to a flood of
water and other times when all is allowed to become relatively dry.

I use his formula. It "seems" to absorb into the wood, especially those
places one would expect to be most dry. Such places are the sockets and
bore of a barrel, the end grain and beginning bore at the top of the upper
joint and the upper tone holes which collect take on most condensation and
saliva. Of course, all tone holes have end grain, but many who lightly swab
their bores with bore oil don't remove the keywork and these open, end grain
areas continue to breath, to dry out and not benefit from the light, topical
bore oiling process. On the other hand, commercial bore oils I've used just
sit on the wood and pretend to be an oil spill needing to be cleaned up by
hazardous waste clean-up team.

William Wright wrote:

> <><> Carol Talbot wrote:
> With all due respect to Alvin, his test seems to measure oil absorption
> by wood, not water absorption.
>
> Exactly, Carol. For example, many oils are nonpolar, whereas
> water is polar. The surface tensions are completely different. The
> viscosities are different. The molecular dimensions and tendency to
> hydrogen bond are different. And so forth.
> The oil immersion demonstration is interesting with regard to the
> value of oiling a clarinet, but it says absolutely nothing about how
> deep or fast water will or won't penetrate.
>
> Cheers,
> Bill
>
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