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Re: [TR] brake pressure switch O-rings

To: "'Al Salvatore'" <tr6parts@charter.net>, <triumphs@autox.team.net>
Subject: Re: [TR] brake pressure switch O-rings
From: "Randall" <tr3driver@ca.rr.com>
Date: Tue, 8 May 2012 18:29:16 -0700
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Viton is not recommended for use with conventional brake fluid.  One report
I found said it swelled by 56% when exposed to "Girling Crimson" for 2
weeks.  Obviously unacceptable.

EPDM is the right stuff, even if MMC doesn't mention all the uses for it.  
http://www.columbiaerd.com/epdm_orings.php

Here's the same chart for Viton
http://www.columbiaerd.com/fluorocarbon_orings.php

-- Randall 

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