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To: bazza@sy*.di*.oz*.au*
Subject: Re: O Rings and using O2 mix
From: <GASDIVER@ao*.co*>
Cc: techdiver@opal.com
Date: Tue, 28 Feb 1995 17:35:29 -0500

The "normal" o-ring compound (Buna-N) degrades much faster in hyperoxic
atmospheres. In pure O2 environments it can literally detonate. Many people
choose to use Buna-N in the 22% to 40% range with the proper lube and throw
away the o-rings at annual service.
Cheers,
JD Selser

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