<VV> Viton a poor choice for a dynamic seal?

[lonwall@corvairunderground.com]

Kevin - That is one opinion. But most other opinions that hold at least 
equal weight say the opposite. The increasing number of failures on 
these seals is pointing to something, wouldn't you think?

It will remain a controversy, but to those who have to re-do this un-fun 
job, I suspect we'll finally see a shift.

Lon
www.corvairunderground.com


On 2/11/2012 6:14 PM, kevin nash wrote:
>
> Heres a link that compares all of the relevant seal materials and the relevant properties:http://www.elderrubber.com/material.htm I'm posting this link so you can decide for yourself if Viton is a poor choice for a dynamic seal-I've tried very hard to find a engineering data sheet that says that, and was not able to find it.As this data sheet shows, the compression set and resiliency of viton (FKM) is better than polyacrilate (ACM)while viton is slightly less abrasion resistant than polyacrilate- neither of these materials is "not recommended"for a dynamic seal!Kevin Nash 		 	   		
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