Klarinet Archive - Posting 000376.txt from 2005/04

From: "Wes Kilpatrick" <whkilpatrick@-----.net>
Subj: Re: [kl] Rubber pads
Date: Sat, 23 Apr 2005 19:18:18 -0400

I am a repair tech and one of the reasons that I can see that rubber should
not be used is based on the degree of hardness. Over the years I have
experimented with cork, composition corks, synthetic cork and different felt
material. One of the things that brings me back to cork is the "feel" of the
material. Also cork is so much easier to work with. It is very durable, cuts
easily and is sandable to give a proper fit. Additionally, I have tried to
use rubber type corks on flute trill keys and the main problem that I find
is that it is difficult to find a good glue that will hold it in place for
the long haul but still be able to be easily removed. I have serviced quite
a few instruments with the Valentino type synthetic cork and the same
problem exists. The double stick tape doesn't hold for a long time and
replacing missing silencers is a very common repair. All in all it is just
difficult to beat what good old Ma Nature gives us!!
----- Original Message -----
From: "Bill Hausmann" <bhausmann1@-----.net>
To: <klarinet@-----.org>
Sent: Saturday, April 23, 2005 12:22 PM
Subject: Re: [kl] Rubber pads

> At 05:11 PM 4/23/2005 +0300, Daniel Fairhead wrote:
>>Hi all,
>>
>>Is there a good reason why rubber (say from an erasor) is
>>not used for replacing bits of cork (bumpers?) on clarinet
>>keywork? I read that it can contain sulfur which could damage
>>silver plating, is this an issue on nickle plated keys?
>>And if so, are there certain types of glue which contain
>>sulfur and should be avoided too?
>
> One possible explanation is that when rubber deteriorates, it gets STICKY.
> I also have found that it is hard to get glue to stick to rubber. On the
> other hand, synthetic/plastic bumpers are used on some student flutes,
> particularly Yamahas, and there is a sort of plastic foam that has begun
> to show up in key cork use lately. Buffet E-11s use a synthetic cork on
> keys, but not for tenons.
>
> The most common glues used are shellac, contact cement, and hot glue. All
> of them are safe with silver to the best of my knowledge.
>
>
> Bill Hausmann
>
> If you have to mic a saxophone, the rest of the band is TOO LOUD!
>
>
>
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>
>

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