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Valve stem seals: teflon or viton?

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Old 03-10-2009, 04:36 AM
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TT Oversteer
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Default Valve stem seals: teflon or viton?
Both are available and cost about the same. Does anyone have any experience or opinion on which is best? Pros/cons of each?
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Old 03-10-2009, 01:21 PM
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Steve Weiner-Rennsport Systems
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I use Viton for most applications.
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Old 03-10-2009, 04:03 PM
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Ian Ledger
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Teflon is a good lubricant, and thus has a low friction, however it also has poor wear resistance and seems to me to be a poor choice for for a long life seal.
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Old 03-11-2009, 12:55 PM
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MUSSBERGER
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http://wildenpump.com/specs/AODDP-CHEMGUIDE-REF-02.pdf

He is a chart on chemical compatibility of different materials from pumps that I use to sell.
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