Klarinet Archive - Posting 000703.txt from 2003/07

From: raycraft@-----.com
Subj: Re: [kl] mouthpiece discoloration
Date: Thu, 24 Jul 2003 15:17:17 -0400

Thanks for all your comments, guys. I know plenty of people
who play on older hard rubber mouthpieces and they haven't
exactly gotten lip cancer from it. ;-)
Sue

>>No it's not dangerous. Hard rubber will turn greenish brown over time
>> if exposed to too much sunlight. Notice that the inside is still
>> probably nice and black. You may even see where the ligature was if it
>> was stored with a ligature on it.
>>
>>All that is happening is that the surface layer is losing a little bit
>> of the elements used in vulcanizing the rubber.
>
> Furthermore, the discoloration is on the surface only. It can be
> removed by light buffing. There is sulphur in the stuff, but that is
> probably the worst of it.
>

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